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Square D LHL36400MB - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LHL36400MB is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact H-frame chassis measuring 279.4 mm in height, 152.4 mm in width, and 148.34 mm in depth with a weight of 16.301 lb. This thermal magnetic breaker is constructed for feed-thru connection with lug terminals and complies with UL, CSA, and IEC standards for safety and performance. Its typical applications include protecting feeders and branch circuits in commercial and industrial facilities, compatible with wire sizes from AWG 1 to 600 kcmil.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 279.4 mm H x 152.4 mm W x 148.34 mm D (11 in x 6 in x 5.84 in)
  • Standards: UL Listed, CSA, IEC
  • Applications: Industrial and Commercial Power Distribution, Feeder and Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • Connection: Feed-Thru
  • Terminal Connection: Lug
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: H
  • Trip Type: Thermal Magnetic
  • Breaker Type: Molded Case
  • AIC rating: 35kA @ 480V
  • Wire Size: AWG 1 to 600 kcmil Aluminum/Copper, AWG 1 to 250 kcmil Aluminum/Copper
  • Certification: UL Listed, CSA, IEC
  • Family: LHL Series
  • Country of Origin: Mexico
  • Weight: 16.301 lb


Product Identification
  • UPC: 785901005490
  • GTIN: 00785901005490