Square D | MA12100 | Circuit Breaker | 2-Pole

Square D MA12100 is a 2-Pole Circuit Breaker identified by the part number MA12100. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this two-pole unit delivers dependable overcurrent protection for multi‑wire circuits in compatible Square D panels.

Key benefits

• 2-Pole configuration provides coordinated protection for paired conductors, aligning with common 2‑phase or multi-wire circuit setups
• Part-number driven compatibility the MA12100 designation is the most reliable reference when matching to your panel
• Versatile use cases ideal for maintenance, retrofit, and replacement—keeping your electrical system safe and compliant
• Trusted brand quality backed by Square D’s long-standing reputation for durable, field-tested protection

Ideal use scenarios

• Replacing a failed or aging 2‑pole breaker in residential or commercial panels that require Square D compatibility
• Retrofits where you need to preserve original panel protection while upgrading components
• Maintenance replacements to restore reliable circuit protection with minimal downtime

Fit, ratings, and ordering tips

Notes: Confirm fit and ratings before ordering. The part number MA12100 is the best reference for compatibility with your panel. If your application relies on specific amperage, trip characteristics, or panel series, verify these details against your panel label and documentation.