This circuit breaker operating mechanism consists of two parts: the circuit breaker operating mechanism and the disconnector operating mechanism. It is compatible with our company's GRHV-12/630 environmentally friendly cabinet-mounted disconnector circuit breaker. Its compact structure and interlocking mechanism meet the five protection requirements: preventing the disconnector and disconnect plug from opening and closing while on load; preventing accidental opening and closing of the circuit breaker, load switch, and contactor; preventing closing of the circuit breaker, load switch, etc. while the grounding switch is in the closed position; preventing accidental closing of the grounding switch while energized; and preventing accidental entry into a live compartment.

The operating mechanism complies with relevant standards such as GB1984-2014, GB/T11022-2020, GB3804-2017, and GB3906-2020. Custom operating mechanisms are also available to tailor the circuit breaker to meet specific requirements.

Environmental Condition

Ambient air temperature upper limit +40°C to -30°C;
Altitude not exceeding 2000m. Wind speed not exceeding 35 m/s;
Daily average relative humidity not exceeding 95%, monthly average not exceeding 90% (at +25°C);
Operation location requirements: No fire or explosion hazards, no severe contamination, no corrosion, and no severe vibration.

Supporting Air-Insulated Circuit Breaker

This model is the environmentally friendly, cabinet-type, bottom-disconnecting circuit breaker GRHV-12/630. It's an environmentally friendly, top-mounted disconnecting circuit breaker compatible with the operating mechanism described in this article. This product features a single-piece construction with a disconnector switch with visible disconnect ports mounted below and a circuit breaker mounted above. Therefore, the matching operating mechanism consists of two parts: the disconnector operating mechanism and the circuit breaker operating mechanism above.