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Square D QHB230 - Molded Case Circuit Breaker 30A 2-Pole

Square D
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Square D QHB230 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 30A current rating and a 240V AC voltage rating, housed within a compact, bolt-on frame measuring 76 mm H x 38 mm W x 74 mm D and weighing 0.56 lb. This thermal-magnetic breaker provides both long-time and instantaneous trip functions, is UL Listed and CSA certified, and offers a 65kA interrupting capacity at 240V for robust short-circuit protection. Its pressure plate terminals accept copper or aluminum conductors from 14 AWG to 8 AWG, and it operates reliably across a temperature range of -25 to 70 °C, making it suitable for industrial control panels, HVAC equipment, and commercial lighting applications.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic Protection, Standard Breaker
  • Voltage Rating: 240V AC
  • Current Rating: 30A
  • Dimensions: 76 mm H x 38 mm W x 74 mm D (3.0 in x 1.5 in x 2.9 in)
  • Standards: UL Listed, CSA
  • Applications: Industrial Control Panels, HVAC, Commercial Lighting
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 65kA @ 240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Breaker Type: Standard
  • Wire Size: 14 AWG to 8 AWG (Copper/Aluminum)
  • Certification: UL Listed, CSA
  • Terminal Connection: Pressure Plate
  • Family: QOB Series
  • Weight: 0.56 lb


Product Identification
  • UPC: 785901341642
  • GTIN: 00785901341642