FZW20-12 outdoor vacuum isolation load switchDetailed product description：

The FZW20-12 outdoor vacuum isolation load switch is suitable for outdoor AC 50Hz, rated voltage 12kV power systems, with a rated current of 630A. It can open and close load currents, as well as open and close transformer no-load currents, overhead lines, cable lines, and capacitor banks at a certain distance. It has functions such as disconnection, isolation, connection, switching, and protection

FZW20-12 outdoor vacuum isolation load switch is suitable for overhead distribution lines in urban and rural power grids, railways, petrochemicals, etc. It should be noted that this product has the ability to interrupt short-circuit current. This product is an ideal electrical equipment for power distribution network renovation.

Project Name		unit	parameter
rated voltage		kV	twelve
rated current		A	400,630
4-second rated short-time withstand current (effective value)		kA	16,20
Rated short-circuit closing current		kA	40,50
Rated short-circuit breaking current (when equipped with a fuse)		kA	six point three
1-minute work pressure endurance	Dry test	kV	forty-eight
	Wet test	kV	forty-two
Lightning impulse withstand voltage (phase to phase and relative to ground)		kV	75/85
mechanical life		time	ten thousand

1. Adopting a vacuum arc extinguishing chamber, there is no risk of fire or explosion;
2. There is a clear visible fracture in the open state, which completes the function of the composite electrical device;
3. Fully open type. The vacuum arc extinguishing chamber is wrapped with high insulation performance silicone rubber, which does not require sealing, oil filling, or inflation;
4. Can be equipped with grounding switches and fuses;
5. Can interrupt short-circuit current;
6. There are various installation methods, mainly single pole and manual operation, as well as double pole installation and electric operation.
7. Suitable for overhead distribution lines in urban and rural power grids, railways, petrochemicals, etc.