Square D Multi 9 C60SP Miniature Circuit Breaker, 4-Pole, 45A, B-Curve, 480Y/277V, 10 kA
The Square D Multi 9 C60SP miniature circuit breaker (Model M9F21445) is a 4-pole, 45A, B-curve breaker rated at 480Y/277V with a 10 kA breaking capacity. Designed for 3-phase plus neutral branch circuit protection.
Square D Multi 9 C60SP Miniatu...
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Square D Multi 9 C60SP Miniature Circuit Breaker – 4-Pole, 45A, B-Curve
The Square D (Schneider Electric) Multi 9 C60SP miniature circuit breaker (Model M9F21445) provides 4-pole overcurrent protection at a 45A continuous rating for industrial and commercial 480Y/277V systems. The B-curve trip characteristic accommodates moderate inrush currents, while the 10 kA breaking capacity ensures reliable fault interruption.
Key Features
- 4-pole configuration for 3-phase plus neutral 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
- Compact, modular design
- Part of the Square D Multi 9 C60SP breaker family
Specifications
- Model: M9F21445
- Manufacturer: Square D (Schneider Electric)
- Poles: 4
- Amperage: 45A
- Voltage: 480Y/277V
- Breaking Capacity: 10 kA
- Trip Curve: B
Applications
Suitable for 3-phase plus neutral industrial and commercial distribution systems at 480Y/277V. Ideal for HVAC equipment, motor feeders, and power distribution circuits where 4-pole, 45A branch circuit protection is required.
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