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Square D HDA36100UJ - Molded Case Circuit Breaker 100A 600V 3-Pole

Square D
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Square D HDA36100UJ is a Powerpact H-Frame molded case circuit breaker designed for 3-pole thermal magnetic protection in commercial and industrial power distribution systems. It is rated for 100A continuous current at 600V AC with an interrupting capacity of 18kA at 480V, utilizing a LI (Long-Time and Instantaneous) trip unit for precise overcurrent response. The breaker features an I-Line style plug-in connection with lugs for line and load, weighs 6 lb, and supports wire sizes from AWG 14 to 3/0 aluminum or copper. It is UL Listed and suitable for reverse fed applications, with an 80% continuous current rating. This unit is typically applied in panelboards and switchboards requiring reliable branch circuit protection in three-phase ABC systems.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: HDA36100UJ
  • Type: HDA
  • Family: Powerpact
  • Item Subcategory: Molded Case
  • Amperage: 100 A
  • Voltage Rating: 600 V AC
  • Poles: 3
  • Phase: 3 (ABC)
  • Protection: Thermal Magnetic
  • Trip Unit: Long-Time and Instantaneous (LI)
  • Interrupt Rating: 18kA at 480 V
  • Mounting Type: I-Line plug-in
  • Connection: I-Line style plug-in with lugs for line/load
  • Frame Type: H-Frame
  • Continuous Current Rating: 80%
  • Weight: 6 lb
  • Certifications: UL Listed