Hydraulic-magnetic circuit breaker MDWS

inductiveovercurrentcurrent

Designed for overcurrent and short circuit protection. Eletric current range from 2 to 63 A in versions of single, two, three and four poles. Safety The MDWP, MDW and MDWH miniature circuit breakers meet the characteristic tripping curves B and C, according to NBR NM 60898 and NBR IEC 60947-2 standards. Flexibility The line also has a single-pole, two-pole and three-pole distribution bus, and padlock as accessories, as required by NR 10. In the MDW and MDWP lines, it is possible to use auxiliary and alarm contact blocks. It also has a free trip mechanism, where the trip does not depend on the position of the handle, and indication of the circuit breaker status. Tripping Characteristic Curves Curve B The main characteristic of the miniature circuit-breaker of the B curve is the instantaneous trip for currents 3 to 5 times above the rated current. Therefore, they are applied mainly in the protection of circuits with resistive characteristics or with great cable lengths involved. Curve C The characteristic of the miniature circuit-breaker of the C curve is the instantaneous trip for currents 5 to 10 times above the rated current. Therefore, they are used for the protection of circuits with installation of inductive loads.