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Square D QBA32125 - 3-Pole Molded Case Breaker 125A 240V

Square D
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The Square D QBA32125 is a three-pole molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase industrial power distribution systems. It features a 125A current rating and a 240V AC voltage rating, with a 10kA interrupting capacity at its rated voltage. The breaker is constructed with a compact Q-frame design, measuring 164.34 mm H x 114.3 mm W x 99.82 mm D and weighing 6.66 lb, and utilizes a thermal-magnetic trip unit for combined long-time and instantaneous protection. It complies with UL, CSA, NEMA, and NOM-003-SCFI-2000 standards and is rated for operation in temperatures from -25°C to 70°C. This I-Line style plug-in breaker is typically applied in panelboards and switchboards for motor control and feeder circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Dimensions: 164.34 mm H x 114.3 mm W x 99.82 mm D (6.47 in x 4.5 in x 3.93 in)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000
  • Applications: Industrial Power Distribution, Motor Control, Feeder Protection
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 3
  • AIC Rating: 10kA @ 240V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: Q
  • Certification: UL, CSA, NOM
  • Phase Connection: ABC


Product Identification
  • UPC: 785901405184
  • GTIN: 00785901405184