summary
VZF-12R fixed vacuum load switch fuse combination device (hereinafter referred to as vacuum load switch) is the latest generation of vacuum switch equipment developed according to the special design concept and combined with the market demand. It is widely used in indoor armored air insulated switch cabinet, complying with GB3804-2004 GB16926-1997 and other standards.
Under the normal use condition, as long as it is within the technical parameters of the vacuum switch, it can ensure the safe and reliable operation in the power grid with the corresponding voltage level.

Normal use conditions
·Ambient temperature: maximum temperature + 40 ℃, minimum temperature - 25 ℃.
·Environmental humidity: human average relative humidity: ≤ 95, monthly average relative humidity: ≤ 90%.
·Daily average saturated vapor pressure: ≤ 2.2 × 10-3mpa.
·Monthly average saturated vapor pressure: ≤ 1.8 × 10-3mpa.
·Altitude: no higher than 1500m
·Seismic intensity: no more than 8 degrees.
·Applicable place: no dripping, no danger of still and explosion, no chemical corrosive gas, no violent vibration:
·If the use environment of the product exceeds the above regulations, the user can negotiate with our company to determine.

Model and its meaning


Main technical parameters


Outline and installation dimension