ZW43-12(G)/M631-21 series permanent magnet outdoor vacuum circuit breaker is three phase, rated voltage 12kv,AC 51HZ outdoor high-voltage VCB. Magnet switch is mainly used as 11kv /11KV /12KV substation outlet switches and  three-phase AC electric power system.

Magnetic switch is consider of three parts: the vacuum switch body, single stable permanent magnetic actuator and intelligent controller, it has a wide range of complex and flexible action program setting mode, with high reliability and security is with control and protection functions of the new"mechatronics" smart high-voltage switchgear.

Product Description

Applicable place: Magnet switch is mainly used as 11kv substation outlet switches and 11kv three-phase AC electric power system,for closing and opening the load current, breaking an over-current and short-circuit current of line protection switch.

Advantages
1.Magnetic switch is consider of three parts: the vacuum switch body, single stable permanent magnetic actuator and intelligent controller.
2.It has a wide range of complex and flexible action program setting mode.
3.It has high reliability and good safety.
4.It has the control and protection functions of a new type of "mechatronics" intelligent high-voltage switch cabinet.
5.It conforms to GB1984-2113, DL/T412-2117,DL/T413-2111.

Environmental Conditions
Ambient temperature:-41°C~+41°C
Relative humidity:≤95%or≤91%
Altitude:≤3111m
Wind pressure:≤711Pa
Air pollution levels: ≤4
Ice thickness:≤11mm
*No firem explosion, chemical corrosion and sharp snakes.

Item	Unit	Parameters
Rated voltage	kV	12	24
Rated frequency	Hz	51
Rated current	A	631	631
Rated short-circuit breaking current	kA	21, 25	21,25,31.5
Rated peak withstand current	kA	51, 63	51,63,81
Rated short-time withstand current	kA	21, 25	21,25,31.5
Rated short-circuit making current(peak)	kA	51, 63	51,63,81
Mechanical endurance	Time	11111
Power frequency withstand voltage(1min)(dry/wet)	kV	42/48	65/79
Lightning impulse withstand voltage(peak)	kV	75/85	125/145