The WEG UMBW series thermal-magnetic miniature circuit breaker line includes both UL489 and UL1077 approvals to provide a solution for circuit & equipment protection in industrial electrical equipment. The UMBW has a range from 1 to 63 amps, and is available in 1,2 or 3 poles, with B, C and D trip curves.
The UMBW has a range from 1 to 63 Amps, available in 1,2, 3 poles, and B, C, D trip curves. Single pole and multi-pole thermal-magnetic miniature circuit breakers (MCBs) are in accordance with EN 60947-2, UL 1077 and UL 489 for DIN rail mounting with toggle actuation, visual status indication, and high interrupt capacity. A positively trip-free snap action mechanism ensures reliable switching behavior. A range of trip characteristics and add-on accessories make the UMBW suitable for a variety of applications.