Siemens | QJH22B150 | Circuit Breaker | 150A | 2-Pole | 240V | 22kA | Bolt-On

Siemens QJH22B150 Circuit Breaker is a purpose-built safety device designed for Siemens panels, delivering robust protection in a compact, bolt-on form. This 150-amp, 2-pole breaker operates at 240V and offers a substantial 22kA interrupting capacity, making it well-suited for demanding commercial and light industrial applications. The bolt-on mounting ensures a secure mechanical connection that remains reliable under heavy load and vibration, simplifying retrofit projects and long-term maintenance.

• Amperage: 150 A
• Poles: 2-Pole
• Voltage: 240V
• Interrupting Capacity: 22kA
• Mounting: Bolt-On
• Part Reference: QJH22B150 (best reference for compatibility)

This breaker is designed for exact-spec replacement and retrofit scenarios where a like-for-like electrical and mechanical fit is essential. By matching the QJH22B150 specification, you ensure proper trip characteristics, coordination with existing protection schemes, and compliant integration within Siemens panels.

Ideal use cases include maintenance outages, panel retrofits, and new installations in service configurations that require a 150A, 2-pole, 240V protection device with high short-circuit withstand. It’s particularly suitable for work in facilities that rely on Siemens QJH-series components and need a reliable, field-proven bolt-on solution.

Why choose this bolt-on breaker—the bolt-on design delivers a durable, vibration-resistant connection that helps maintain consistent electrical performance over time. The 22kA interrupting rating provides meaningful protection against fault currents, helping to limit damage to conductors and equipment and reduce downtime in critical systems.

Important compatibility notes — confirm fit and ratings before ordering. The part number QJH22B150 is the best reference to verify compatibility with your panel. If your project involves a Siemens panel that expects a QJH-series bolt-on breaker, this unit is designed to meet those exact specifications and mounting requirements, ensuring a straightforward installation and reliable protection for years to come.