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Square D HDL36150U44X - Molded Case Breaker 150A 600V 3P LSIG

Square D
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The Square D HDL36150U44X is a Powerpact H-frame molded case circuit breaker designed for comprehensive feeder protection in three-phase industrial power distribution systems. It provides a 150A current rating and 600V voltage rating with solid-state LSIG (Long-Time, Short-Time, Instantaneous, and Ground Fault) protection, featuring an interrupting capacity of 18kA at 480V. The unit is constructed with a compact footprint of 163 mm H x 104 mm W x 86 mm D, weighs 5 lb, and utilizes lug terminals compatible with copper or aluminum conductors from 14 AWG to 3/0 AWG. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards and is rated for operation in ambient temperatures from -2 to 70 °C. This feed-thru breaker is typically applied in panelboards and switchboards for protecting feeders and mains in commercial and industrial facilities.

Key Features & Specifications
  • Type: Powerpact H-Frame Molded Case Circuit Breaker with Solid-State LSIG Protection
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • 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 Feeder and Main Protection in Panelboards/Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 150A
  • AIC Rating: 18kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Solid State
  • Functions: LSIG (Long-Time, Short-Time, Instantaneous, Ground Fault)
  • Frame Size: H
  • Temp Rating: 28-158 °F (-2-70 °C)
  • Terminal Connection: Lug
  • Wire Size: AWG 14 to AWG 3/0 (Copper/Aluminum)
  • Certification: UL, CSA, NOM
  • MCM Size: Min. 14 AWG, Max. 3/0 AWG (Cu/Al)
  • Weight: 5 lb


Product Identification
  • UPC: 785901085478
  • GTIN: 00785901085478