ZW20A-12 outdoor boundary vacuum circuit breaker (boundary switch)

Overview

ZW20A-12 series outdoor high voltage boundary vacuum circuit breaker (hereinafter referred to as circuit breaker) is a three-phase AC 50HZ, rated voltage 12KV outdoor power distribution equipment, mainly used for breaking and closing the load current, overload current and short circuit current of the power system. The circuit breaker is suitable for substations, industrial and mining enterprises, urban and rural power grids for control and protection, and is suitable for places that require frequent operations and urban power grid automation distribution networks.

Environmental conditions for use

ZW20A-12 outdoor demarcation vacuum circuit breaker is designed for harsh outdoor environments and has excellent environmental adaptability:

1.Altitude adaptability: It can operate stably in areas below 3,000 meters above sea level and meet the power distribution needs in high-altitude areas.

2.Temperature tolerance:

Wide operating temperature range -40°C to +40°C

Daily temperature difference can reach 25℃

Adapt to the climatic conditions in most areas of my country

3.Bad weather protection:

Can withstand a maximum wind pressure of 700Pa (equivalent to level 10 wind force)

Tolerance to 100mm ice thickness

The pollution level reaches Class I standard

4.Installation site requirements:

It is prohibited to install in flammable and explosive places

Avoid chemically corrosive environments

Earthquake resistance up to 8 degrees

5.Special instructions: When used for a long time under extreme environmental conditions, it is recommended to take appropriate protective measures to extend the life of the equipment.

Main technical parameters