Siemens | QJ2M150H | Circuit Breaker | 150A | 2-Pole | 240V | Bolt-On

Siemens QJ2M150H is a purpose-built 150A, 2-pole, 240V bolt-on circuit breaker engineered for reliable protection in Siemens panels. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this OEM part helps you restore safe, code-compliant operation quickly and confidently.

• Amperage: 150A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On for a secure, durable connection
• Reference: Part number QJ2M150H for precise compatibility
• Applications: Maintenance, retrofit, and replacement where matching specs are required

What makes this breaker unique

Unlike generic substitutes, the QJ2M150H is a genuine Siemens component designed to slot into existing Siemens panels without compromise. The bolt-on design delivers a solid mechanical and electrical connection, reducing the risk of loose fittings and ensuring consistent protection for your 240V circuits. Use it when you need to maintain the exact protection level your system was engineered for, or when youre upgrading a panel to restore full protection coverage after component wear or damage.

Ideal use cases

• Retrofitting older Siemens panels to restore original protection and reliability
• Replacing a failing or worn 150A, 2-pole breaker in a 240V circuit
• Maintenance projects where exact Siemens specifications are mandatory
• Panel upgrades that require seamless compatibility with existing Siemens equipment

Compatibility and installation tips

Before ordering, verify the fit and ratings against your panel’s documentation. The part number QJ2M150H is the most reliable reference for compatibility with Siemens systems. Ensure your panel accepts bolt-on breakers and that the circuit’s 150A protection rating aligns with your load calculations. When installing, follow standard safety protocols and consult your panel manufacturer’s guidelines to confirm proper mounting and clearance.

Why choose Siemens for protective device needs

Choosing a Siemens QJ2M150H means continuity with your existing protection strategy and equipment lineage. This 150A, 240V, 2-pole bolt-on breaker is built to endure typical panel service conditions, delivering dependable interruption protection for essential loads while maintaining straightforward serviceability for future maintenance or upgrades.