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Guangxi Dikai Sci&Tech Co., Ltd.

SPD, DC Surge Protection Device, Surge Protection Device for PV manufacturer / supplier in China, offering Dkg-20 DC Surge Protective Device, RS485 Pluggable DC 200V Analog Signal Line Lightning Arrestor, DIN Rail 2p Single Phase AC 220V Power Voltage Protector and so on.

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Dkg-20 DC Surge Protective Device

FOB Price: US $15.5 / Piece
Min. Order: 10 Pieces
Min. Order FOB Price
10 Pieces US $15.5/ Piece
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Port: Guangzhou, China
Production Capacity: 50000/Month
Payment Terms: T/T

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Basic Info
  • Model NO.: DKG-20
  • Structure: Protective Gap
  • Application: AC/DC System
  • Operation Voltage: Low Voltage
  • Material: Plastics
  • Brand: Dikai
  • Nominal Discharge Current in(8/20): 20ka
  • Protection Mode: +-PE, - -PE, + - -PE
  • Respond Time Ta: Less Than 10ns
  • Flame Retardant Rating of Outer Shell: UL94-V0
  • Trademark: dikai
  • Origin: China Nanning
  • Type: Power Source Arrester
  • Installation: Parallel Arrester
  • Size: Small
  • Shape: Cuboid
  • Certification: ROHS, ISO9001, CCC, Ce
  • Maximum Discharge Current Imax(8/20: 40ka
  • Working Voltage: DC1200V
  • Voltage Protection Level up: Less Than 3.5kv
  • Indication Method: Indication Window,Turn Red When Malfunction
  • HS Code: 8536300000, 8536300000
  • Transport Package: According to Customer Requirement
Product Description
DKG-20 3P DC surge protective device is a parallel type module DC power surge protection device(short for SPD), which is dedicated to the lightning protection of photovoltaic DC power distribution system. Adopted high temperature and resistant flame retardant plastic shell, with the features of good sealing, good appearance, easy installation, dust-proof, anti-corrosion and flame retardant, this product can work stably under a harsh environment. This product is used for lightning protection of DC power distribution equipment, such as photovoltaic combiner box, photovoltaic DC power distribution cabinet and grid tie inverter.
It is designed as module with 35mm din rail mounting. It has working indication window in each line. When working indication window turns red, the SPD breaks down. With temperature control circuit breaker and built-in over current protective circuit, this modular SPD can automatically release to avoid fire danger when it breaks down. The optional remote alarm function is convenient for remote monitoring and automated management. The main module and the base are replaceable. It can be used for lightning protection of  +--PE,---PE.
2. Application Scope
DKG-20 3P DC surge protective device is dedicated to the lightning protection of photovoltaic DC power distribution system.
Product NameDC Power Surge Protective Device
ItemDKG-20 3P
SPD TypeOne Port (Parallel)
Applicable Power Supply SystemPV DC Power Distribution System
Maximum Continuous Operating Voltage UcDC1200V
Rated Voltage UnDC1000V
Nominal Discharge Current In(8/20μs)20kA
Maximum Discharge Current Imax(8/20μs)40kA
Voltage Protection Level Up<3.5kV
Leakage Current≤30μA
Response time tA≤10ns
Indication MethodIndication Window: turns red when it breaks down.
Maximum Wiring Connection RangeBVR25 mm2
Method of Installation35mm Din Rail Mounted
Material of ShellPA6
Flame Retardant Rating of Outer ShellUL94-V0
Protection Level of Outer ShellIP20
Working Temperature-25ºC~+70ºC
Relative Humidity≤ 95%RH
Installation LocationFront end of equipment to be protected
Protection Mode +--PE,---PE

5.Remote Alarm
The product can be matched with remote signaling alarm function.When the surge protective device is normal, COM is public output port, the NC is normally closed dry contact output, and NO is normally open dry contact output. The wiring diagram of remote alarm is shown as below:
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