Siemens | QJ2B110HL | Circuit Breaker | 2-Pole | 240V

Siemens QJ2B110HL is a dependable 2-pole, 240V circuit breaker designed for maintenance, retrofit, and replacement projects where precise compatibility matters. Identified by the exact part number QJ2B110HL, this breaker ensures reliable protection for 240V circuits in Siemens panels and compatible enclosures.

Key advantages

• Two-pole design for 240V circuits: Safeguards both hot legs in a 240V setup, delivering balanced protection and trip coordination in multiwire systems.
• Exact part reference: The QJ2B110HL designation is your best compatibility reference, reducing guesswork during replacements or retrofits.
• Maintenance-friendly replacement: A straightforward upgrade path when upgrading or restoring panel protection without altering downstream wiring.
• Trusted Siemens build quality: Engineered to meet common electrical standards and to integrate smoothly with Siemens panels and related accessories.

Specifications at a glance

• Poles: 2-Pole
• Voltage rating: 240V
• Part number: QJ2B110HL

Ideal use cases

• Replacing a failed or outdated 2-pole breaker in 240V circuits within residential or light commercial panels that require Siemens compatibility.
• Retrofit projects where panel manufacturers specify the QJ series for consistent trip characteristics and reliable performance.
• Maintenance cycles in electrical panels that protect appliances, HVAC equipment, or other 240V-powered loads.
• New installations in systems designed around Siemens QJ components, ensuring uniform protection across the panel lineup.

Compatibility and installation notes

Important: Confirm fit and ratings before ordering. The QJ2B110HL part number is the best reference for compatibility with your panel. When selecting this breaker, verify that the enclosure, frame, and bus connections match the QJ family requirements, and that the panel labeling supports a 2-pole, 240V device of this type. For best results, align your selection with the panel’s documentation and any manufacturer-specific installation guidelines.