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LHL3640033M

Square D
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Save $4,837.61
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Square D LHL3640033M is a 3-pole molded case circuit breaker from the LHL Series, designed for instantaneous magnetic-only protection in industrial power distribution systems. It is rated for 400A at up to 600VAC, with an interrupting capacity of 35kA at 480VAC, and operates on a 3-phase system. The L Frame unit weighs 20 lb, features a feed-thru connection, and is constructed for unit mount or I-Line mounting. This breaker complies with UL and CSA standards for reliable overcurrent protection. It is typically applied in commercial and industrial settings requiring high-fault-current protection for motors, transformers, and other equipment.

Key Features & Specifications
  • Type: LHL
  • Functions: I - Instantaneous
  • Frame Size: L Frame
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Magnetic Only
  • AIC rating: 35kA@480V
  • Phase: 3
  • Current Rating: 400A
  • Weight: 20 lb
  • Mounting Type: Lug In/Lug Out (Unit Mount and I-Line available)
  • Interrupt Rating: 25 kA at 480 VAC, 50 kA at 250 VDC
  • Certifications: UL Listed, CSA Certified
  • Push-to-Trip manual operation
  • Thermal and magnetic sensing in each pole


Square D LHL3640033M - Molded Case Circuit Breaker 400A 3-Pole