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Square D QOB3701021 - Molded Case Breaker 70A 3P (10kA AIC)

Square D
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Square D QOB3701021 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase electrical systems. It features a 70A current rating and a 120/240VAC voltage rating, housed within a compact 3.1 in (79 mm) x 3.0 in (76 mm) x 2.9 in (74 mm) frame with a bolt-on connection and pressure plate terminals. This thermal-magnetic breaker is CSA and UL Listed, ensuring compliance with industry safety standards for use in Square D NQOD panelboards and similar industrial applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Shunt Trip, Thermal Magnetic Protection
  • Voltage Rating: 120/240VAC
  • Current Rating: 70A
  • Frame Size: 100A/QO
  • AIC Rating: 10kA @ 240V
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 8 to AWG 2, Copper/Aluminum (MCM: Min 4 AWG, Max 2 AWG)
  • Functions: Long-Time and Instantaneous Trip
  • Panel Type: Square D NQOD Panelboards
  • Standards & Certification: CSA, UL Listed
  • Dimensions: 3.1 in (79 mm) H x 3.0 in (76 mm) W x 2.9 in (74 mm) D
  • Weight: 1.34 lb
  • Operating Temperature: -25°C to 70°C (-13°F to 158°F)
  • Family: QOB Series
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901031031
  • GTIN: 00785901031031