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HDM36020

Square D
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Square D HDM36020 is a 3-pole molded case circuit breaker from the Powerpact H frame family, designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 20A continuous current at up to 600VAC, with an interrupting capacity of 18kA at 480VAC and 14kA at 600VAC, and utilizes LI (Long-Time and Instantaneous) trip functions. The unit measures 6.4 in (163 mm) x 4.09 in (104 mm) x 3.4 in (86 mm), weighs 5 lb, and features a bolt-on connection with terminals accepting AWG 14 to AWG 3/0 aluminum or copper wire. It complies with UL 489, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, with certifications from UL, CSA, and NOM. This circuit breaker is suited for commercial and industrial applications requiring reliable branch circuit protection in three-phase systems.

Key Features & Specifications
  • Manufacturer: Schneider Electric
  • Item Subcategory: Molded Case
  • Family: Powerpact
  • Country of Origin: United States
  • Type: HDM
  • Dimensions: 6.4 in (163 mm) x 4.09 in (104 mm) x 3.4 in (86 mm) (Height x Width x Depth)
  • Weight: 5 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: H Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Protection: Thermal Magnetic
  • Wire Size: AWG 14...AWG 3/0 aluminium/copper terminal
  • Certification: UL, CSA, NOM
  • AIC rating: 18kA@480V
  • Phase: 3
  • Current Rating: 20A
  • Interrupt Rating: 14kA at 600 VAC
  • UL 489 Listed


Square D HDM36020 - Molded Case Circuit Breaker 20A 3-Pole