QA Series MCB Hydraulic‑Magnetic Circuit Breaker No Thermal Trip Unaffected by Ambient Temperature
QA series hydraulic‑magnetic MCB is a special type miniature circuit breaker, which uses hydraulic‑magnetic trip mechanism rather than traditional bimetal thermal trip. Different from thermal‑magnetic ordinary MCB, its overload tripping curve keeps stable regardless of surrounding temperature change, greatly reducing unwanted false tripping in extreme hot or cold working conditionsMade-in-Ch….
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