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Cutler Hammer BJ3125 - 3-Pole Molded Case Breaker 125A 240V

Cutler Hammer
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Cutler Hammer BJ3125 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial electrical systems. It features a 125A current rating and a 240V AC voltage rating, housed in a compact, durable plug-in unit measuring 8" x 3.5" x 3.5" and weighing 2.5 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous (LI) protection, is certified to UL 489 and Federal Specification W-C375, and offers a 10kA interrupting capacity at 240V. Its design supports conductor sizes from 2 AWG to 300 kcmil, making it suitable for feeder and branch circuit protection in commercial and industrial panelboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Plug-In Connection
  • Voltage Rating: 240V AC
  • Current Rating: 125A
  • Dimensions: 8 in (L) x 3.5 in (H) x 3.5 in (W)
  • Standards: UL 489, Federal Specifications Classification W-C375
  • Applications: Industrial Feeder and Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Three-Pole
  • Phase: 3
  • AIC Rating: 10kA @ 240V
  • Connection: Plug-In
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Wire Size: 2 AWG to 300 Kcmil (Aluminum/Copper)
  • Certification: UL 489, Federal Specifications Classification W-C375
  • Family: BJ Series
  • Country of Origin: Dominican Republic
  • Weight: 2.5 lb


Product Identification
  • UPC: 786676368308
  • GTIN: 00786676368308