Square D QMB3400LAW Panel Mount Switch - Essential Electric Supply
Square D QMB3400LAW - Circuit Breaker 400A 600V (18kA AIC @480V)
Square D QMB3400LAW Panel Mount Switch - Essential Electric Supply
Square D QMB3400LAW - Circuit Breaker 400A 600V (18kA AIC @480V)

Square D QMB3400LAW - Circuit Breaker 400A 600V (18kA AIC @480V)

Square D
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Square D QMB3400LAW is a UL-listed panel-mounted circuit breaker designed for industrial power distribution systems requiring 400A protection in 3-phase applications. This 600V-rated breaker features an 18kA interrupting capacity at 480V, housed in a 35-inch (889 mm) wide NEMA 1 enclosure with a robust LAP frame design. Compliant with UL standards, the single-configuration 3-pole breaker weighs 16.33 lb and is manufactured in the United States for reliable performance in commercial and industrial power management applications.

Key Features & Specifications
  • Type: QMB Series E1-E2 molded case circuit breaker
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 35 in (889 mm) width
  • Standards: UL LISTED
  • Applications: Industrial power distribution
  • Switch Type: Breaker
  • Configuration: Single
  • Poles: 3
  • AIC rating: 18kA@480V
  • Phase: 3
  • Nema Rating: 1
  • Breaker Type: LAP
  • Compatible Frames: LAP
  • Weight: 16.33 lb
  • Country of Origin: United States
Product Identification
  • UPC: 785901785064
  • GTIN: 00785901785064