This product has small volume, big through flow capacity, because we adopt high quality conducting and insulation material. The design is novelly, and it can be installed and connected without taking off cover. When electric network connect, users can switching from generation networking call.

Functional characteristics
SHK4 is provided with the electricity display double power load control switch box that is used in the industrial enterprise, and in the family distribution equipemnt for transformation electricity source line (not to be suitable for marking and breaking moto). It's rated voltage for AC380V(50HZ), DC220V, and 440V rated current to 400A.
Service conditions
No remarkable vibration and the impact vibration at site place

Scope of application
The highest altitudes is 2000m
Amtitudes temperatures should be less than 60º C, higher than -30º C
Air relative humidity should be less than 85%
The site place without and explosion hazard and gas and the dust to corrode metal and damage(the insulation including electric conduction dust) in the medium.