HQR23B100 - 100 Amp Circuit Breaker

HQR23B100 - 100 Amp Circuit Breaker

When you need dependable protection in three-phase systems, the HQR23B100 delivers—with performance and ease. Built on the HQR2 (QR) frame, this molded-case circuit breaker is rated for 100 amps and offers a 65 kA interrupting capacity at 240 VAC, making it ideal for a wide range of commercial, industrial, or tougher residential setups. At just 7 inches in height and weighing approximately 4.5 lbs, it’s compact enough for most panels yet strong enough to safeguard against overloads or faults. Load-side lugs are included for faster wiring, and its straightforward installation means your techs spend less time fussing and more time finishing jobs.

Key Features and Benefits

• Three-pole configuration: Designed for balanced protection in three-phase applications
• 100 A nominal rating: Supports moderate to heavy electrical loads
• 65 kA interrupting capacity @ 240 VAC: High fault-clearing ability for safer operation
• Compact footprint: Fits most standard industrial and commercial panels
• HACR (Heating, Air Conditioning, Refrigeration) rated: Suitable for HVAC/R systems and related loads
• Thermal-magnetic trip mechanism: Responds to both sustained overloads and instantaneous faults

Technical Specifications

• Part Number: HQR23B100
• Frame / Series: HQR2 / QR family
• Poles: 3
• Ampere Rating: 100 A
• Interrupting Capacity: 65 kA @ 240 VAC
• Mounting / Connection: Bolt-on (load-side lugs included)
• Dimensions:
  • Height: ~7.0 in
  • Width: 4.5 in
  • Depth: ~2.5 in
• Weight: ~4.5 lbs
• Ambient Temperature Rating: 40 °C (standard)
• Trip Type: Thermal-magnetic (includes long-time + instantaneous protection)

Material Compliance and Certifications

• UL Listed: Meets safety and operational standards
• HACR Rated: Approved for HVAC / refrigeration circuits
• Conformance: Conforms to recognized molded-case circuit breaker norms and industry requirements

Where It Works Best

• This breaker excels in three-phase distribution networks, whether in light industrial plants, commercial facilities, or larger residential complexes. It’s a popular pick for protecting HVAC systems, motor control circuits, equipment feeders, and branch panels where reliable protection and fault clearing are critical. If your project demands a mid-range 100 A solution in a three-pole setup, the HQR23B100 is engineered to deliver.