HQR23B150 - 150 Amp Circuit Breaker

HQR23B150 - 150 Amp Circuit Breaker

When you’re building or upgrading a power distribution system, you want a circuit breaker that’s dependable under stress—and the HQR23B150 delivers. This 3-pole molded case breaker in the HQR2/QR frame is rated for 150 amps and interrupts up to 65 kA at 240V AC, providing you with real assurance when fault currents spike. At just 7 inches tall and about 4.5 lb, it fits comfortably into most standard panels without crowding the layout. It comes with load-side lugs already installed, and is HACR rated so it’s suitable for HVAC and refrigeration circuits, with a 40 °C ambient rating. In short: a solid, no-nonsense choice for both commercial and upscale residential applications.

Key Features and Benefits

• High protection threshold: Rated for 150A and able to interrupt up to 65 kA at 240VAC—ideal for systems with high fault levels.
• Compact yet capable: The form factor ensures compatibility with standard panels without bulk or interference.
• Built-in load lugs: Saves you extra accessory purchases and simplifies installation.
• HACR-rated: Already approved for heating, air conditioning, and refrigeration applications—no extra certifications needed.
• Thermal-magnetic trip unit: Offers reliable response to both sustained overcurrent and instantaneous short-circuit events.

Technical Specifications

• Part Number: HQR23B150
  
• Frame / Series: HQR2 (QR family)
  
• Poles: 3
  
• Amp Rating: 150 A
  
• Interrupting Capacity: 65 kA @ 240VAC
  
• Dimensions:
  • Height: 7.0 in (≈ 178 mm)
• Weight: ~4.5 lb (≈ 2.0 kg)
  
• Ambient Rating: 40 °C
  
• Connection Type: Load-side mechanical lugs included
  
• Certifications / Standards: UL 489, CSA C22.2, NOM-003
  

Material Compliance and Certifications

• Industry Standards: This breaker is built according to leading industry safety and quality standards. It conforms to UL 489 and CSA C22.2, among others, ensuring that it meets rigorous testing requirements for electrical overcurrent protection.
• Material Compliance: The materials used are compliant with environmental and regulatory guidelines, helping you maintain system integrity without sacrificing safety.

Where It Works Best

• Install this breaker in commercial facilities, light manufacturing sites, or moderate-to-large residential systems where a 150-amp protection device is needed. It’s a great fit for HVAC units, heavy machinery circuits, or main feeds in a subpanel. If you're dealing with steady loads or occasional high inrush currents, the HQR23B150 is a dependable component for capacity planning and fault protection.