QRH22B100 - 100 Amp Circuit Breaker

QRH22B100 - 100 Amp Circuit Breaker

Protect your 120/240 V circuits with confidence using the Siemens QRH22B100. This 2-pole, 100 A breaker delivers reliable overload and fault protection with a 25 kA interrupting capacity (AIC), designed for use in residential, light commercial, and HVAC circuits. Built to handle high inrush conditions and everyday electrical demands, the QRH22B100 fits neatly into most panels, thanks to its compact 7-inch height and 3-lb weight. What’s more, it includes load-side lugs out of the box, simplifying installation and reducing wiring time.

Key Features and Benefits

• Dependable Circuit Protection: Guards your wiring and connected equipment from overloads and short circuits with thermal-magnetic trip action.
• High Interrupting Capability: Rated for 25,000 amps symmetrical interrupting current at 240 V, making it suitable for many standard systems.
• Designed for HVAC Use: HACR (Heating, Air Conditioning, Refrigeration) rating ensures compatibility with heating/cooling equipment.
• Efficient Installation: With included load-side lugs and a compact footprint, it streamlines wiring tasks and fits in standard panel layouts.
• Handles Inrush Demands: The QR series can accept high motor-start currents (up to 450% of nominal) without nuisance tripping.
• Versatile Accessory Support: Field-installable internal accessories (shunt trip, auxiliary switches) expand functionality if needed.

Technical Specifications

• Amperage: 100 A
  
• Poles: 2 (double-pole)
  
• Voltage Rating: 120/240 V AC
  
• Interrupting Rating: 25 kA (symmetrical) at 240 V AC
  
• Trip Type: Thermal-magnetic (Long-Time + Instantaneous)
  
• Mounting / Connection: Bolt-on style; mechanical / load-side lugs included
  
• Dimensions (approx): 7.0 in height; width & depth ~3 in / 3.39 in
  
• Weight: ~3.0 lbs (≈ 1.36 kg)
  
• Ambient Rating: Calibrated at 40 °C (derate above)
  
• Certification / Standards: UL 489, CSA C22.2, NOM-003
  

Material Compliance and Certifications

• HACR-rated: Specifically approved for use with heating, ventilation, air conditioning, and refrigeration systems.
• UL / CSA / NOM Compliance: Meets recognized safety and performance standards across North America.
• Accessory Compatibility: Supports approved internal options (shunt trip, aux switches) that are UL-listed.

Where It Works Best

• The QRH22B100 shines in homes, light commercial applications, and smaller industrial settings where 240 V circuits need dependable protection. It’s exceptionally well-suited for HVAC branches, motor loads, or any dual-pole circuit requiring consistent, safe performance. Use it in panelboards, switchboards, meter centers, or OEM control panels — wherever you need a dependable, space-efficient breaker that can handle typical loads plus occasional inrush surges.