Siemens | HQR22B175H | Circuit Breaker | 175A | 2-Pole | 240V | Bolt-On

Siemens HQR22B175H is a bolt-on circuit breaker built for demanding, high-current protection in panels that support the HQR family. With a 175A rating across 2 poles at 240V, it delivers reliable, solid protection for large-load circuits while keeping installation secure and straightforward. Key details at a glance

• Amperage: 175A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part number: HQR22B175H
• Applications: Maintenance, retrofit, and replacement where matching specs are required

Why this breaker stands out

The HQR22B175H is designed for panels that rely on a bolt-on mounting style, offering a rigid, secure connection that’s ideal for installations in environments where vibration or movement could affect plug-on breakers. Its 175A two-pole configuration provides coordinated protection for both legs of a 240V circuit, making it a precise fit for high-demand equipment or large branch circuits within compatible Siemens panels.

Ideal use cases

• Maintenance: replace aging or failed breakers with an exact spec match to keep your panel operating safely
• Retrofits: upgrade to a higher-current, two-pole protection in existing Siemens installations that require HQR-series compatibility
• Repairs and replacements: when the panel label or part references indicate HQR22B175H as the correct option

Fit and compatibility guidance

Before ordering, confirm fit and ratings based on your panel’s labeling and design. The HQR22B175H part number is the best reference for compatibility, ensuring you don’t mismatch bus connections or mounting requirements. If your panel is designed for HQR-style bolt-on breakers, this unit will align with the mounting dimensions and electrical specifications your system relies on.

Installation and practical considerations

As a bolt-on device, this breaker requires proper mounting hardware and secure fastening to the panel’s bus structure. When installing, ensure the conductor sizes, insulation, and overcurrent protection requirements of the circuit align with the 175A rating. Follow the panel manufacturer’s guidance for torque, alignment, and any panel-specific installation steps to maintain safety and performance.

What you gain with Siemens HQR22B175H

• Robust, bolt-on stability for high-current protection in compatible panels
• Exact specification match for maintenance, retrofit, and replacement projects
• Clear, single-part reference (HQR22B175H) to streamline ordering and inventory
• Reliability you expect from Siemens’ HQR-series protection devices

If you’re upgrading or restoring an existing Siemens installation that requires a 175A, 2-pole, 240V bolt-on breaker, the HQR22B175H is designed to deliver precise protection with a straightforward fit. Ensure your panel is listed for HQR bolt-on breakers and reference the part number for an accurate match.