YBRM5DC-250 series circuit breaker
The YBRM5DC-250 series DC circuit breaker is a high-performance protection device specially designed for DC power distribution systems, suitable for environments at an altitude of 2000 meters and below, with a rated insulation voltage of up to DC1200V, a rated operating voltage of DC1000V and below, and a rated current of ≤ 630A, which can be adapted to DC non-grounding, negative grounding, center point grounding, and photovoltaic system circuits. The number of poles of this series is 3P and 4P optional, the short-circuit breaking capacity is divided into N type and H type, and the rated limit short-circuit breaking capacity is up to 50/15kA, and the rated operating short-circuit breaking capacity is the same as the limit breaking ability, ensuring reliable disconnection under short-circuit faults. Mechanical life up to 30000 times, electrical life 15000 times, equipped with thermal magnetic tripper, high current setting accuracy, long delay (0.7-1.0) In±20%, instantaneous 10In±20% (&g…
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