Overview

ZW20A-12 Series outdoor high-voltage isolation vacuum circuit breakers (hereinafter referred to as Circuit Breaker 1) are three-phase AC 50Hz power distribution equipment with a rated voltage of 12KV. They are primarily used for opening and closing the load current, overload current, and short-circuit current of the power system. Suitable for substation, industrial and mining enterprises, urban and rural power grids for control and protection purposes, and for frequently operated sites and urban power grid automatic distribution networks.

Application Environment

◆Altitude not exceeding 3,000m;

The surrounding air temperature limit is not to exceed 40°C, with a lower limit of not less than -40°C, featuring a daily temperature range of 25°C.

◆Wind pressure not exceeding 700 Pa;

◆Filth Level: N Grade: .

◆Ice thickness: 100mm

◆Installation Location: Areas free from flammable, explosive hazards, and chemical corrosion.

Earthquake magnitude does not exceed 8.