Introduction
  Din Rail 3 Poles DC 1200V 40kA PV Solar Surge Protector (short for SPD), is installed in the front end equipment of photovoltaic DC power distribution system. It can prevent the system and equipment from the permanent damage or  short interruption caused by induced over-voltage, over current, and other induced surge voltage. The product is designed, produced and tested according to GB18802.1 standard, and it is strictly in accordance with ISO9001 quality control 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.
  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.
Product Model
| Â Item | Specification | Protection Mode | Rated Voltage | Maximum Continuous Operating Voltage Uc | Voltage Protection Level Up |
| DKa-DC20 | DC120V | +---PE(3P) | DC120V | DC120V | Less than 0.8kV |
| DKa-DC20 | DC600V | +---PE(3P) | DC600V | DC700V | Less than2.0kV |
| DKa-DC20 | DC1200V | +---PE(3P) | DC1200V | DC1200V | Less than 2.5kV |
| DKa-DC20 | DC1500V | +---PE(3P) | DC1500V | DC1500V | Less than 3.5kV |
Technical Parameter
| Product | DC Power Surge Protective Device | ||
| Item | DKG-20/1200 | DKG-20/1500 | |
| SPD Type | One Port(Parallel) | ||
| Applicable Power Supply System | PVÂ DC Power Distribution System | ||
| Maximum Continuous Operating Voltage Uc | DC1200V | Uc 1500 | |
| Nominal Discharge Current In(8/20μs) | 20kA | ||
| Maximum Discharge Current Imax(8/20μs) | 40kA | ||
| Voltage Protection Level Up | <0.8kV | <2.5kV | |
| Indication Method | Indication Window: turns red when it breaks down. | ||
| Maximum Wiring Connection Range | PE BVR25 mm2 | ||
| Method of Installation | 35mm Din Rail Mounted | ||
| Material of Shell | PA | ||
| Flame Retardant Rating of Outer Shell | UL94-V0 | ||
| Protection Level of Outer Shell | IP20 | ||
| Working Temperature | -25ºC~+70ºC | ||
| Relative Humidity | ≤ 95%RH | ||
| Installation Location | Front end of equipment to be protected | ||
| Protection Mode | + - -Â - PE | ||
Wiring Diagram
Application Scope
 DKG-20 is dedicated to the lightning protection of photovoltaic DC power distribution system.
Warm Prompt
OEM & ODM are acceptable.
We can produce all kinds of SPDs according to customer's requirements.
About Dikai Company
 -More than 26 years specialized.
-25,000 square metres industrial park.
-More than 100,000 cases of lightning protection project services.
-Five series lightning protection products, more than 160 items.
-ISO ,OHSAS & CE certificated.
-CNAS National Laboratory.
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Guangzhou Chengwen Photoelectric Technology co.,ltd , https://www.cwstagelight.com