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Square D QOU370 - 3-Pole Circuit Breaker 70A 240V

Square D
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Square D QOU370 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial applications. It features a 70A current rating and a 240V AC voltage rating, housed within a compact 100A frame with dimensions of 4.05 in (102.87 mm) H x 2.25 in (57.15 mm) W x 2.95 in (74.93 mm) D and a weight of 1.45 lb. The breaker is CSA, IEC, and UL listed, ensuring compliance with key industry standards for safety and performance in demanding environments such as air conditioning, refrigeration, and heating equipment panels.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic Protection, Standard Breaker Type
  • Voltage Rating: 240V AC
  • Current Rating: 70A
  • 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: CSA, IEC, UL listed
  • Applications: Air Conditioning and Refrigeration Equipment, Heating Panels
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Phase: 3
  • Amperage: 70A
  • AIC Rating: 10kA @ 240V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 100A/QOU
  • Breaker Type: Standard
  • MCM Size: Min. Wire Size 12 AWG, Max. Wire Size 2/0 AWG
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Wire Size: AWG 12 to AWG 2/0 (aluminium/copper)
  • Certification: IEC, UL listed
  • Family: QOU Series
  • Country of Origin: Mexico
  • Weight: 1.45 lb


Product Identification
  • UPC: 785901060307
  • GTIN: 00785901060307