House PV Solar System Arrester Surge Protector SPD DC1000V 20~40KA Surge Protective Device

1.Introduction

DKG-20 3P photovoltaic 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 photovoltaic DC surge protective device is dedicated to the lightning protection of photovoltaic DC power distribution system.

 3. Technical Parameter

4.Installation Instruction

Installation Wiring Diagram

(The appearance in kind prevail)

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:

Remote Alarm Terminal Wiring Diagram

6. Details