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Westinghouse HLD3400 - Molded Case Circuit Breaker 400A 600V 3P

Cutler Hammer
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The Westinghouse Cutler-Hammer HLD3400 is a molded case circuit breaker designed to provide reliable overcurrent protection for industrial power distribution systems. It features a 400A current rating and a 600V AC voltage rating, housed within a compact, robust L-frame construction measuring 4.06 in (D) x 8.25 in (H) x 8.25 in (W) and weighing 21 lb. This UL-listed, three-pole breaker utilizes a thermal-magnetic trip unit with long-time and instantaneous (LI) functions to ensure protection coordination and offers a high interrupting capacity of 65kA at 480V AC. Its feed-thru connection design makes it suitable for a wide range of demanding three-phase applications, including panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with Long-Time and Instantaneous (LI) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 4.06 in (Depth) x 8.25 in (Height) x 8.25 in (Width)
  • Standards: UL Listed
  • Applications: Industrial Power Distribution, Panelboards, Switchboards, Motor Control Centers
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 400A
  • AIC Rating: 65kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: L Frame
  • Trip Type: Thermal-Magnetic
  • Breaker Type: Molded Case
  • Mounting: Fixed
  • Certification: UL Listed
  • Terminal Connection: Feed-Thru
  • Standards: UL 489
  • Weight: 21 lb
  • Country of Origin: United States


Product Identification
  • UPC: 786679006566
  • GTIN: 00786679006566