Square D | Q2M2150VH | Circuit Breaker | 150A | 2-Pole | 240V | 22kA | Bolt-On

The Square D Q2M2150VH circuit breaker is a bolt-on, two-pole protection device designed for 240V circuits with a robust 22kA interrupting rating. Ideal for maintenance, retrofit, and replacement projects where exact specifications matter, this breaker integrates seamlessly into compatible Square D panels, delivering reliable short-circuit protection while preserving the integrity of your electrical distribution system.

Key specifications

• Amperage: 150 A
• Poles: 2-Pole
• Voltage: 240V
• Interrupting rating: 22kA
• Mounting: Bolt-On
• Part number: Q2M2150VH
• Series: Square D Q2M family
• Applications: maintenance, retrofit, and replacement in compatible panels

Why this breaker stands out

• Bolt-on reliability: The bolt-on mounting provides a secure, vibration-resistant connection that’s simple to install in compatible enclosures, reducing the risk of loose connections over time.
• High fault protection: With a 22kA interrupting rating, it’s designed to handle higher fault currents typical in commercial and light industrial environments, helping protect downstream equipment and wiring.
• Exact-fit compatibility: The Q2M2150VH is the best reference for matching your panel’s specifications. Confirm fit and ratings before ordering to ensure seamless performance.
• Clear specification match for replacements: When upgrading or replacing an existing breaker, using the exact part number helps preserve upstream protection coordination and panel integrity.

Ideal use scenarios

• Upgrading or replacing aged or failed breakers in 240V 2-pole circuits
• Retrofits in existing Square D panelboards where 150A capacity is required
• Maintenance changes in electrical rooms or facilities that rely on proven, compatible Q2M-series protection
• New installations within systems designed around a bolt-on, two-pole 150A protection scheme

Installation and compatibility tips

Before purchase, verify that your enclosure and bus arrangement are compatible with the Q2M2150VH bolt-on design. Use the part number Q2M2150VH as the primary reference for compatibility, and follow standard torque specifications for bolt-on breakers to ensure a solid, code-compliant connection. If you’re consolidating multiple circuits, plan for proper derating and ensure that the wiring gauge and conductor routing meet the device’s installation requirements.