Siemens QJH22B175 - 175 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens QJH22B175 — a resilient 175A, 240V, 2-pole bolt-on molded case circuit breaker designed to safeguard your electrical distribution with precision. Built for dependable branch circuit overcurrent and short-circuit protection, this unit is a reliable cornerstone for panelboards and loadcenters in homes, offices, and light industrial environments.

• Bolt-on mounting provides a secure, vibration-resistant connection to the bus, reducing the risk of loose contacts and ensuring long-term reliability in challenging installations.
• Thermal-magnetic trip unit delivers stable, repeatable protection by responding to both overloads and short-circuit events, helping to minimize nuisance trips while guarding wiring and equipment.
• 2-pole, 175A, 240V configuration is ideal for protecting higher-current branch circuits that power critical loads across the distribution panel.
• OEM-compatible design ensures seamless integration with matching Siemens panelboards and OEM loadcenters for a cohesive, reliable protection system.
• Versatile application suitable for residential, commercial, and light industrial installations, making it a flexible choice for a wide range of projects.

This breaker is purpose-built for branch circuit protection and short-circuit interruption, acting as a robust safeguard against electrical faults. Its sturdy construction and precise trip characteristics help maintain system integrity and protect downstream equipment from damage due to overcurrent events.

Key specifications

• Manufacturer: Siemens
• Part number: QJH22B175
• 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

For installation, pair this breaker with compatible Siemens panelboards or OEM loadcenters and follow the manufacturer's mounting guidelines to maintain a solid, code-compliant protection scheme. Ideal for projects that require reliable, high-current protection with installation-ready compatibility and proven Siemens quality.