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High-Quality YBRM5DC-630 Series Circuit Breaker

High-Quality YBRM5DC-630 Series Circuit Breaker

YBRM5DC-630 series DC molded shell circuit breaker, can work normally at an altitude of 2000 meters and below, rated insulation voltage DC1200V, rated working voltage DC750/1000V, rated current range of 250 - 630A, poles are 3P, 4P. The breaking capacity levels are N-type and H-type, with a rated limit short-circuit breaking capacity of up to 50kA and a rated operating short-circuit breaking capacity of ICS=100% ICU. Mechanical life 20000 times, electrical life (400V) 10000 times, thermomagnetic tripping long delay tripping current adjustable to (0.7 - 1.0)×In, instantaneous tripping is 10×In±20%, product size 3P is W:140×L:255×H:110, 4P is W:185×L:255×H:110. It is mainly used in DC non-grounding, negative grounding, center point grounding and photovoltaic system circuits to provide short circuit and overload protection for high-power cables and electrical equipment.Such as the confluence and distribution of large photovoltaic power stations, the DC power supply system of rail transit,…