Siemens QRH22B175 - 175 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Introducing the Siemens QRH22B175—a 175A, 240V, 2-pole bolt-on molded case circuit breaker designed to protect your electrical system with precision and reliability. Built for dependable branch-circuit overcurrent and short-circuit protection, this breaker integrates seamlessly into panelboards and load centers that require robust, consistent performance.

• Secure bolt-on mounting: a rigid, vibration-resistant bus connection helps maintain a dependable, long-term link between breaker and panel, reducing the risk of loosening over time in demanding environments.
• Thermal-magnetic trip unit: delivers stable, repeatable protection for both overloads and short circuits, ensuring fast, predictable response when faults occur.
• Two-pole, 240V design: ideal for protecting shared neutral or 240V circuits common in residential, commercial, and light industrial settings.
• OEM-compatible: specifically designed to be compatible with matching Siemens OEM load centers and panelboards, promoting a clean, reliable fit and predictable performance.
• Versatile installation scope: suitable for a range of applications—from home service panels to small business panels and light industrial distribution—where dependable overcurrent protection is essential.

Technical specifications at a glance

• Manufacturer: Siemens
• Part Number: QRH22B175
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 175A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the QRH22B175

This breaker is a strong match for electricians and facility managers who need to upgrade or expand protection in Siemens-compatible panelboards and load centers. It’s well-suited for:

• Residential electrical panels undergoing service upgrades or modernization
• Commercial panels supporting small offices, retail spaces, or workshops
• Light industrial installations where reliable 2-pole protection at 175A is required

Why this choice stands out

Beyond its basic function, the QRH22B175 emphasizes durability and consistency. The bolt-on design provides a solid physical connection that remains secure in environments subject to vibration or movement. The thermal-magnetic trip mechanism offers dependable protection with a clear, predictable response profile, reducing the risk of nuisance trips while still safeguarding circuits against faults. Coupled with Siemens’ compatibility with OEM panels, this breaker simplifies replacements and future upgrades, helping you maintain a safe, compliant electrical system with fewer compatibility headaches.