Siemens HQR22B125HL 125A 2-Pole 240 V Circuit Breaker

Meet the Siemens HQR22B125HL 125A 2-Pole 240 V Circuit Breaker — a purpose-built protection device designed to safeguard demanding 240-volt circuits in Siemens electrical panels. With the part number HQR22B125HL, this breaker delivers dependable overload protection and clean, reliable disconnection when faults occur, helping to keep your home or workspace safe and code-compliant.

Why this breaker stands out

• 125 A current rating provides robust protection for high-load circuits, such as powerful heating elements, large air conditioners, and other 240 V appliances.
• 2-pole design ensures both hot legs are disconnected simultaneously, reducing the risk of dangerous voltage backfeed and providing safer disconnections in fault conditions.
• 240 V compatibility specifically engineered for 240 V circuits, aligning with common residential, commercial, and industrial setups that run on two hot lines.
• Precise fit with Siemens systems—part number HQR22B125HL is selected for compatibility with Siemens panels that accept HQR-series breakers, simplifying replacement and upgrades.

Practical use cases

• Protecting high-demand 240 V appliances such as electric water heaters, heat pumps, and large HVAC components.
• Feeding dedicated 240 V equipment in workshop or specialty spaces where consistent, reliable current interruption is critical.
• Upgrading or replacing aging breakers in Siemens panels to maintain safety standards and electrical code compliance.

Why it matters for safety and reliability

This 125 A, 2-pole 240 V circuit breaker provides a decisive line of defense against overcurrent events. By interrupting fault currents across both conductors, it helps prevent wiring overloads, equipment damage, and potential fire hazards. In environments where 240 V loads are essential, having a reliable Siemens breaker ensures you’re protected without sacrificing performance.

Compatibility and installation considerations

Designed for Siemens panels that accept HQR-series breakers, this unit should be installed by following the panel manufacturer’s instructions and local electrical codes. Verify panel compatibility and bus stabs before replacement to ensure a secure, code-compliant connection.

At a glance

• Current rating: 125 A
• Poles: 2
• Voltage rating: 240 V
• Part number: HQR22B125HL
• Series: Siemens HQR (2-pole, 240 V) — ideal for high-load 240 V circuits