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Square D HDA261254 - Molded Case Circuit Breaker 125A 600V 2-Pole

Square D
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Square D HDA261254 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a 125A current rating and a 600V voltage rating, suitable for single-phase BC connection applications. The breaker is constructed with a compact H-frame design, measuring 163 mm x 104 mm x 86 mm (HxWxD) and weighing 3.001 lb, and utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection functions. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring safe operation within a temperature range of -2 to 70 °C. This I-Line style plug-in breaker is typically applied in panelboards and switchboards, offering an interrupting capacity of 18kA at 480V and accepting wire sizes from 14 AWG to 3/0 AWG for copper or aluminum conductors.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Plug-In Connection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 6.4 in (163 mm) H x 4.09 in (104 mm) W x 3.4 in (86 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Phase: 1
  • Voltage: 600V
  • Amperage: 125A
  • AIC rating: 18kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: H
  • Wire Size: 14 AWG to 3/0 AWG (Copper or Aluminum)
  • Certification: UL, CSA, NOM
  • Phase Connection: BC
  • MCM Size: Min. 14 AWG, Max. 3/0 AWG (Cu/Al)
  • Terminal Connection: I-Line, Lug
  • Family: Powerpact
  • Country of Origin: United States
  • Weight: 3.001 lb


Product Identification
  • UPC: 785901912453
  • GTIN: 00785901912453