Siemens | HQR22B175 | Circuit Breaker | 175A | 2-Pole | 240V | Bolt-On

Meet the Siemens HQR22B175, a purpose-built bolt-on circuit breaker designed for demanding 2-pole, 240V systems. Built to support maintenance, retrofit, and replacement needs, this 175A unit delivers dependable protection where it matters most—keeping electrical circuits safe while your system stays up and running.

Key specifications

• Amperage: 175A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On

Why the HQR22B175 stands out

• Secure bolt-on design: The bolt-on mounting provides a robust, vibration-resistant connection that helps prevent loose terminations and ensures lasting performance under load.
• Trusted Siemens engineering: Built to exacting standards, this breaker is engineered for reliability in critical circuits that demand consistent protection.
• Clear compatibility reference: The part number HQR22B175 is the definitive reference for matching this breaker to the right panel or enclosure, reducing guesswork during replacements.
• High-load capability: With 175A rating, it’s well-suited for heavy-load circuits often found in HVAC, commercial equipment, and other 240V applications.

Ideal use scenarios

• Maintenance or service upgrades on 2-pole 240V panels requiring a Bolt-On format
• Retrofits where existing equipment calls for an HQR-series bolt-on breaker with 175A capacity
• Replacement of damaged or worn breakers in high-demand circuits such as motor drives, large appliances, or dedicated 240V feeders

Installation and compatibility tips

• Confirm fit first: Use the part number HQR22B175 as the best reference for compatibility with your panel or enclosure.
• Safety first: Power down the panel and follow all applicable electrical codes and safety procedures during replacement or installation.
• Mounting notes: Since this is a bolt-on breaker, ensure the mounting hardware and panel openings accommodate a bolt-on style for a secure, code-compliant install.
• Rating alignment: Match the breaker's 175A rating and 240V operation to the circuit you intend to protect to maintain proper overcurrent protection.

For professionals seeking dependable, high-visibility protection in 240V systems, the Siemens HQR22B175 provides a reliable 2-pole bolt-on solution that aligns with retrofit and replacement workflows. Rely on the part number, trust the Siemens build, and protect your circuits with precision.