Siemens QRH22B100 - 100 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Siemens QRH22B100 is a 100A, 240V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and loadcenters. Designed to stand up to the rigors of residential, commercial, and light industrial use, it delivers consistent protection you can trust when utility power is imperfect or energy demands spike.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that remains solid through thermal cycling and equipment vibration, helping maintain reliable electrical continuity over time.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding appropriately to both overloads and short-circuit events, reducing nuisance trips and enhancing safety.
• OEM compatibility: Fully compatible with matching Siemens loadcenters and panelboards, ensuring proper fit, alignment, and electrical performance without retrofit hassles.
• Versatile 2-pole design: Ideal for protecting essential branch circuits that require simultaneous disconnection and 240V operation, including feeders and large-appliance circuits.
• Application breadth: Suitable for residential, commercial, and light industrial environments, where reliable protection and easy replacement matter most.

Technical specifications

• Manufacturer: Siemens
• Part Number: QRH22B100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 100A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Use cases to consider with the QRH22B100: upgrading an existing Siemens panelboard or loadcenter for a dedicated 100A circuit, adding reliable protection for high-demand feeders, or replacing an aging breaker to restore consistent performance. Its bolt-on design makes installation straightforward for technicians familiar with Siemens systems, while the thermal-magnetic protection helps balance fast interruption with reduced nuisance trips. For installers and facility managers, this breaker provides a dependable, OEM-aligned option that maintains electrical system integrity and simplifies maintenance within Siemens-certified configurations.

When you choose the QRH22B100, you’re selecting a component built to integrate seamlessly with Siemens equipment and to deliver predictable protection where it matters—keeping electrical systems safe, compliant, and ready to perform under demanding conditions.