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Square D QOB220H - 20A 2-Pole Circuit Breaker (10kA AIC)

Square D
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Square D QOB220H is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 20A current rating and a 120/240VAC voltage rating, with a compact bolt-on design measuring 76 mm x 38 mm x 74 mm (H x W x D) and a thermal magnetic trip mechanism for long-time and instantaneous (LI) protection. This unit is UL Listed and CSA certified, offering a 10kA interrupting capacity at 240V for robust safety compliance. It is commonly applied in industrial control panels, HVAC systems, and lighting distribution where dependable circuit protection is required.

Key Features & Specifications
  • Type: Standard molded case circuit breaker with thermal magnetic protection
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Dimensions: 3.0 in (76 mm) x 1.5 in (38 mm) x 2.9 in (74 mm) (Height x Width x Depth)
  • Standards: CSA, UL Listed
  • Applications: Industrial control panels, HVAC, lighting distribution
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: Standard
  • Phase: 1
  • Amperage: 20A
  • AIC rating: 10kA@240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Breaker Type: Standard
  • Terminal Connection: Pressure Plate
  • MCM Size: Min. Wire Size 14 AWG (Cu/Al) Max. Wire Size 8 AWG (Cu/Al)
  • Certification: UL Listed
  • Weight: 0.572 lb


Product Identification
  • UPC: 785901368274
  • GTIN: 00785901368274