ABB 746830 Industrial Circuit Breaker
Description
ABB 746830 Industrial Circuit Breaker is a molded case circuit breaker (MCCB) designed for overcurrent protection in low-voltage electrical systems. As part of ABB’s Tmax series of molded case circuit breakers, it shares core design and performance characteristics with the full line of T-series MCCBs.
| Specification | Value |
|---|---|
| Rated Limit Short-Circuit Breaking Capacity (380/415VAC) | 16kA to 200kA |
| Ambient Air Temperature Range | -5 degrees Celsius to 40 degrees Celsius; 24-hour average not exceeding 35 degrees Celsius |
| Maximum Installation Altitude | 2000m |
| Pollution Class | 3 |
| Pole Configurations | 3-pole, 4-pole |
Key Features:
- Available with thermomagnetic, single magnetic, or electronic trip units for flexible protection options
- Thermomagnetic trip units offer overload long-time delay and short-circuit instantaneous protection; electronic trip units add short-circuit short-time delay and ground fault protection
- Modular design with sealed plastic housing for compact, low-maintenance operation
- Supports both manual and motorized operation for different system requirements
Applications:
- AC and DC power distribution systems
- Motor protection circuits
- Low-voltage branch circuit protection in industrial and commercial facilities
Related Models:
- ABB T1 Series Molded Case Circuit Breaker
- ABB T3 Series Molded Case Circuit Breaker
- ABB T7S1000 Molded Case Circuit Breaker