Siemens HQR23B150HL Circuit Breaker, 150A, 3-Pole, 240V

Siemens HQR23B150HL Circuit Breaker is engineered for demanding industrial electrical service, delivering reliable overcurrent protection for three‑phase power distribution. With a 150 A rating and 240 V operating voltage, this 3‑pole device is built to withstand the rigors of maintenance and replacement projects in manufacturing environments, warehouses, and large facilities.

Whether you're upgrading an aging panel, replacing a failed breaker, or integrating a new 3‑phase circuit, the HQR23B150HL offers predictable trips and durable performance electricians rely on for continuous operation.

Key specifications

• Amperage: 150 A
• Poles: 3
• Voltage: 240 V
• Manufacturer: Siemens
• Part Number: HQR23B150HL
• Product Type: Circuit Breaker

What sets it apart

• 3‑pole design for 3‑phase systems: Optimized for three‑phase distribution and motor circuits that require balanced protection across all phases.
• Rugged industrial performance: Built to endure frequent cycling and harsh environments typical of manufacturing floors and heavy industry.
• Direct compatibility path: Use the part number to confirm fit for your application and ensure proper coordination with your existing Siemens equipment.

Ideal use cases

• New installations needing reliable 3‑phase 240 V protection for motors, conveyors, presses, or HVAC systems.
• Maintenance and retrofit projects where a trusted Siemens breaker is the right fit for current panels and extant layouts.
• Replacement of a failed 150 A circuit breaker in industrial settings that demand quick restoration of service and consistent protection.

Installation and compatibility notes: Verify fit by part number and application requirements. If you’re unsure about compatibility, message us with your panel model and circuit details and we’ll help confirm the correct part.