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Square D HDP36040 - 40A 3-Pole Molded Case Circuit Breaker

Square D
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Square D HDP36040 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a 40A current rating and a 600V AC voltage rating, housed within a compact H-frame measuring 163 mm H x 104 mm W x 86 mm D and weighing 4.16 lb. This three-pole, bolt-on thermal-magnetic breaker is constructed for durability with lug and terminal nut connections, supporting wire sizes from 14 AWG to 3/0 AWG for both copper and aluminum conductors. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards and is rated for an interrupting capacity of 18kA at 480V AC. Typical applications include motor protection, feeder circuits, and main distribution panels within commercial and industrial facilities operating in ambient temperatures from -25°C to 70°C.

Key Features & Specifications
  • Type: HDP Series, Molded Case, Thermal-Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: 163 mm H x 104 mm W x 86 mm D (6.4 in x 4.09 in x 3.4 in)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial Motor Protection, Feeder & Branch Circuits, Main Distribution
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Phase: 3
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: 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)
  • Wire Size: 14 AWG to 3/0 AWG (Copper/Aluminum)
  • Certification: UL, CSA, NOM
  • AIC Rating: 18kA @ 480V AC
  • Terminal Connection: Lug, Terminal Nut
  • MCM Size: Min. 14 AWG, Max. 3/0 AWG (Cu/Al)
  • Weight: 4.16 lb
  • Family: Powerpact
  • Country of Origin: Mexico


Product Identification
  • Manufacturer: Schneider Electric
  • Model: HDP36040