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Square D HDM36090 - 3-Pole 90A Molded Case Circuit Breaker (600V)

Square D
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Square D HDM36090 is a 3-pole PowerPact H-Frame molded case circuit breaker designed for overload and short-circuit protection in commercial and industrial electrical systems. It is rated for 90A at up to 600V and provides an interrupting capacity of 18kA at 480V, utilizing a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions. The unit measures 6.4 in (163 mm) x 4.09 in (104 mm) x 3.4 in (86 mm) and weighs 5 lb, featuring a bolt-on connection and supporting wire sizes from AWG 14 to AWG 3/0 for aluminum or copper terminals. It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, with certifications from UL, CSA, and NOM, and operates within a temperature range of 28-158 °F (-2-70 °C). This breaker is suited for panel configurations in commercial and industrial applications requiring reliable, code-compliant circuit protection.

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
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Current Rating: 90A
  • Mounting Type: Unit Mount
  • Terminal Compatibility: Copper/Aluminum
  • Application: Commercial, Industrial


Part Number: HDM36090