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Square D QOB3125SL - Molded Case 125A 3-Pole Breaker

Square D
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Square D QOB3125SL is a 125A, 3-pole molded case circuit breaker from the QOB Series, designed to provide overcurrent protection through long-time and instantaneous trip functions. It operates at 120/240VAC with a 10kA interrupting capacity at 120V and features a bolt-on connection for secure panel mounting. This unit measures 3.500 in (88.900 mm) in height, 2.241 in (56.921 mm) in width, and 2.310 in (58.674 mm) in depth, weighing 0.88 lb, with pressure plate terminals accepting wire sizes from 12 AWG to 2/0 AWG (copper or aluminum). It is UL Listed and CSA certified, making it suitable for industrial applications requiring reliable circuit protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, QOB Series
  • Voltage Rating: 120/240VAC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 10kA@120V
  • Connection: Bolt-On
  • Terminal Connection: Pressure Plate
  • Wire Size: AWG 12 to AWG 2/0 (Copper/Aluminum)
  • Functions: Long Time and Instantaneous Trip
  • Standards: UL Listed, CSA
  • Dimensions: 3.500 in (88.900 mm) x 2.241 in (56.921 mm) x 2.310 in (58.674 mm) (Height x Width x Depth)
  • Weight: 0.88 lb
  • Country of Origin: Mexico


Product Identification
  • UPC: 78590103134
  • GTIN: 00785901031345