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Square D LAL3640036M1021 - Molded Case Circuit Breaker 400A 600V 3P

Square D
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Square D LAL3640036M1021 is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact, durable frame measuring 279.4 mm H x 112.78 mm W x 78.49 mm D and weighing 20 lb. This feed-thru style, three-pole breaker is engineered to meet rigorous industry standards and offers an interrupting capacity of 30kA at 480V AC. Its design is suitable for integration into panelboards and switchboards where rapid, selective tripping is required for equipment protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Instantaneous Trip (Magnetic Only)
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 11 in H x 4.44 in W x 3.09 in D (279.40 mm x 112.78 mm x 78.49 mm)
  • Weight: 20 lb
  • Standards: Designed to meet applicable UL and IEC standards
  • Applications: Industrial power distribution, panelboard and switchboard protection
  • Phase: 3
  • Poles: 3
  • Connection: Feed-Thru
  • Protection: Magnetic Only
  • AIC Rating: 30kA @ 480V AC
  • Functions: Instantaneous Trip
  • Family: LAL Series


Product Identification
  • UPC: 785901334897
  • GTIN: 00785901334897