QRH22B150 - 150 Amp Circuit Breaker

QRH22B150 - 150 Amp Circuit Breaker

When you need dependable, high-capacity circuit protection, the Siemens QRH22B150 steps up. This 2-pole, 150 amp molded case breaker is engineered to safeguard your 120/240 V circuits against overloads and short circuits with confidence. With a 25 kA interrupting rating at 240 V, it meets the demands of modern residential and light commercial installations.

Its compact footprint (approximately 7 inches tall, under 3.2 lbs) ensures it fits smoothly into most panels, making upgrades or retrofits easier than ever. The breaker includes load-side lugs out of the box for faster wiring and supports reverse-feed installations, enhancing flexibility on the job site.

This breaker is HACR-rated (Heating, Air Conditioning, Refrigeration), so it’s fully compatible with HVAC systems and refrigeration lines without additional coordination.

Key Features and Benefits

• 150-amp capacity: Strong protection for high-demand circuits
• 25 kA interrupting rating: Safely clears high fault currents
• 2-pole design at 120/240 V: Ideal for multi-wire branch circuits
• Compact size & light weight: Streamlines panel installation
• Preinstalled load-side lugs: Reduces wiring time
• Reverse feed compatibility: Enables flexible installation options
• HACR rated: Ready for HVAC, heating, and refrigeration loads
• Molded case construction: Durable insulation and compact protection

Technical Specifications

• Poles: 2
  
• Voltage: 120/240 VAC
  
• Amperage: 150 A
  
• Interrupting Rating: 25 kA @ 240 V
  
• Height: ~7.0 in
  
• Weight: ~3.2 lbs
  
• Trip Type: Thermal-magnetic
  
• Connection Style: Bolt-on with load-side lugs standard
  
• Reverse Feed: Supported (UL-listed)
  

Material Compliance and Certifications

• Safety Standards: This circuit breaker conforms with UL 489 and CSA safety requirements used in North American markets, and meets Siemens' internal performance standards.
• Design Features: The molded case design ensures insulation integrity and resistance to environmental stress. Its QRH2 frame supports high inrush current tolerance (for motors or compressor loads). Field-installable internal accessories (such as shunt trip or auxiliary switches) are supported in the QR family to extend functionality.

Where It Works Best

• The Siemens QRH22B150 is ideal for residential or light commercial electrical panels needing a strong, dual-pole solution. It’s instrumental in systems with HVAC or refrigeration units, thanks to its HACR rating. Because of its compact build and prewired lugs, it’s also well-suited for panel upgrades or retrofits when space is tight. If you need reliable, high-capacity circuit protection without oversized hardware, this breaker fits the bill.