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Square D QOU310 - 3-Pole Circuit Breaker 10A 240V

Square D
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Square D QOU310 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial and commercial electrical systems. It features a 10A current rating and a 240V AC voltage rating, housed within a compact 100A frame with dimensions of 102.87 mm H x 57.15 mm W x 74.93 mm D and a weight of 1.06 lb. The breaker is constructed with a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection, ensuring compliance with key industry standards including UL, CSA, and IEC. Its bolt-on connection with reversible slotted box lugs accommodates wire sizes from 14 AWG to 2 AWG for aluminum or copper, making it suitable for panel applications in air conditioning, refrigeration, and heating equipment.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 10A
  • Dimensions: 4.05 in (102.87 mm) H x 2.25 in (57.15 mm) W x 2.95 in (74.93 mm) D
  • Standards: UL Listed, CSA, IEC
  • Applications: Air Conditioning, Refrigeration Equipment, Heating Panels
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Phase: 3
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: 100A/QOU
  • Trip Type: Thermal-Magnetic
  • Panel Type: Air Conditioning and Refrigeration Equipment, Heating
  • Breaker Type: Standard
  • AIC rating: 10kA @ 240V
  • Connection: Bolt-On
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Wire Size: AWG 14 to AWG 2 (Aluminium/Copper)
  • MCM Size: Min. 14 AWG, Max. 2 AWG
  • Certification: IEC, UL listed
  • Weight: 1.06 lb


Product Identification
  • UPC: 785901489245
  • GTIN: 00785901489245