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Square D QOU3100 - 3-Pole 100A Circuit Breaker (10kA AIC, 240V)

Square D
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Square D QOU3100 is a three-pole molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial equipment. It features a 100A current rating and a 240V AC voltage rating, housed within a compact 100A frame with dimensions of 113.03 mm H x 57.15 mm W x 74.93 mm D and a weight of 1.45 lb. The breaker is constructed with non-reversible slotted box lug terminals, accepts wire sizes from 12 AWG to 2/0 AWG, and complies with CSA, IEC, and UL standards. Its thermal-magnetic protection with long-time and instantaneous trip functions and a 10kA interrupting rating at 240V makes it suitable for unit-mount applications in air conditioning, refrigeration, and heating panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 100A
  • Dimensions: 113.03 mm H x 57.15 mm W x 74.93 mm D (4.45 in x 2.25 in x 2.95 in)
  • Standards: CSA, IEC, UL Listed
  • Applications: Air Conditioning, Refrigeration Equipment, Heating Panels
  • Switch Type: Circuit Breaker
  • Configuration: Unit Mount
  • Phase: 3
  • Amperage: 100A
  • AIC Rating: 10kA @ 240V
  • Connection: Slotted Box Lug (Non-Reversible Line and Load)
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 100A/QOU
  • Trip Type: Thermal-Magnetic
  • Panel Type: Air Conditioning and Refrigeration Equipment, Heating
  • Breaker Type: Standard
  • MCM Size: Min. Wire Size 12 AWG, Max. Wire Size 2/0 AWG
  • Wire Size: AWG 12 to AWG 2/0 (Aluminium/Copper)
  • Certification: IEC, UL Listed
  • Family: QOU Series
  • Weight: 1.45 lb


Product Identification
  • UPC: 785901060338
  • GTIN: 00785901060338