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Square D BGA34125Y - Molded Case Circuit Breaker 125A 480V

Square D
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Square D BGA34125Y is a PowerPact B series molded case circuit breaker designed for overcurrent protection in electrical distribution equipment and industrial control panels. This three-pole, 125A thermal magnetic breaker operates at 480Y/277 VAC with a 35kA interrupting rating at 480V and features LI (Long-Time and Instantaneous) trip functions. The unit measures 5.4 in (137 mm) x 3.2 in (81 mm) x 3.5 in (89 mm) and weighs 3.79 lb, with an I-Line style plug-in connection and aluminum mechanical lugs on the load end. It complies with UL 489, CSA C22.2 No 5, NEMA AB1, EN/IEC 60947-2, GB 14048.2, and NMX J-266 standards, and holds certifications from UL, IEC, CCC, EAC, CSA, and NOM. Typical applications include industrial control panels and electrical distribution equipment requiring reliable overcurrent protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case
  • Family: Powerpact
  • Frame Size: 125A/BG
  • Poles: 3
  • Phase: 3
  • Phase Connection: ABC
  • Current Rating: 125A
  • Voltage Rating: 480V
  • AIC rating: 35kA@480V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Terminal Connection: Al Mechanical Lug OFF End, I-Line ON End
  • Wire Size: AWG 14...AWG 2/0 aluminium/copper
  • Dimensions: 5.4 in (137 mm) x 3.2 in (81 mm) x 3.5 in (89 mm) (Height x Width x Depth)
  • Weight: 3.79 lb
  • Temp Rating: Minimum Operating Temp -13 Degrees F Max. Operating Temp.158 Degrees F
  • Standards: GB 14048.2, CSA C22.2 No 5, NEMA AB1, EN/IEC 60947-5-1, UL 489, EN/IEC 60947-2, NMX J-266
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Country of Origin: Mexico


Product Identification
  • UPC: 785901069553
  • GTIN: 00785901069553