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Square D N400M - Main Breaker Kit 400A 347V AC

Square D
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Square D N400M is a main breaker installation kit designed to facilitate the mounting and connection of main circuit breakers in NF and NQ panelboards. It is rated for 400 amps at 347 volts AC and is compatible with LI, LC, LAL, and LHL circuit breakers. The kit measures 20.0 inches in width by 62.0 inches in height, weighs 13.49 lb, and includes mounting plates, cover plate, labels, screws, brackets, rail extensions, splices, washers, and connectors for field or factory assembly. It is cULus certified and manufactured in Mexico by Schneider Electric. This kit is typically used in industrial and commercial power distribution systems requiring a 400A main breaker installation.

Key Features & Specifications
  • Type: N400
  • Amperage: 400A
  • Voltage Rating: 347V AC
  • Compatible Breakers: LI, LC, LAL, LHL
  • Panelboard Series: NF (also compatible with NQ)
  • Mounting Type: Installation kit with mounting plates and brackets
  • Includes: Cover plate, label, mounting plate, screws, brackets, rail extensions, rail splices, washers, connectors
  • Certification: cULus
  • Country of Origin: Mexico
  • Dimensions: 20.0 in x 62.0 in
  • Weight: 13.49 lb
  • Depth: 5 3/4 inches
  • Warranty: 18 months


Product Identification
  • UPC: 785901787617
  • GTIN: 785901787617