Square D HDA36125 - Molded Case Circuit Breaker 125A 600V 3P
Square D HDA36125 - Molded Case Circuit Breaker 125A 600V 3P
Square D HDA36125 - Molded Case Circuit Breaker 125A 600V 3P
Square D HDA36125 - Molded Case Circuit Breaker 125A 600V 3P

Square D HDA36125 - Molded Case Circuit Breaker 125A 600V 3P

Square D
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Square D HDA36125 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, housed within a compact H-frame construction measuring 163 mm x 104 mm x 86 mm (HxWxD) and weighing 5.456 lb. The breaker complies with UL, CSA, NEMA, and IEC 60947-2 standards and utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) functions for coordinated protection. Its I-Line style plug-in connection and lug terminals support wire sizes from 14 AWG to 3/0 AWG for both copper and aluminum conductors, making it suitable for panelboards and switchboards in commercial and industrial facilities.

Key Features & Specifications
  • Type: HDA Series, Molded Case, Thermal-Magnetic Protection, I-Line Plug-In
  • 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: Fixed
  • Poles: 3
  • Phase: 3
  • Phase Connection: ABC
  • AIC Rating: 18kA @ 480V
  • Connection: I-Line Style Plug-In, Lug Terminal
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous Trip)
  • Frame Size: H
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • MCM Size: Min. 14 AWG, Max. 3/0 AWG (Cu/Al)
  • Wire Size: AWG 14 to AWG 3/0 (Aluminium/Copper Terminal)
  • Certification: UL, CSA, NOM
  • Mounting: Panel Mount
  • Family: Powerpact
  • Country of Origin: Mexico
  • Weight: 5.456 lb


Product Identification
  • UPC: 785901419990
  • GTIN: 00785901419990