China wholesale Vcb Vacuum Circuit Breaker Supplier – Vacuum Circuit-breaker for VCB – Shone

ZN63(VS1)-12 series embedded poles type indoor high voltage vacuum circuit breaker is the first to achieve maintenance-free concept of a circuit breaker, Its high- life vacuum interrupter chamber as well as solid cast epoxy sealing technology applications to ensure an integrated solid-pole sealed maintenance-free, with high reliability using permanent magnetic actuator of the actuator to ensure maintenance-free, electronic control parts reject the traditional auxiliary switch and replaced by photoelectric proximity switches, and use the whole power and intelligent electronic control unit ensures that electronically controlled part of the maintenance-free.

The use of environmental conditions

1.Ambient temperature: not higher than +40℃ , not less than -15℃ (at -30℃ to allow storage and transportation). 2.Altitude: not exceed 1000m.
3.Relative humidity: daily average of not more than 90%, month average of not more than 95%.
saturated vapor pressure daily average of not more than 2.2×10-3 MPa, month average not more than 1.8×10-3 MPa.
4.Earthquake intensity: not more than eight.
5.No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.

General structure drawing and installation size

Mainly technical parameters