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Square D LHL3640030DC1616 - Molded Case 400A 500VDC Breaker

Square D
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The Square D LHL3640030DC1616 is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. This three-phase unit operates at a voltage rating of 500VDC with a continuous current rating of 400A and an interrupting capacity of 20kA at 500VDC. The breaker features an L Frame size with a thermal magnetic protection mechanism, utilizing LI (Long-Time and Instantaneous) trip functions, and is configured with three poles and a feed-thru connection. It complies with industry standards for molded case circuit breakers and is suitable for use in switchboards, panelboards, and motor control centers. Typical applications include protection of feeders, branch circuits, and equipment in heavy industrial environments such as manufacturing plants, data centers, and utility substations.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, L Frame, Thermal Magnetic, LI Trip Functions
  • Voltage Rating: 500VDC
  • Current Rating: 400A
  • Dimensions: Depth 42.13 in (107 cm), Width 31.50 in (80 cm), Height 78.39 in (199.1 cm)
  • Standards: Compliant with applicable UL and NEMA standards for molded case circuit breakers
  • Applications: Industrial power distribution, feeder protection, branch circuit protection, motor control centers
  • Poles: 3
  • Connection: Feed-Thru
  • AIC rating: 20kA@500VDC
  • Phase: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: L Frame
  • Weight: 20 lb


Product Identification
  • GTIN: 00785901426325