DK-50G Modular Power Supply series SPD is designed according to IEC standards. It complys with the requirements of GB18802.1-2011 Low-voltage Surge Protective Devices——Part 1: Surge Protective Devices connected to low-voltage power distribution systems——Requirements and tests. It is designed as module, with features of good seal ability and 35mm din rail mounted. With temperature control circuit breaker and built-in over currents protective circuit, the modular SPD will automatically release to avoid fire danger when it it breaks down. It consists of remote alarm connector for remote monitoring. It can be used for protection lightning of L-PE and N-PE.
35mm electrical din rail mounted.
High energy SPD.
10/350 us wave form.
No follow currents
Low residual voltage, quick responds, high discharge,capacity.
Applicable Power Supply System
Maximum Continuous Operating Voltage Uc
Nominal Discharge Current (8/20µs)
Maximum Discharge Current (8/20µs)
Impulse Current Iimp(10/350µs)
Voltage Protection Level Up
Power Frequency Current Breaking Capacity (Ifi)
Respond Time tA
Remote Alarm Function
Maximum Connection Wire Range
Method of Installation
35mm Din Rail Mounted
Material of Shell
Flame Retardant Rating of Outer Shell
Protection Level of Outer Shell
Low-voltage Three Phase General Power Distribution Cabinet
Low-voltage Single Phase General Power Distribution Cabinet
It is suitable for the low voltage main power distribution cabinet/box of buildings, and the equipments connected between three (single) phase AC power supply and system in parallel。