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Square D QOB120HM - Molded Case Circuit Breaker 20A 120/240VAC

Square D
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Square D QOB120HM is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in commercial and industrial electrical systems. It features a 20A current rating and a 120/240VAC voltage rating, housed within a compact 76mm x 19mm x 74mm (HxWxD) bolt-on unit weighing 0.27 lb. This thermal-magnetic breaker with high magnetic trip utilizes a pressure plate terminal connection for wires from 14 to 8 AWG and is compliant with CSA and UL standards. It is engineered for integration into Square D NQOD panelboards, offering 10kA interrupting capacity at 120V for robust branch circuit protection.

Key Features & Specifications
  • Type: Molded Case, Thermal-Magnetic Protection, High Magnetic Trip, Bolt-On Connection
  • Voltage Rating: 120/240VAC
  • Current Rating: 20A
  • Dimensions: 3.0 in (76 mm) H x 0.7 in (19 mm) W x 2.9 in (74 mm) D
  • Weight: 0.27 lb
  • Standards: CSA, UL Listed
  • Applications: Commercial and Industrial Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Single Pole
  • AIC Rating: 10kA @ 120V
  • Connection: Bolt-On
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: 100A/QO
  • Trip Type: High Magnetic
  • Panel Type: Square D NQOD Panelboards
  • Breaker Type: High Magnetic
  • Phase: 1
  • Temp Rating: 104°F (40°C) Minimum and Maximum Operating
  • Terminal Connection: Pressure Plate
  • MCM Size: 14 AWG Min. / 8 AWG Max. Wire Size
  • Certification: UL Listed
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901341710
  • GTIN: 00785901341710