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.
Features
Features
- AC and DC voltages available in one series
- UL489 branch circuit protective device
- UL1077 equipment protection
- 17.5mm width per pole
- Visual status indication
- Positive trip-free snap action mechanism to ensure reliable switching
- Cuttable bus bar connecting system
Specifications
Specifications
| UL approval | UL1077 |
|---|---|
| Trip curve | D |
| Number of poles | 2 poles |
| Rated current | 40 A |
| Maximum voltage | 277/480 VAC |
| Type | Thermal-magnetic |
