Siemens HQR22B100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens HQR22B100 is a 100A, 240V, 2-pole bolt-on molded case circuit breaker engineered to deliver dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure the rigors of busy electrical environments, this breaker provides robust performance when it matters most.

• Secure bolt-on mounting: a rigid, vibration-resistant bus connection that helps maintain solid electrical contact even in cabinets with frequent activity or vibration.
• Thermal-magnetic trip unit: combines precise thermal sensing with magnetic trip action for stable, repeatable protection across a wide range of loads and temperatures.
• OEM-compatible design: engineered to work seamlessly with matching Siemens OEM load centers and panelboards, ensuring reliable fit and electrical performance.
• 2-pole, 100A, 240V: ideal for high-current, two-hot-leg circuits such as heavy-load feeders and 240V appliances in residential, commercial, and light-industrial settings.

This unit protects critical circuits from overcurrent and short circuits, helping prevent damage to wiring and equipment while supporting safe system shutdown when faults occur. It’s especially well-suited for panelboard retrofits, subpanel feeders, and any installation where a robust, bolt-on breaker is the preferred mounting method.

Key specifications

• Manufacturer: Siemens
• Part number: HQR22B100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 240 V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Installation and compatibility notes: use with compatible Siemens OEM panelboards and load centers that support bolt-on breakers. Always de-energize the equipment and follow proper safety procedures during installation. This breaker is designed for residential, commercial, and light-industrial applications where a reliable, high-current two-pole protection device is required. Available through AmpState as a trusted Siemens solution.