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Square D QOU315 - 3-Pole Circuit Breaker 15A 240V (10kA AIC)

Square D
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Square D QOU315 is a three-pole molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial and commercial electrical systems. It features a 15A 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 1.13 lb. The breaker is constructed with thermal-magnetic protection for both long-time and instantaneous trip functions, achieving a 10kA interrupting rating at 240V, and complies with key industry standards including UL, CSA, and IEC. Its slotted box lug terminals allow for reversible line/load connections and accept copper or aluminum wire from 14 AWG to 2 AWG, making it suitable for unit-mount applications in HVAC, refrigeration, and heating equipment panels.

Key Features & Specifications
  • Type: Three-pole, molded case, thermal-magnetic circuit breaker
  • Voltage Rating: 240V AC
  • Current Rating: 15A
  • Frame Size: 100A/QOU
  • Interrupting Rating (AIC): 10kA @ 240V
  • Poles: 3
  • Phase: 3
  • Protection Functions: Long-time and instantaneous trip
  • Trip Type: Thermal-magnetic
  • Connection: Unit Mount
  • Terminal Connection: Slotted Box Lug (reversible line and load)
  • Wire Size Range: 14 AWG to 2 AWG (aluminium/copper)
  • Standards & Certification: UL listed, CSA, IEC
  • Dimensions: 4.05 in H x 2.25 in W x 2.95 in D (102.87 mm x 57.15 mm x 74.93 mm)
  • Weight: 1.13 lb
  • Breaker Type: Standard
  • Typical Applications: Air conditioning, refrigeration equipment, and heating panels


Product Identification
  • UPC: 785901418863
  • GTIN: 00785901418863