WEG UMBW Thermal-Magnetic MCB Catalog
The WEG UMBW Thermal-Magnetic MCB catalog provides detailed specifications, ratings, approvals, and accessory options for single and multi-pole miniature circuit breakers.
Key Points
- Single-pole and multi-pole thermal-magnetic miniature circuit breakers (MCBs)
- Wide current rating range: 1 to 63 A across AC and DC voltages
- High interrupting capacity up to 10kA depending on configuration
- Accessories include auxiliary contact, alarm contact, and shunt release
- Compliance with IEC 60947-2, UL 1077, and UL 489 standards
- Trip curves B, C, and D for various application needs
- Long operational life: 10,000 electrical and 20,000 mechanical cycles
- Suitable for a wide range of industrial and commercial applications