Square D Multi 9 C60SP Miniature Circuit Breaker – 2-Pole, 45A, B-Curve
The Square D (Schneider Electric) Multi 9 C60SP miniature circuit breaker (Model M9F21245) delivers reliable 2-pole branch circuit protection at a 45A continuous rating and 480Y/277V. The B-curve trip characteristic is suited for circuits with moderate inrush currents, and the 10 kA breaking capacity provides robust short-circuit protection.
Key Features
- 2-pole configuration for 2-phase circuit protection
- 45A rated current for higher-load branch circuits
- B-curve trip characteristic for moderate inrush current applications
- 10 kA breaking capacity at 480Y/277V
- Modular design for straightforward panel integration
- Part of the Square D Multi 9 C60SP breaker family
Specifications
- Model: M9F21245
- Manufacturer: Square D (Schneider Electric)
- Poles: 2
- Amperage: 45A
- Voltage: 480Y/277V
- Breaking Capacity: 10 kA
- Trip Curve: B
Applications
Suitable for industrial and commercial distribution panels where 2-pole, 45A branch circuit protection is needed at 480Y/277V. Commonly used for HVAC systems, motor feeders, and other 2-phase loads requiring reliable overcurrent protection with moderate inrush tolerance.



