Efficient YBRM5DC-630 Series DC Circuit Breaker
The YBRM5DC-630 series DC circuit breaker is a high-performance protection device designed for medium and high power DC power distribution systems, covering 3P, 4P, rated working voltage covering DC750V, DC1000V, rated insulation voltage up to DC1200V, and rated shock withstand voltage of 8kV. The rated current is 250A, 350A, 400A, 500A, 600A, 630A, the short-circuit breaking capacity is divided into N-type, H-type and 4-pole products, the rated limit short-circuit breaking capacity is 36kA for N-type (750V/1000V), 50kA for H-type (750V/1000V), and 15kA for 4-pole products, and the rated operating short-circuit breaking capacity ICS=100% ICU ensures reliable disconnection under short-circuit faults. The mechanical life is up to 20000 times, the electrical life (400V) is 10000 times, equipped with a thermal magnetic tripper (TM-DC), the long delay is (0.7-0.8-0.9-1.0)×In, the instantaneous is 10×In±20%, the product size is W:140×L:255×H:110, and the 4P is W:185×L:255×H:110, and the inst…
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