Surge Arrestor/SPD DC surge protective devices for PV system

1. 177
Installation Diagram
Building lightningproof regional map
Classification of lightningproof
zone for buildings (LPZ)
Primary protection for power supply (MBD1-B)
Primary protection for signal circuit (MBX-RJ45)
(ALT) Protector for CATV circuit (MBD-T)
Secondary protection for power supply (MBD1-C)
Secondary protection for signal circuit (MBX-RJ45)
Protector for antenna feeder
In order to distinguish the degree that lightning electromagnetic
pulse(LEMP) on different lightningproof zone and the position of
equal potential inthe joint between differentzones. The protected
zone divided into several lightningproof zones (LPZ).
LPZ0A zone:all objects in this zone may be strikeby direct lightning
and carry full lightning current, electromagnetic field strength has
no attenuation.
LPZ0B zone: withi n the relevant scopeof selected grounder radius
in this lightning-proof zone, the objects may not be strike by direct
lightning, but electromagnetic field strength has no attenuation.
LPZ1 zone: the objects in thiszone are impossibly strike by lighting,
lighting current on conductors and electromagnetic field strength
are attenuated, the attenuation degree is determined by field
solutions in the buildings.
LPZ2 zone: if required to further reduce lighting current and
electromagnetic field strength, it shall add extra lightningproof
zone, such as machine room with shield, metal shellof equipment,
machine cabinet and etc; it shall determine suchzone according
to ambient conditions for the protected object.
Typical application of surge protective
device for information building
LPZ0A
LEMP
LPZ0A
LEMP
LEMP
LEMP
LEMP
LPZ0A
LPZ0B
LPZ0B
LPZ1
LPZ2
LPZ3
LPZ1
LPZ0A
LPZ0B
1
3
2
Lightning rod
External lightning
protection equipment
Antenna
Lead referrals
(Computer room)
Equipment
metal case, etc
Shielding (3)
Structures within the room
(Representative shie lding 2)
Buildings
(Representative shielding 1)
In LPZ1 and LPZ2
on the interface
bonding belt
Lightning zone
In LPZ0B area and LPZ1
boundaries of surface
bonding belt
Lead referrals
The electric power,
the signal cable,
routes and metal pipe
Ground net.through
introducing
(door, window)
Hole
CATV
B1 B2
C2
C1
HUb
A2
A1
Satellite three line Lightning rod
Grounding lead referrals
Cable TV
Signal cable Network cable
office office office office office
Receiver
Server
Workstations
Signal the
first level
protection
Potential spark gap
Total
switchgear
room
Points
switchgear
room
SwitchSignal the
second level
protection
Thefirstlevel
protection
The second
level protection
Logic where

2. 178
N
L3
L2
L1
PE
MBD1-B100
MBD1-B80
MBD1-B65
MBD1-B60/3+NPE
MBD1-C40/3+NPE
L=5-10m L=5-10m
MBD1-D10/1+NPE
MBD1-D20/1+NPE
Up 3.0kV Up 2.0kV Up 1.5kV
TT System (1)
Total
distribution ark Distribution
electricity ark
Equipment
place
According to different protection modes, nomenclature and definitions of IEC standard, Low voltage distribution system divided into three
kinds on basis of earthing mode of low voltage distribution system.
1. TT power supply network: TT mode is namely the protection system that metal shell of electric consumer directly earthed, calling
protective earthing system, or TT system.
2. TN power supply network: this system require metal shell of electric equipment is connected with neutral line, also calling Neutral
protection system, indicated by TN.
3. TN-C power supply network: neutral line also used as protective ea rthing wire, calling Neutral Protective earthi ng line, indicated
by NPE.
4. TN-S power supply network: neutral line (N) and protective earthing (PE) wire are separated.
5. TN-C-S power supply network: in the temporary power supply for the constructing sit e, if front supply ne twork is TN-C, and TN-S
network shall be required on local constructing sites, so PE line can be divided from general distribution box on local site.
6. IT network, I means isolation without earthing, or earthing via high resistance. Every two letters of 'T' means electric consumer of
loading side is protective earthed.
MBD Surge Protective Device(SPD)
Installation diagram
Basic network of Power Supply

3. N
L3
L2
L1
PE
MBD1-B60
MBD1-B40
L=5-10m L=5-10m
MBD1-D10
MBD1-D20
Up 3.0kV Up 2.0kV Up 1.5kV
MBD1-B100
MBD1-B80
MBD1-B65
Total
distribution ark
Distribution
electricity ark
Equipment
place
TT System (2)
N
L3
L2
L1
PE
MBD1-B100
MBD1-B80
MBD1-B65
MBD1-B60
MBD1-C40
L=5-10m L=5-10m
MBD1-D10
MBD1-D20
Up 3.0kV Up 2.0kV Up 1.5kV
TN-S System
PE
Total
distribution
ark
Distribution
electricity ark
Equipment
place
Installation Diagram
Basic network of Power Supply
179

4. N
L3
L2
L1
PE
L=5-10m L=5-10m
PE
MBD1-B100
MBD1-B80
MBD1-B65
MBD1-B60
MBD1-C40
MBD1-D10
MBD1-D20
Up 3.0kV Up 2.0kV Up 1.5kV
Total
distribution ark Distribution
electricity ark
Equipment
place
L3
L2
L1
PE
MBD1-B100
MBD1-B80
MBD1-B65
MBD1-B60
MBD1-C40
L=5-10m L=5-10m
Up 2.0kV Up 1.8kV
Total
distribution ark Distribution
electricity ark
IT System The Wiring Diagram
TN-C-S System
Installation Diagram
Basic network of Power Supply
180

5. MBD1-B100/80
Operation Elements Technical Parameter
108
L L L N
90
45
50
62
35
MBD1-B100
Rec
Uc
Imax
In
Up
:
:
:
:
~385V
100kA
60kA
3.0kV
GB18802.1
IEC61643-1
MBD1-B100
Rec
Uc
Imax
In
Up
:
:
:
:
~385V
100kA
60kA
3.0kV
GB18802.1
IEC61643-1
MBD1-B100
Rec
Uc
Imax
In
Up
:
:
:
:
~385V
100kA
60kA
3.0kV
GB18802.1
IEC61643-1
MBD1-B100
Rec
Uc
Imax
In
Up
:
:
:
:
~385V
100kA
60kA
3.0kV
GB18802.1
IEC61643-1
Installation
To be mounted between LPZ0Aor LPZ0B
zone and LPZ1 zone, adopts 35mm standard
mountin g rail. The cross sectional area of
2
multi-strand soft copper conductor: 6~ 35mm .
Generally it shall be mountedin the incoming
side of main distribution panel or box.
2
Earthing wire shall be of 10mm dual color
conductor, its lengthnotmorethan500mm.
In order toeliminate the influence on normal
service of power netwo rk due SPD is invalid,
it shall add fuse or breaker to be series
connected in Lline. (NB: selected according
to standard current In)
SPD as only one side of terminals, able to
prevent from being electric touching, indoor
fixedly mounted, limiting voltage.
SPD has built-in disconnector, when SPD
is invaliddue to overheating or breakdown,
the disconnector can automatically separate
SPD from the network, meanwhile send an
indication signal. The visible window show
white color in normal service, if to be separated
from network, it will show red color.
Maxi discharging current of each wire:
up to 100KA.
Model and specification MBD1-B60 MBD1-B80 MBD1-B100
Maxi discharging current
Nominal discharging current
Response time
Application
Protection grade
Remote signal Function
Indication of invalidation
Remarks
60 80 100
<25
IP20
Primary protection for in line
Can also picking
Maxi continuous operating voltage
Voltage protective level
750
3.5
420
2.2
385
2.0
275
1.6
420
2.5
385
2.3
320
2.0
275
1.8
420
3.0
385
3.0
320
2.5
275
2
30 40 60
Aging invalidation: white: Normal, red: invalidation
Other maxi continuous operating voltage Canbe customized
MBD1 Series
Surge Protective Device
Product introduction
MBD1 series surge protective device
(herei nafte r called SPD) is suitably used
in the IT, TT, TN-C, TN-S,TN-C-S and etc
power supplysystem ofAC 50/60Hz, rated
voltage up to 380V, to protect from direct
and indirect lightning impulse and other
transient over voltage.As perthe conditions
of IEC61643-1:1998-02 standard, Class I
surge protective device, it is category B
surge protective device. SPD has two
protection modes: MC and MD, SPD is in
compliance with GB18802.1/IEC61643-1
standards.
Model and Signification
MB D 1 100 385- - -
Number of poles: 1P 2P 3P 4P
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
-
Remote signal
B, C, D level protection
Outside Size Fig
181

6. MBD1-B60
Installation
The SPD need not to be adjusted afte r
in-stalled according to requirement.
It can automatically protect the power
net-work after proper installation.
On services it need periodically check if
SPD isinvalid ornot,meanwhile checkred
indicator of fuse lightingor not, please rep-
lace the invalid element on time.
Operation Elements
Technical Parameter
MBD1-B Series
Surge Protective Device
Product introduction
MBD1-B series surge protective device
(hereinafter called SPD) is suitably used
in the IT, TT,TN-C, TN-S, TN-C-S and etc
power supply system ofAC 50/60Hz, rated
voltage up to 380V, to pr otect from direct
and indirect lightning impulse and other
transient overvoltage. As per theconditions
of IEC61643-1:1998-02 standard, ClassI
surge prote -cti ve device, it is category B
surge protective device.
SPD has two protectionmodes: MC andMD
SPD is in compliance with GB18802.1/
IEC61643-1 standards.
In three phases and four wires system,
all three phaselines and oneneutral line
to earthing line haveSPD to be protected,
in normal service,the SPD isat the state
of high resistance,when networkproduce
surging over-voltage dueto thunder or other
reasons, SPD will be conductive within
short time (ns), lead surging voltage into
ground, consequentlyto protect theelectric
appliances ofnetwork. Aftersurging voltage
passed by SPD, and disappeared, SPD
recover in high resistance. It will nothave
influence on thenormal service ofnetwork.
Outside Size Fig
91
45
L NL L
72
50
62
35
MBD1-B60
Rec
Uc:
Imax:
In:
Up:
~385V
60kA
30kA
2.0kV
GB18802.1
IEC61643-1
MBD1-B60
Rec
Uc:
Imax:
In:
Up:
~385V
60kA
30kA
2.0kV
GB18802.1
IEC61643-1
MBD1-B60
Rec
Uc:
Imax:
In:
Up:
~385V
60kA
30kA
2.0kV
GB18802.1
IEC61643-1
Rec
MBD1-B60
Uc:
Imax:
In:
Up:
~385V
60kA
30kA
2.0kV
GB18802.1
IEC61643-1
Model and specification MBD1-B60 MBD1-B80
Maxi discharging current
Nominal discharging current
Response time
Application
Protection grade
Remote signal Function
Indication of invalidation
Remarks
60 80
<25
IP20
Primary protection for in line
Can also picking
Maxi continuous operating voltage
Voltage protective level
30 40
Aging invalidation: white: Normal, red: invalidation
Other maxi continuous operating voltage Canbe customized
420
2.2
385
2.0
320
1.8
275
1.6
420
2.5
385
2.3
320
2.0
275
1.8
A
B
C
N
L L L N
1
2
1
2
1
2
Principle Diagrams
Figure 1 380 V network diagram Figure 2 surge protector electrical diagram
Note: 1 heat failure from the 2 pressure sensitive resistors
182

7. MBD1-C40
Installation
To be mountedbetween LPZ0B or LPZ1 zone
and LPZ2 zone, adopts 35mm standard
mounting rail. The cross sectional area of
multi-strand soft copper conductor: 2.5~35
2
mm .
Every phase of SPD shall be protected by
fuse or mini circuit breaker fromshort circuit
when SPD is broken downcaused by surging
voltage.
It is mounted in distribution boxesof different
floors, computer center, telecommunication
room, control room of elevator, CATV room,
fire fighting center, distribution box of villa
and etc.
A
B
C
N
L L L N
1
2
1
2
1
2
Principle Diagrams
Figure 1 380 V network diagram
Figure 2 surge protector electrical diagram
Note: 1 heat failure from the 2 pressure sensitive resistors
91
45
L NL L
72
50
62
35
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C Series
Surge Protective Device
Product introduction
Outside Size Fig
MBD1-C series surge protective device
(hereinafter called SPD) is suitably used
in the IT, TT, TN-C, TN-S, TN-C-Sand etc
power supplysystem of AC 50/60Hz,rated
voltage up to 380V, to protect from dir ect
and indirect lightning impulse and other
transient over voltage. Asper the conditions
of IEC61643-1: 1998-02standard, ClassII
surge prote-ctive device, it is category C
surge protective device.
SPD has two protection modes: MCandMD
SPD is in compliance with GB18802.1/
IEC61643-1 standards.
Operation Elements
SPD as onlyone side ofterminals, able to prevent from being electric touch ing, indoor
fixedly mounted, limiting voltage.
SPD has built-in disconnector,when SPD is invaliddue to overheatingor breakdown,
the disconnector canautomatically separate SPDfrom the network,meanwhile send
an indication signal. The visible window show white color in normal service, if to be
sepa-rated from network, it will show red color.
1P+N, 2P+N, 3P+N SPD consist of 1P 2P 3P SPD and NPE neutral and earthing
protection modules, used in the power supply system of TN-S, TN-C-S and etc.
Technical Parameter
Other maxi continuous operating voltage Canbe customized
Can also picking
Secondary protection for in line
20
750
3.0
420
2.0
385
1.8
320
1.6
275
1.5
175
1.3
48
0.6
<25
IP20
40
Aging invalidation: white: Normal, red: invalidation
MBD1-C40
Remarks
Remote signal Function
Application
Indication of invalidation
Protection grade
Model and specification
Maxi discharging current
Nominal discharging current
Response time
Voltage protective level
Maxi continuous operating voltage
183

8. MBD1-D20
Principle Diagrams
L/N
M1
V
t
V: high-energy MOV
Ft: Large current fusing
t : Hot open circuit device
M I: Open circuit instructions device
Red failure, White normal
MBD1-D Series
Surge Protective Device
Outside Size Fig
Product introduction
MBD1-D series surge protective device
(hereinafter called SPD) is suitably used
in the IT,TT,TN-C, TN-S, TN-C-S and etc
power supply system of AC50/60Hz, rated
voltage up to 380V, to protect from direct
and indirect lightning impulse and other
transient over voltage. Asperthe conditions
of IEC61643-1:1998-02 standard, Class III
surge protective device, it is category D
surge protective device.
SPD hastwo protection modes: MC and MD
SPD is in compliance with GB18802.1/
IEC61643-1 standards
Installation
To be mountedbetween LPZ1 orLPZ2 zone
and LPZ3 zone, adopts 35mm standard
mounting rail. The cross sectional area of
multi-strand soft copper conductor: 2.5~ 35
2
mm .
Every pole of MBDshall be protected by fuse
or mini circuit breaker.
It is mounted in distribution boxes of living
house, computer center, communication
equipment, electronic equipment and control
equipment or nearest socket box.
91
45
L NL L
72
50
62
35
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
Operation Elements
SPD as only one side of terminals, able to prevent from being electrictouching, indoor
fixedly mounted, limiting voltage.
SPD has built-indisconnector, when SPD isinvalid due to overheating or breakdown,
the disconnector can automatically separate SPD from the network, meanwhile
send an indicatio n signa l. The visi ble window show white color in normal service,
if to be sepa-rated from network, it will show red color.
1P+N, 2P +N, 3P+N SPD consist of 1P 2P 3P SPD and NPE neutral and earthing
protection modules, used in the powersupply system of TN-S , TN-C-S and et c.
Technical Parameter
Model and specification
Other maxi continuous operating voltage Canbe customized
Can also picking
Several protection for in line
Aging invalidation: white: Normal, red: invalidation
IP20
<25
Remarks
Remote signal Function
Application
Indication of invalidation
Protection grade
Response time
Nominal discharging current
Maxi discharging current
Voltage protective level
Maxi continuous operating voltage 420
1.8
385
1.5
320
1.4
275
1.2
420
1.6
385
1.3
320
1.2
275
1.0
750
2.5
750
2.0
20
10
10
5
MBD1-D20 MBD1-D10
184

9. MBD1-RC40
MBD1-R Series
Fuse Combination
Surge Protective Device
MB D 1- R / / /
Enterprise code
Surge Protective Device(SPD)
Design No
Maxi discharging current Imax(8/20 s)(kA)
Maxi continuous operating voltage Uc(V)
Remote signal
Fuse Combination
Number of poles: 1P, 2P, 3P, 4P 1P+NPE, 3P+NPE
Features Technical Parameter
Product introduction Model and Signification
In order to meet with user demand, we
developed new generation MBD1-R series
protector with built- in circuit breaking
devi ce, to limit surge current,overvoltage,
over-current occurred in thepower system
due to somereasons, working in the system
of AC50Hz, rated voltage380V and bel ow
to prevent surge voltage from damaging
electric equipment.
MBD1-R series protector has integrated
short circuit protective function in its SPD
module, fuse notneeded again, itcan be
mountedon35mm railway, compared with
normal combination of fuse+ SPD module,
there has following advantages:
Residual voltage reduce morethan 50%, for
normal combination, fuse bodyandconnected
conductor haveinductance,and willresult
in residual voltage, but MBD1-R series
almos t has noresidualvoltage at this case,
therefore it can getbetter result ofprotecting
equipment.
Easy installation, saving space, saving
installation cost in cabinet.
Quicker response speed,comprehensive
performance being improved.
Better N point:no matter which step of circuit,
there has shortestdistance for discharging
surge current,residualvoltage decrease more.
Model and specification MBD1-RB60MBD1-RC40MBD1-RD20MBD1-RD10
AC220V/AC380V
AC385V/AC420V
30
60
40
20
20
10
10
5
1.8/2.01.5/1.81.2/1.51.0/1.2
1P 2P 3P 4P 1P+NPE 3P+NPE
25ns
Ip20
Rated working voltage Un(AC)
Maxin continuous operating
voltage
Nominal discharging current In
Max discharging current Imax
Protective level Up (kV)
Pole combination
Response time tA
Outline size mm (Lx H x W)
Protective grade
Indication of invalidation
Remote signaling function Able to provide if required.
Aging invalidation: white: Normal, red: invalidation
Short circuit invalidation: red LED shining.
135*73*18n Pole number
MBD1-RB80
40
80
2.0/2.5
Remark
Other maxi continuous working voltage Uc(AC) 175V 275V
320V, can be supplied if required.
185

10. MBD1-D20-N-PE
91
45
L
N
L L
72
50
62
35
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
MBD1-D20
Rec
Uc:
Imax:
In:
Up:
~385V
20kA
10kA
1.5kV
GB18802.1
IEC61643-1
N-PE
Uc:
Imax:
Up:
~255V
40kA(8/20)
1.1kV
GB18802.1
IEC61643-1
Technical Parameter
N-PE Series
Surge Protective Device
Product introduction
Outside Size Fig
L1
L2
L3
N
PE
L
N
PE
Figure 1 Figure 2
Principle Diagrams
N-PE surge protective device module
(here inaft er called SPD) is suitable for
the "3+1" circuitprotected modeTTsystem
of AC 50/60Hz, rated voltage up to 380V,
used in bet ween equal potential system
of neutral and PE line, to protect from
direct and indirect lightningimpulse and
other transient over voltage. If cooperated
with MBD1-C40 series surge protec tive
device, it is constructed as 1P+1NPE;
2P+NPE, 3P+NPE combined SPD, this
is to improve the surging protective
performance. As per the conditions of
IEC61643-1:1998-02 standard, Class II
surgeprotective device, it is category C
surge protective device.
N-PE meets withGB18802.1/IEC61643-1
standards.
Operation Elements
The main operating element of NPE is gas
discharging tube or air discharging gap, ge-
nerally, it is high resistance between electr-
odes, while the surge of direct and indirect
lightning impulse and other transient over
voltage influence on the power network, the
SPD between electrodes will be conductive
within short time (ns), and leading surging
current into ground, consequently to protect
the electric appliances of network. After
surging voltage passed by NPE, and disa-
ppeared, NPE recovers in high resistance.
It will not have influence on the normal
service of network.
Installation
NPE and MBD1-C series surge protective
devices forms MBD1-40-1P+N, 2PN, 3+P+N
and etcSPD, with MC and MD protection
modes.
NPE adopt s 35mm standard mounting rail.
2
Neutral line is of 2.5~ 35 mm conductor,
eart hing wire shall be dual color multi-
2
strand copper conductor of morethan 4mm ,
the length not more than 500mm.
Maxi continuous operating
voltage
Model and specification
Voltage protective level
Remarks
Remote signal Function
Application
Protection grade
Response time
Maxi discharging current
Nominal discharging current
Indication of invalidation
Other maxi continuous operating voltage Canbe customized
Can also picking
Aging invalidation: white: Normal, red: invalidation
Several protection for in line
IP20
25
20
40
MBD1-NPE
L-N
N-PE
L-N
N-PE
420
2.0
385
1.8
320
1.6
275
1.5
1.2
255
186

11. MBD1A-C
With sound and light alarm module appearance and size (mm)
Technical Parameter
Model and specification
Maxi carrying capacity
Nomial carrying capacity
MBD1S-B MBD1S-C MBD1S-D
80
40
60
30
40
20
20
10
10
5
Technical Parameter
Model and specification
Maxi carrying capacity
Nomial carrying capacity
MBD1A-B MBD1A-C MBD1A-D
80
40
60
30
40
20
20
10
10
5
MBD1S-C series remote sign-
aling surge protective device
MBD1S/A-C Series
Remote Signaling/Acoustic-optical
Alarm Surge Protective Device
Product introduction Model and Signification
The acoustic-optical alarm module shall
operate with module surge protective
device, used in AC 50/60Hz, 220V/385V
power supply system,the protectiongrade
and number of poles (1P 2P 3P 4P) are
determined by user.
Once power source module isout of oper-
ation, acoustic alarm sounds, red LED
flash, meanwhile it will give a command
signal to a terminal for alarm against
in va li di ty, which has NO, NC contacts,
namely NC marked with 1, 2, NO marked
with 1, 3; whilealarming, push black button
to cancel the alarm soundtemporarily, red
LED continue flashing, if fault module is not
replaced, the acoustic alarm will sound
again, after to replace the fault module, red
LED go out,SPD return tonormal operation.
Disconnector built in SPD, when SPD is
inva lid due to breakdown come from over
heating, over-current, the disconnector
will cut off the SPD automatically and give
indication signal of changed color. When
SPD work normally, the visible window of
module will show green, once invalid, it will
show red, and produce acousticoptical
alarm via connecting rod on the base, indi-
cating the status of SPD is innormal service,
aging, tripped temperature fuse or over-
current and etc.
Enterprise code
Surge Protective Device(SPD)
S: Output of remote signal
A: Output of acoustic-optical alarm
MB D 1 A/S - B/C
Protected Category
Design No
MBD1A-C series acoustic-optical alarm surge protective device
Disconnector built in SPD, when SPD is in-valid due to breakdown come from over-
heatin g, over-current, the disconnector will cut of f the SPD automatically and give
indication signal of c hanged color. When SPD work normally, the visible window of
modul e will show g reen, o nce in vali d, it wi ll show r ed, and produce acousticoptical
alarm via con- necting rod on the base,indicatingthe status of SPD i s in no rmal se rvice,
aging, tripped temperature fuse or over-current and etc.
2 3 2 3
1 1
L L L NL N
90
18
62
5018
90
45
35
Buzzer
Power
Reset
24 Hour
LED Arrester
1 2 3
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
MBD1-C40
Rec
Uc:
Imax:
In:
Up:
~385V
40kA
20kA
1.8kV
GB18802.1
IEC61643-1
Normal Failure
187

12. MBD2-40
Operation Elements
SPD has built-in disconnector, when SPD
is invalid due to overheating or breakdown,
the disconnector can automaticallyseparate
SPD from the network, meanwhile send an
indication signal. The visible window show
white color in normal service, if to be sepa-
rated from network, it will show red color.
Installation
To be mounted between LPZOB or LPZ1
zone and LPZ2 zone, adopts 35mm st andard
mounting rai l. The cross sectional area of
multi -strand sof t copper conductor: 2.5~
2
35 mm .
Every pole of SPD shall be protected by
fuse or mini circuit breaker. As required,the
user can assemble single poleor three poles
surge protective device freely.
MB D 2 65 385- - -
Number of poles: 1P, 2P, 3P, 4P
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
Outside Size Fig
65
50
45
35
N L1 L2 L3
72
18
91
57
45
C40
Red: Replace
Imax:
In:
Up:
Uc:
40kA
20kA
1.5kV
340V~
MBD2
GB18802.1
C40
Red: Replace
Imax:
In:
Up:
Uc:
40kA
20kA
1.5kV
340V~
MBD2
GB18802.1
C40
Red: Replace
Imax:
In:
Up:
Uc:
40kA
20kA
1.5kV
340V~
MBD2
GB18802.1
C40
Red: Replace
MBD2
GB18802.1
MBD2 Series
Surge Protective Device
Product introduction Model and Signification
MBD2 series surge protector (hereinafter
referred to as the SPD) is in absorbing
foreign advanced technology research and
development on thebasis ofnew replaceable
type SPD.
SPD is suitable for use in ac 50/60 Hz ac
rated voltage 380 V, belowthe power supply
system of indirect or direct lightning, the
lightning influence or other instantaneous
overvoltage protection.
SPD has common mode (MC)anddifferential
mode (MD) protection way.
SPD accord with GB18802.1 / IEC61643-1.
Technical Parameter
Can also picking
Protection for in line
Aging invalidation: white: Normal, red: invalidation
Model and specification
Response time
Application
Protection grade
Remote signal Function
Indication of invalidation
IP20
<25
Nominal discharging current
Maxi discharging current
Voltage protective level
420
2.5
MBD2-65
275
2.0
65
30
40
15
15
5
8
2
275
0.8
420
1.2
275
1.0
420
1.5
275
1.2
420
2.0
MBD2-40 MBD2-15 MBD2-8
Maxi continuous operating
voltage
188

13. MBD3-40/120
Operation Elements
Technical Parameter
MBD3 Series
Surge Protective Device
Product introduction Model and Signification
MBD3- B series surge protective device
(hereinaf ter called SPD) is suitably used
in the IT, TT,TN-C, TN-S, TN-C-S and etc
power supply system of AC 50/60Hz, rated
voltage up to 380V, to protect from direct
and indirect lightning impulse and other
transient overvoltage.As per theconditions
of IEC61643-1:1998-02 standard, Cla ss I
surge protective device, it is category B
surge protective device.
SPD meets with GB18802.1/IEC61643-1
standards.
Installation
Category B surge protective device (SPD),
used in the connection between equal pot-
ential electrodes while thunder occur.
To be mounted: between LPZ0A or LPZ0B
zone and LPZ1 zone, adopts 35mm standard
mounting rail. The cross sectional area of
2
multi-strand soft copper conductor: 2.5~35mm.
Generally to be installed in low voltagemain
incoming distribution panel, overhead incoming.
As required, theuser can assemble single pole
or three poles surge protective device freely.
Generally to be installed in low voltage main
incoming distribution panel, earthing wire
shall be dual color multi-strand soft copper
2
conductor more than 16 mm
MB D 3 120 385- - -
Number of poles: 1P, 2P, 3P, 4P
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
Single pole structure, single pole or three
poles combined SPD available.
SPD has built-in disconnector, when SPD
is invalid due to overheatingor breakdown,
the disconnector can automatically separate
SPD from the network, meanwhilesendan
indication signal.
The visiblewindow show white colorinnormal
service, if to be separated fromnetwork, it
will show red color. It can adopt Kelvin wiring
mode. Large current carrying capacity, fast
response time, low residual voltage.
Model and specification
Voltage protective level
<25
IP20
Maxi discharging current
Nominal discharging current
Response time
Application
Protection grade
Indication of invalidation
420
2.5
275
1.8
420
2.8
275
2.0
420
3.0
275
2.0
Protection for in line
Aging invalidation: white: Normal, red: invalidation
420
2.5
275
1.5
420
1.8
275
1.5
80 100 120654515
40 50 6030155
MBD3-80 MBD3-100 MBD3-120MBD3-65MBD3-40MBD3-15
420
1.2
275
1.0
Maxi continuous operating
voltage
69
46
35
36
87
57
45
Uc: 385V
Imax:120kA(8/20)
In: 60kA(8/20)
Up : 3.0kV
Ref.8144-03-03
Rec
Rec
Imax:40kA
Uc: 420V
In : 15kA
UP:1.8kV
MBD3-40
18
87
58
45
MBD3-40
Outside Size Fig
189

14. MBD4-40
Installation
L L L N
72
100
90
45
66
51
35
MBD4-C
Uc :
In :
Imax:
Up :
~385V
20kA
40kA
1.8kV
Surge Protective
Device
MBD4-C
Uc :
In :
Imax:
Up :
~385V
20kA
40kA
1.8kV
Surge Protective
Device
MBD4-C
Uc :
In :
Imax:
Up :
~385V
20kA
40kA
1.8kV
Surge Protective
Device
MBD4-C
Uc :
In :
Imax:
Up :
~385V
20kA
40kA
1.8kV
Surge Protective
Device
Outside Size Fig
Product introduction Model and Signification
MBD4 series surge protective device
(hereinafter called SPD) is sui-tably used
in the IT, TT, TN-C, TN-S, TN-C-S and etc
power supply system of AC50/60Hz, rated
voltage up to 380V, to protect from direct
and indirect lightning impulse and other
transient over voltage.
SPD meets with GB18802.1/IEC61643-1
standard.
MBD4 Series
Surge Protective Device
Operation Elements
SPD as only one side of terminals, able to
preventfrom being electric touching, indoor
fixedly mounted, limiting voltage.
SPD has built-in disconnector, when SPD
is invalid due to overheating orbreakdown,
the disconnector can automatically separate
SPD from the network, meanwhile sendan
indication signal. Thevisiblewindow show
white colorin normal service, if to be sepa-
rated from network, it will show red color.
Fast response time, low residual voltage.
To be mountedin joint of LPZ1 or LPZ2 zone,
adopts 35mm standard mounting rail. The
cross sectional area of multi-strand soft
2
copper conductor: 2.5~ 35 mm .
Every pole of SPD shall be protected by fuse
or mini circuit breaker.
The Contact
SPD can provide the NOcontact for remote
communication, if one or more modules of
SPD is invalid, the NO andNC contact will
be closed and send fault information.
MB D 4 40 385- -
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
Technical Parameter
Remarks
Remote signal Function
Application
Indication of invalidation
Protection grade
Response time
Nominal discharging current
Maxi discharging current
Voltage protective level
Maxi continuous operating voltage
Model and specification
Other maxi continuous working voltage Uc (AC) can be supplied if required.
<25
IP20
Protection for in line
Can also picking
Aging invalidation: white: Normal, red: invalidation
20
10
40
20
420
1.8
275
1.2
420
2.0
275
1.5
MBD4-20 MBD4-40
190

15. MBD5-120
Outside Size Fig
MBD5 Series
Surge Protective Device
Model and SignificationProduct introduction
MBD5 series surge protective device
(hereinafter called SPD) is suit-ableforthe
IT, TT, TN-C, TN-S, TN-C-S and etcpower
supply system ofAC 50/60Hz, rated voltage
380V andbelow, to protect from lightning
impulse and other transient over voltage,
it is applica ble in class I lightning proof
system where there has higher danger
of lightning strikes As per the conditions
of IEC61643-1:1998-02 standard, Class I
surge protective device, it is category B
surge protective device.
SPD meets with GB18802.1/IEC61643-1
standards.
Operation Elements
Fast response time: less than 25ns
Low limited voltage
Large current carrying capacity
Normal state: white color, invalid state:
red color
Kelvin wiring mode available.
Installation
Category B surge protective device(SPD),
used in the connection between equal
potential electrodes while thunder occur.
Generally to be installed in low voltagemain
incoming distribution panel, overhead
incoming.
To adopt 35mm standard mounting rail for
SPD mounting.
When to place an order, please indicate the
model, specification and quantity of SPD.
2
It shall adopt 10~35mm copperconductor
to be connected with SPD, earthing wire
shall be dual color multi-strand soft copper
2
conductor more than 16mm .
The Contact
SPD can provide theNO contact for remote
communication, if one or more modules of
SPD isinvalid, the NO andNC contact will
be closed and send fault information.
MB D 5 120 385- - -
Number of poles: 1P, 2P, 3P, 4P
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
Surge Protective Device
MBD5-120
Uc~:
In(8/20):
Imax(8/20):
Up:
385V
60kA
120kA
2.5kV
36
90
RED:TO BE REPLACED
L(N)
35
65
Technical Parameter
<25
IP20
MBD5-100
50
Model and specification
Response time
Application
Protection grade
Remote signal Function
Indication of invalidation
Remarks
Can also picking
420
2.5
385
2.3
275
1.8
420
2.5
385
2.3
MBD5-120 MBD5-150
320
2.0
275
1.8
420
3.5
385
3.2
320
2.5
275
2
60
100 120 150
80
Primary protection for in line
Other maxi continuous operating voltage Can be customizedUc175,440,690V
Nominal discharging current
Maxi discharging current
Voltage protective level
Maxi continuous operat ing
voltage
Aging invalidation: white: Normal, red: invalidation
191

16. MBD6-40
MB D 6 40 385- - -
Number of poles: 1P, 2P, 3P, 4P
Maxi continuous operating voltage Uc(V)
Maxi discharging current Imax(8/20 s)(kA)
Design No
Surge Protective Device(SPD)
Enterprise code
Accessories: X-the contact
Installation
MBD6-20 is mounted between LPZ1 or
LPZ2 zone and LPZ3 zone. The cross
sectional area ofmulti-strand soft copper
2
conductor to be connecte d: 2.5~ 35mm .
It is used in distribution boxes of living
house, computer center, communication
equipment, electronic equipment and
control equipment ornearest socket box.
MBD6-40 is mounted between LPZ0Bor
LPZ1 zone and LPZ2 zone. The cross
sectional area of multi-strand soft copper
2
conductor to beconnected: 2.5~ 35mm .
The Contact
Contact for remote communication can be
provided for SPD, thecontact has one pair
for transferring, 11 as middle position, 12
and 11 opened under SPD acting, 14 and
11 closedunder SPD acting, 11 and 14 as
NO contact . If one or more of modules of
SPD is invalid, the contact will be closed
and send fault signal.
Outside Size Fig
Technical Parameter
Model and specification
Voltage protective level
Response time
Protection grade
Application
Remote signal Function
Indication of invalidation
Remarks Other maxi continuous operating voltage Canbe customized
Can also picking
Protection for in line
Aging invalidation: white: Normal, red: invalidation
IP20
<25
60
30
40
20
20
10Nominal discharging current
Maxi discharging current
Maxi continuous operating
voltage
MBD6-60
420
2.5
385
2.0
MBD6-40 MBD6-20
320
1.8
275
1.6
420
2.0
385
1.8
320
1.6
275
1.3
420
1.8
385
1.5
320
1.3
275
1.2
MBD6 Series
Surge Protective Device
Model and SignificationProduct introduction
MBD6 series surge protective device
(hereinafter called SPD) is suitably used
in the TT TN-S TN-C IT TN-C-S and
etc power supply system of AC 50/60Hz,
rated voltage 380V and below, to protect
from direct and indirect lightning impulse
and other transient over voltage.
SPD meets with GB18802.1/IEC61643-1
standard.
MBD6-C
Uc : ~385V
In : 20kA
Imax: 40kA
Up : 1.8kV
N L L L
18
72
90
45
63
49
35
Surge Protective
Device
MBD6-C
Uc : ~385V
In : 20kA
Imax: 40kA
Up : 1.8kV
Surge Protective
Device
MBD6-C
Uc : ~385V
In : 20kA
Imax: 40kA
Up : 1.8kV
Surge Protective
Device
MBD6-C
Uc : ~385V
In : 20kA
Imax: 40kA
Up : 1.8kV
Surge Protective
Device
192

17. MBX-R/L24
MBX-R/L Series
Surge Protective Device
MBX-R/ L surge pr otect or prot ect un-earthed dat a (asymmetrica l, suspended) cable that used fordual wire electronicmeasurement
and control and the voltage shall not exceed 110V, frequency not more than 2MHz, to preventdata cabl e and relate d equipment from
being damaged due to surging over-voltage caused by lightning or traveling wave. It is mounted between LPZ1 LPZ3.
MBX-R/L two-stage circuit consists of gas discharging tube, piezore-sistance and clamping diode, with advantages of large
discharging capacity, short clamping time and low protection level.
MBX-R/L protector can be mounted on 35mm rail of different sta ndard switching box or distribution box. It does not needscrews for
connecting with terminal.
Function and application
62
50
35
18
91
45
IN
OUT
1 PE 2
4 PE 3
MBX-L24
:
:
:
:
:
24V
27V
200mA
5kA
80V
UN
Uc
IL
In(8/20)
Up
Technical ParameterOutside Size Fig
MBX-R/L
1 3
5V
7V
13V
6V
9V
20V
12V
15V
30V
24V
30V
51V
48V
51V
100V
0.2A
1.0A
Arrester
10KA
Mounting position
100 H
15
Nominal voltage
Max. continuous operating
voltage
Voltage protective level
Rated loading current of
category R
Rated loading current of
category L
Nominal discharging current
Series connected resistance of
each line of category R
Series connected inductance
of each line of category L
Cross sectional area of
connected conductor
Peel-off length for the wireto
be connected
Color
2
0.14-2.5mm
6-7mm
Grey
Material Fire resistant reinforced PC
Applicable standard GB18802.2 IEC61643-21
193

18. MBX-N
MBX-N Series
Surge Protective Device
Product introduction Model Signification
MB X - N /
SPD used in signal control line of data transmission.
Network Surge Protector
Enterprise code
Protection Port 8 16 24
Technical Parameter
MBX-N 12V 5KA(8/20) <35V <0.2VdB 10ns RJ45
Model and
specification
Rated
voltage
Protective
level
Insertion
loss
Response
time
Interface
mode
Flux
Installation
This surge protect ive device will be series connected between circuit and protected
equipment, outp ut terminal of SPD shall be connected with input of equipment to be
protected,the circuit distanceconnected shall beshort as possible, this can get best
protection effect.
The PE line shall be reliably connected with earthing line of lightning system, this
leading wire shall be shortest as possible, to get good protection effect.
If this SPDdischarged the surgingmany times andtake on invalidation, please replace
it on time, to ensure continuous safety.
This product belong to termination protection device, due to uncertainty of lightning
and surging, itshall cooperate well with anterior protectionappliance inconsideration
of working conditions, in order to get good protection effect .
Lightning injury mainly is by the way of
the line of power supply orsignal circuits
for connected equipment.Cons equen tly
it is necessarythat it shallprotect power
line or circuits effective ly from being
damaged or personnel injury.
MBX-N series surge protective device,
adopts international latest gas discharging
tube, TVS tub e, solid dischargingtube of
quickerresponse, good non-linear curve,
large flux, as the protective elements,
assembled with auxiliary components,
via optimized production technology.
Which lessen the output residual voltage.
When equipment happento over-volt age,
this SPD quickly respond leading over-
current discharged into ground, limiting
the line voltage within permissible value,
and finally to protect personnel safety
and equipment from being damaged.
The product meetswith IEC61643-1 and
related standards.
Product purpose
Surging protection for computer, network
station, data exchanging network can avoid
the damage due to inductive voltage and
surging voltage coming from signal circuit.
194

19. MBX-DB9/25MBX-Z
Product introduction Product introduction
Computer network lightning protector is mainly usedto prevent
lightning (overvoltage) from access to equipment via network
circuits, widely serving for the network equipments in banking
system, communicationsystem, traf fic and transportation system,
petrochemical control system and etc.
Characteristics
High surge current passing by; multi-step protected.
Built-in fast semi-conductiveprotective element, quickresponse
speed and lower residual voltage.
Low inserting loss, ensure circuit working safely.
Core element adopted international famous products, with
excellent performances.
It is to be easy installed, suitable for different standard ports.
Operation instruction
This product is of series connected mode.
Please choosethe right protector withsameport of the equipment
to be protected.
In the protector, "IN" isinput terminal, "OUT"is output terminal,
input terminal connected with exterior wires, output terminal
connected to input side of the equipment to be protected.
PE line ofprotector must beconnected solidl y to earthing wire
of lightning proofsystem, connected wire shall be short, large
and straight.
During servicing, the protector shall beinspected periodically,
if some fault happen, it shall be repaired or replace on time.
Earthing resistance not larger than 4Ù.
Laypeople do not remove.
Monitoring Comprehensive
Surge Protector
MBX-Z Series
Model Signification
220 2MB X - Z /
SPD used in signal control line of data
transmission.
Enterprise code
Two in One, Three in One
Power supply voltage
Monitoring comprehensive surge protector
MBX-Z series surge protective device for AC/DC supply
monitoring vidicon is multifunction integrated protector (3 in 1),
can protect the circuit of power supply, video and audio, Pan-
tilt control invidicon from surging, maximumdischarging current
up to1000A,to limit voltagedown to 15V, response time:picosecond
class. It canfully protect thelatest hi-techmonitoring equipments.
Multifunctional surging over-voltage protection
-12
Large capacity: 1000A Quick response: (10 s)
3 in 1 designed. Low loss
Technical Parameter
Model and specification
Functions
Nominal discharging current
Maxi continuous operating
voltage
Load current
Limiting voltage
Maxi discharging current
Maxi continuous operating
voltage
Limiting voltage
Nominal discharging current
Maxi discharging current
Max. Transmission rates
Maxi continuous operating
voltage
Limiting voltage
Nominaldischarging current
MBX-Z
Comprehensive surge protector
Power protection parameters
8V
15V
5kA
PTZ control signal protective
parameter (only Threein One type)
10MHz(Insertion loss<0.2dB)
320V
10A
900V
5kA
10kA
40V
5A
75V
5kA
10kA
8V
15V
5kA
10kA
Video protection parameters
MBX-DB9/25 Series
Port Surge Protector
195

20. MBX1-RJ11/45
IN
OUT
79(105)
25
25
25
40
RJ45 RJ11
Outside Size Fig
MBX1-RJ11/45 Series
Surge Protective Device
Model and SignificationProduct introduction
MBX1-RJ11 series signal surge protectiv e
device (hereinafter calledSPD)is suitable
for the circuit of Modem, DDN special line,
facsimile, telephone and etc, to protect
communication equipment from being
damaged by lightning impulse and other
transient over voltage.
MBX1-RJ45 series signal surge protective
device (hereinafter calledSPD)is suitable
for the circuit of Ethernet,localareanetwork
(LAN), Tokenring, server, routers,Hub,broad
band, the functions of rough prote ction,
fine protection, precise protection can meet
with differen t requirements for protection
zone against surging, to protect RJ45
inter face and communication equipment
from being damaged due potential rise up
or over-voltage result from circuit induction.
Installation
To be mounted in the interface between
LPZ1 to LPZ3.
To be mounted in the interf ace of RJ11,
as required, it can form multiple poles or
multi circuit lightning proof device, in the
joint of PZ2, connected with multi-st rand
2
soft copper conductor of 2.5~35mm .
Operation Elements
MBX1-RJ11: Small cross sectional area,
low inductive voltage drop,dual protection
against over-voltage and overloading,
outer shell is made of shielded Al.
MBX1-RJ45: Input and output by RJ45
male/ femaleconnector, easy tobe connected
and assembled, small crosssectional area,
low inductive voltagedrop, dual protection
against over-voltage and overloading,
outer shell is made of shielded Al.
Working vol tage: 5-DC5V, 12-DC12V, 24-DC24V,
48-DC48V, 110-DC110V
Frequency bandwidth: C-2MHz, D-10MHz, F-100MHz
Interface mode: (RJ11/RJ45)
Design No
SPD used in signal control line of data transmission.
Enterprise code
MB X - /1
Technical Parameter
Model and specification
Network service voltage
Maxi continuous operating
voltage
Voltage protective level
Attackdischarging current
Nominal discharging current
Frequency bandwidth
Insertion loss
Protective circuit
Response time
Invalid factor
MBX1-RJ11
AC110
DC110
DC150
500
2MHz
0.5db
3, 4
Communication circuit Short connected
with ground, or communication circuit opened.
1
100MHz
0.3db
1, 2, 3, 6
600
3
DC5
DC6
40
DC12
DC15
60
MBX1-RJ45
DD5 ED5 DD12 ED12
196

21. MBD-W MBD-T
MBD-W Series
Surge Protective Device
Product introduction
MBD-W series wireless signal surge protective device, designed
according to IEC standard, divi ded into interna tional F10 head,
ANSI F10 head, BNC head, N mode, L16, SL16, TNC and etc
coaxial interface, suitable for satellite ground station of satellite,
wireless communication equipment as GSM, CDMA, microwave
station and etc system and wireless broadnetwork and etc coaxial
communication equipment, it can protect electronic communication
equipment from being damaged by over voltage due to lightning
strike, inductive over-voltage, and static discharging.
Protection against surging over-voltage incommunication circuit.
Multiple interfaces for choice, easy to be installed.
Good hi-freq characteristics.
Low voltage standing wave rate.
Large carrying capacity.
Micro insertion and cast loss.
Technical Parameter
MBD-W
1.2
300W
0.1dB
BNC/N/TNC/SL16/L16
DC30V/DC68V/AC130V/AC280V
10kA
50/75
Model and specification
Interface mode
Maxi continuous operating
voltage
Nominal discharging current
Characteristic impedance
Power
Insertion loss
Standing wave rate
24V
30V
10kA
50/75
0.1dB
120V
Communication circuit short
connected with ground
Outer shell earthed
MBD-T Series
Surge Protective Device
Product introduction
MBD-T series coaxial communication signal surge protective
device, designed according to IEC standard, divided into F10
head, N head,BNC head and etc coaxial interface, suitablefor
CATV, monitoring, Video communication equipment. It can
provide the protection for cablet and thicknet equipment.
Protection against surgingover-voltage incommunicationcircuit.
Wide bandwidth, low insertion loss.
N/F/BUG bidirectional interface.
Free of maintenance.
Fast response.
Technical Parameter
MBD-TModel and specification
Interface mode
Maxi continuous operating
voltage
Nominal discharging current
Characteristic impedance
Insertion loss
N/F/BINC/TNC
Working voltage
Limiting voltage
Invalid factor
Remarks
197

22. MB380-20
Product introduction Technical Parameter
MB Series
Box Surge Protective Device
MB series lightning proof box is designed
according to IEC and national standards,
it has theindicators of invalidation of lightning
proof function, earthing invalidation, the
circuit auto-breaking protection device
against the invalidation of lightning proof
function, the key part of lightning proof
box is high efficient lightning proof module,
each line of discha-rging capacity is20KA
to 80KA, voltageprote-ction level at nominal
discharging current less than 2.5KV, response
time of lightning dis-charging less than
25ns,it can effectively eliminate thesurging
over- volta ge and protect the electronic
equipment.
MB series lightning proof boxhas excellent
lightning proof effects,used in single/three
phase power source system, where the
equipmentneedhigh lightningproof function.
MB series lightning proof box is wall hung
mounted, generally usedfor the distribution
panel without mounting space.
1. High lightning impulse discharging.
2. Circuit auto breaking protection against
the invalidation oflightning proof function.
3. Lamp indicator for the invalidation of
lightning proof function.
4. Discharging time very short, nanosecond
class.
5. Lamp indicator for earthing invalidation.
6. Low voltage protective level.
7. Counter for lightning strikes (optional).
8. Single or three phases for choice.
MB380-20 MB380-40 MB380-60 MB380-80Model and specification
SPD interface classifications
SPD kinds
Maxi discharging current
Limiting voltage
Protection mode
Maxi continuous operating
voltage
Conductor to be connected
Indication for invalidation,
Green as Normal state,
Red as Invalidation
Working temperature
Protection grade of shell
Product size (L x W x H)
Single interface
Limiting voltage type
L-N-PE
385V
2
10-16mm
LED alarm
-40/85
Ip50
235*165*70
<1500V <1800V <2000V <2500V
>20KA/ Each line >40KA/ Each line >60KA/ Each line >80KA/ Each line
Outside Size Fig
165mm
118mm
210mm
235mm
67.5mm
118mm
198

23. MBD-S
MBD-S Series
Explosion Proof Surge
Protected Power Source Box
Product introduction
Classification
Classif ied according to system: Single
phase, three-phase four-wire,according
to applicable site: B type, luxury type.
Power supply incoming distribut ion box,
downside main auto switch (fuse).
C The distribution box that the length of
wire connected to user incoming power
supply distribution boxis more than 15m,
downside main auto switch (fuse).
D Downside main auto switch (fuse) of
terminal box.
Classified according to voltage limiting
level: 1-2kV, 2-1.5kV, 3-1kV.
Classified according to connection mode:
shunt connection, series connection (2-
step, 3-step).
Classified according to accessory:A, B,C
Operation Elements
The SPD in lightning proof box has the
ind-ication device for invalidation, Green
mean normal service, Red means SPD
invalidation.
The breaker (fuse) in lightningproof box
will assure the SPD beingseparated from
net-work if PSD is invalid.
Alarm is the extra necessary device for
sho-wing the invalidSPD. It canproduce
sound and optical signals when SPD is
invalid, if the fault can't be eliminated in
time, it canpush"STOP"button to terminate
annunciator sounding. But red indicator
still shows thefault state (shining). If the
fault is notswept away after 24 hours, the
annunciator will sound again. User can
choose such device as required.
MBD-S series power supply lightning
proof device (hereinafter called SPD box)
is suitable forAC 50/60Hz,rated voltage
380V power supplysystem, toprotect from
direct or indirect lightning impulse or other
transient over voltage.
SPD boxmeets with GB18802.1,IEC61643-
1 and YD/T1235.1 standards.
Model and Signification
MB D - S - -
Lightningproof modules 1,2,3,4,
Lightningproof box
Surge protective device
Enterprise code
Maximum continuous operating voltage
Accessories: A: N/A, B: Sound and optical
annunciator, C: Fuse, D: Sound & optical
annunciator and fuse.
Loading capacity: as per main technical
specifications.
Voltage limiting level: 1-2kV, 2-1.5kV, 3-1kV
Mounting category: A: User incoming power
supply distribution box, downside main
breaker (or fuse).
B: The distribution box that the length of
wire connected to user incoming power
supply distri-bution box is more than 15m,
downside main auto switch (fuse).
C: Downside main auto switch (fuse) of
terminal box.
Electric connection: 0-shunt connection,
2-2 step series connection, 3- three-step
series connection
Technical Parameter
Model and specification MBD-S-100
380/220
385
2.02.5 1.8
MBD-S-60 MBD-S-40
60100 40
Network service voltage
Maxi continuous operating
voltage
IP20
25
Voltage protective level
Maxi discharging current
Counting for lightning strikes
Response time
Protection grade
Application
Lowest counting current: 1KA, maxi 99times.
Primary protection for power supply
Secondary protection for power supply
199

24. MBD-C
Product introduction
MBD-C Series
Muiti-functional Power
Strip With Surge Protection
MBD-C series receptacle type surge
protective device (hereina fter called SPD)
is suitably used inthe powersupplysystem
of AC 50/60Hz, rated voltage up to 220V,
as the secondary protective device for
equipment, to protect from direct and
indirectlightningimpulse and othertransient
over voltage, and absorb wireless/radio
interference and etc circuit surging, extend
the working life of equipment, save the
long-term operating cost.
SPD meets with GB18802.1, IEC61643-
1-1 standards.
Operation Elements
Receptacle type SPD cooperated with
socket, Built -in over-current protection unit,
prevent fire danger caused by accident.
Rear bu tterfl y hole, it can be mounted
on desk or wall.
Wrong earthi ng wire, indication of inverse
insertion, assure reliable earthing, avoid
incidental electric leakage.
Wrong earthing wire, indication of inverse
inser tion, prevent inverse insertion
between phase and earthing lines.
Short circuit indication, dual colorindication
for different states, red and green color.
Outer shellmaterial: reinforced fire resistant.
PBT, incompliance with UL94-5V standard.
MB D C- 4 2- -
Surge protective device
Enterprise code
International 2 Pin number
International 3 Pin number
Lightningproof socket
Model and Signification
Indicate when placing an order
Please indicate the model, specification and quantity of SPD.
The following documents and accessories will be delivered together with goods.
Certificate of qualification 1 copy (each product) Operation manual 1 copy
(each product)
Technical Parameter
Protection grade
Response time
Nominal discharging current
Maxi discharging current
Voltage protective level
Maxi continuous operating voltage
Power source for network service
suitable for power supply systems
Model and specification MBD-C
TT/TN/IT
220V
330V
1kV
10kA
5kA
25ns
IP20
200

25. MBD-Z-300
Operation Elements
Non-electronic type, long working life,
only when lightning happen, the lighting
rod will beexcitedby itself, withprospective
disch-arging function, forwardly guide
the lightning system, after to withstand
repeated lightning discharging, it still has
such continuity ofelectric performances.
NB: The above data is calculated on basis of lightning rod height H = 5m.
Calculation formula of protective radius at prospective self-discharging
If prospective discharging time: T, then prior lead-up distance L=V* T, according
to calculation methods specified in NFC-17-102 standard, protective radius Rp come
from the following formula:
Representative= h(2D-H)+ L(2D+ L) h 5
D distance of lightning strike, determined by the grade of objects to be protected, for
category III object, D equal to 20m, 45m, 60m respectively.
H height from pin of lightning rod to the surface of protected object
T come from calculation and evaluation (as above sheet) V=106m/s L=V* T
MBD-Z-300 Series
Pre-discharge
Lightning Rod
MB D Z 300- --
Lightning passing curr ent
Pre-discharge lightning rod
Surge protective device
Enterprise code
Product introduction Model and Signification
The strength of electric field between
central collection rod and exciter in the
lightning rod rise up quickly, and lead to
atmosphere ionization in the top end, it
will discharging inshorte st time accurately,
due a great deal of electricion existing,
which weaken the domino offect from
natural Corona, produce a prospective
discharging passage,it canquickly, safely
lead the lighting surging into ground.
Lightning passing current
Technical Parameter
Model and specification
Ground resistance
requirement
Wind resistant strength
Height
Weight
Characteristics
Prospective discharging
time T
MBD-Z-300
400kA
10
40m/s
67cm
8.5kg
52 s
Pre-discharge
lightning type
5
6
7
8
10
15
20
42
42
43
43
43
44
45
5
7
8
10
15
20
45
57
58
59
60
63
65
70
5
8
10
15
20
45
60
64
67
68
72
75
83
85
MBD-Z-300
Sheet of height
from pin of
lightning rod to
ground versus
protective
radius (m)
Classification
Table of cross-refer Height and protect Radii(meter)
Category I
protective
height
D=20m
Related
protective
radius (m)
Category II
protective
height
D=50m
Related
protective
radius (m)
Category III
protective
height
D=60m
Related
protective
radius (m)
201

26. Surge Protective Device
The appliance used to limit transient over voltage and dis charge
the surging current, it includes one of non-linear element at least.
Impulse Current
It determined by current peak value and electric charge Q, it shall
be performed according tothe program for test of acting load. It is
used for SPD classification of Class I test.
Maximum Discharge Current Forclass Test
Passing through SPD, the peak value of current with 8/20 wave,
determined by the program for Class II acting load. Imax larger
than In.
Maximum Continuous Operating Voltage
Maximum AC virtual voltage or DC voltage allowed to be applied
on SPD continuously, the value equal to rated voltage.
Voltage Protection Level
It indicates the performance of SPD limiting the voltage between
terminals being connected. The value can be selected from the
sheet of prior values. This val ue shall be larger than highest
limited voltage.
Explanation Of SPD
Technical Term
Voltage Switching Type SPD
SPD that it shows high impedance when there has no surging, and
becomes low impedance while surging voltage occurs. Voltage
switching type SPD generally composed of discharging gap, gas
discharging tube, thyratron (silicone controllable rectifier) and
three-ending bidirectional silicone switching element. Sometimes
it also call "short circuit type SPD" .
Voltage Limiting Type SPD
SPD that it shows high impedance when there has no surging, but
the impedance will decrease gradually while surging current and
voltage rise up. Common non-linear element: piezoresistance,
and clamping diode. Sometimes it also call "Clamping SPD".
Combination SPD
SPD constructed of voltage switching and voltage limiting elements.
The characteristics curve can take on the characteristics of voltage
switching or limiting type, or both.
Modes Of Protection
Protective element of SPD can be connected between phase line
to phase line (L-L), phaseline to earth (L-PE), phase line to neutral
line (L-N), neutral line to earthing line (N-PE) or their combination.
These connections call protection modes.
SPD Disconnector
The device that isolates SPD from power supply network
(interior and / or outer).
Nominal Discharge Current
The 8/20 wavecurrent peak that passing by SPD, used for grading
SPD under class II test, or prospective treatment of SPD class I,
II test.
202