Square D | Q2M3100MT | Circuit Breaker | 3-Pole | 240V | Bolt-On

Square D Q2M3100MT Circuit Breaker delivers dependable overcurrent protection for 3-phase, 240V systems with a bolt-on mounting design. Built for maintenance, retrofit, and replacement projects, this 3-pole unit offers straightforward installation and consistent performance in demanding electrical environments.

Key specifications

• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part number: Q2M3100MT

Why this matters for your panel

In three-phase distribution, a 3-pole breaker like the Q2M3100MT provides synchronized protection across all three live conductors. The bolt-on mounting ensures a sturdy, vibration-resistant attachment that stays secure during routine maintenance or panel servicing, reducing the risk of loose connections that can lead to nuisance trips or equipment downtime.

Notes

Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Ideal use cases

• Maintenance in existing 3-phase 240V electrical systems requiring a direct replacement.
• Retrofit projects where a bolt-on 3-pole breaker is needed for quick installation into compatible panels.
• Replacement of worn or outdated breakers to restore reliable protection with minimal panel modification.

How this compares to other options

Compared to non-bolt-on designs, a bolt-on breaker like the Q2M3100MT offers faster, more secure mounting and easier alignment during installation. It provides robust mechanical stability in panels subject to vibration or frequent service, helping to maintain consistent electrical protection over time.