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Square D BJA260401 - Molded Case 40A 600V (2-Pole Breaker)

Square D
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Square D BJA260401 is a 2-pole, 40A molded case circuit breaker from the Powerpact family, designed for thermal magnetic protection in electrical distribution and industrial control panels. It operates at a voltage rating of 600V and provides a 65kA interrupting capacity at 480V, with long-time and instantaneous trip functions for reliable overcurrent protection. The unit measures 5.4 in (137 mm) in height, 2.1 in (54 mm) in width, and 3.5 in (89 mm) in depth, weighs 1.9 lb, and features an I-Line style plug-in connection with aluminum mechanical lugs on the OFF end and I-Line connection on the ON end. It complies with standards including UL 489, CSA C22.2 No 5, NEMA AB1, and EN/IEC 60947-2, and holds certifications from UL, IEC, CCC, EAC, CSA, and NOM. This breaker is suitable for single-phase applications with AB phase connection and operates within a temperature range of -13 to 158 °F (-25 to 70 °C).

Key Features & Specifications
  • Type: Molded Case
  • Family: Powerpact
  • Poles: 2
  • Current Rating: 40A
  • Voltage Rating: 600V
  • Interrupt Rating: 65kA at 480V
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: 125A/BJ
  • 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
  • Min. Wire Size: 14 AWG
  • Max. Wire Size: 2 AWG
  • Phase: 1
  • Phase Connection: AB
  • Dimensions: 5.4 in (137 mm) x 2.1 in (54 mm) x 3.5 in (89 mm) (Height x Width x Depth)
  • Weight: 1.9 lb
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Panel Type: Electrical Distribution Equipment, Industrial Control Panels
  • Standards: GB 14048.2, NMX J-266, NEMA AB1, EN/IEC 60947-5-1, CSA C22.2 No 5, UL 489, EN/IEC 60947-2
  • Certification: UL, IEC, CCC, EAC, CSA, NOM
  • Country of Origin: United States


Product Identification
  • UPC: 785901058373
  • GTIN: 00785901058373