ZN12(3AF) vacuum circuit breaker is a type of indoor HV electric apparatus of rated voltage 12/40.5KV, three-phase AC 50/60HZ, produced by using the technic of Siemens.
The VCB features with simple structure, long mechanical life, strong breaking capability, multiple functions and convenient maintenance.It is safe from explosion, thus applicable in power house and substation to control and protect electricity distribution systems. In addition, it is especially applicable at essential position and in occassions with frequent operation.
1、Spring operation mechanism links to switchgear, and operate both by manual and motor.
2、The mechanism is equipped with operation recorder, power charging display, on-off indicator and anti-bounce device.
3、The propeller mechanism is fabricated on two pieces of sideboards and reliably interlocked with VCB.
4、The mechanism and the cubicle body is grounded firmly.