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Square D QOU270 - 70A 2-Pole Circuit Breaker (10kA AIC, 120/240V)

Square D
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Square D QOU270 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 70A current rating and a voltage rating of 120/240V AC, with a compact unit-mount design measuring 113.03 mm H x 38.1 mm W x 74.93 mm D and a weight of 0.77 lb. The breaker is constructed with a thermal-magnetic trip mechanism providing both long-time and instantaneous (LI) protection, and it complies with CSA, IEC, and UL standards for safety and performance. Its typical applications include protection for air conditioning, refrigeration equipment, and heating panels in commercial and industrial settings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal-Magnetic Protection (LI Trip)
  • Voltage Rating: 120/240V AC
  • Current Rating: 70A
  • Frame Size: 100A/QOU
  • AIC Rating: 10kA @ 240V
  • Poles: 2
  • Phase: 1
  • Connection: Unit Mount
  • Terminal Connection: Slotted Box Lug (Reversible Line and Load)
  • Wire Size: 14 AWG to 2 AWG (Min/Max), compatible with AWG 12 to 2/0 aluminium/copper
  • Dimensions: 4.45 in (113.03 mm) H x 1.5 in (38.1 mm) W x 2.95 in (74.93 mm) D
  • Weight: 0.77 lb
  • Operating Temperature: -25 to 70 °C (-13 to 158 °F)
  • Standards & Certification: CSA, IEC, UL Listed
  • Typical Applications: Air Conditioning, Refrigeration Equipment, Heating Panels


Product Identification
  • UPC: 785901418832
  • GTIN: 00785901418832