Square D | Q2M3150MB | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On

Meet the Square D Q2M3150MB Circuit Breaker — a robust 150A, 3-Pole, 240V bolt-on protection solution designed for maintenance, retrofit, and replacement projects where exact specifications matter. Built to deliver reliable overcurrent protection for demanding 3‑phase layouts, this breaker is ready to fit your Square D installation when the specs match.

Key specifications at a glance

• Amperage: 150A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On for secure, dependable installation

Compatibility and fit

The Q2M3150MB is best referenced by its part number when checking compatibility. Ensure your panel and bus arrangement support a 3‑pole, 150A, 240V bolt-on breaker in the Square D Q2M family. Always confirm fit and ratings before ordering to prevent mismatches and ensure reliable operation.

Ideal use cases

• Maintenance and replacement in existing Square D installations where exact specs are required
• Retrofit projects that demand a 150A, 3-pole, 240V bolt-on breaker for consistent protection
• Repair workflows that rely on a direct, authentic component reference to maintain system integrity

What you gain with the Q2M3150MB

• Direct, authentic Square D protection for 3‑phase circuits with a precise 150A rating
• Secure bolt-on mounting minimizes installation loosening and simplifies service later
• Clear part-number-driven compatibility helps you avoid guesswork in critical replacements
• Reliable protection tailored to maintenance, retrofit, and replacement scenarios without compromising ratings

When you’re aligning components for a 3‑phase 240V distribution setup, the Q2M3150MB stands out as a purpose-built choice. Rely on the part number for compatibility, and choose this bolt-on Square D breaker for a precise, durable solution that supports your ongoing maintenance and upgrade plans.