The VZF-12R built-in sealed vacuum load switch-fuse combination appliance (hereinafter referred to as vacuum switch) is the latest generation of vacuum switch equipment developed according to special design concepts and combined with market demand. It is widely used in indoor armored air insulated switchgear, and it conforms to GB3804-2004 GB16926-1997 and other standards.

The VZF-12R is equipped with a fixed-seal vacuum load switch-fuse combination. Under normal use conditions, it can ensure safe and reliable operation in power grids with corresponding voltage levels as long as it is within the technical parameters of the vacuum switch.

Environment Condition

Environment Condition

Ambient temperature: maximum temperature +40℃ , minimum temperature -25℃ .

Environmental humidity: Daily average relative humidity: ≤ 95%, monthly average relative humidity: ≤ 90%.

Daily average saturated vapor pressure: ≤ 2.2x10-3Mpa.

Monthly average saturated vapor pressure: ≤ 1.8x10-3Mpa.

Altitude: not higher than 1500m

Earthquake intensity: no more than 8 degrees.

Applicable places: No dripping water, no still and explosion hazard, no chemical corrosive gas, no severe vibration:

If the product usage environment exceeds the above regulations, users can negotiate with our company to determine.

Technical Data

Outline Dimension