DK-20 2P 2 Poles Single Phase 275V AC Power SPD Protector Surge Protection Device

2. Technical Parameter

3. Item Number

4. Application Scope

 It can be installed in the low voltage power distribution cabinet/box of buildings, to protect all kinds of power equipment in the single (three) phase power distribution system between LPZ1 and LPZ2. Such as:
 1) Low voltage general electricity cabinet and or distribution board of buildings.
 2) Outdoor electricity cabinet/distribution box.
 3) Applicable power supply system: TT, TN, IT.

5. External View

6. Installation and Caution

  1) DK-20 modular surge protective device(SPD) can be installed in any place of the single phase AC power line, and mostly be installed in power distribution boxes, power switches and sockets. It shall be connected with the power line in parallel, and shall adopt Kevin Connection, so as to lower the residual voltage.
  2) Strip away the surface rubber of input and output terminal, and expose the copper core. Insert the copper core into the hole of the SPD, and make it firm with a screwdriver.
  3) The cross-section of the grounding conductor connected with the module SPD indicating alarm shall be at least 16mm2, and the lead wire of the grounding conductor shall be shorter than 1m, and the shorter the better.