Siemens HQR22B100L 100A 2-Pole 240 V Circuit Breaker

Meet the Siemens HQR22B100L 100A 2-Pole 240 V Circuit Breaker — a precise, reliable protection solution built to safeguard 240V feeders and the devices they serve. This part, identified by HQR22B100L, belongs to Siemens’ trusted HQR family and is designed for consistent performance in demanding electrical setups.

• Current rating: 100 A — engineered to interrupt higher-load circuits and protect wiring from overloads
• Poles: 2-pole design — disconnects both hot legs of a 240 V circuit simultaneously for complete de-energization
• Voltage rating: 240 V — suitable for standard 240 V feeders and common high-demand applications
• Part number: HQR22B100L — precise specification for ordering, replacement, and panel compatibility
• Brand and lineage: Siemens — a durable, field-proven solution for residential and light commercial panels

This circuit breaker delivers essential overcurrent protection, helping prevent overheating and potential electrical faults in your 240 V circuits. The two-pole design ensures both conductors are interrupted together, reducing the risk of dangerous arc faults and equipment damage when a fault or overload occurs.

Ideal use cases

• Feeding large 240 V appliances and circuits, such as central air conditioning, water heating, or electric ranges
• Providing a safe feeder to a subpanel in a home or small business setup
• Replacing an aging or worn breaker in a panel that accepts HQR-series devices

Why choose this Siemens breaker

With Siemens engineering behind it, the HQR22B100L offers dependable trip performance and robust construction tailored for panels that accommodate HQR-type breakers. It’s a targeted choice when you need a 100 A, two-pole solution that reliably disconnects both live conductors at once, helping you maintain safer, more resilient electrical systems.

Installation and care

Installers should follow all local electrical codes and the panel manufacturer’s instructions. Ensure the breaker is compatible with the panel’s design for HQR-series devices and perform the installation with appropriate safety precautions. For best results, rely on a qualified electrician for panel work and confirm that the 100 A rating aligns with your feeder requirements and wiring gauge.