Lex 400A 3 Phase Power Input Panel Exterior Generator Hook Up 120/208

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Lex 400A 3 Phase Power Input Panel Exterior Generator Hook Up 120/208 VAC NEMA 3R

400 A, 3 Phase, 120/208 VAC, Male Cams (black, red, blue, white, green) Phase Rotation, 2 Wire Stop/Start Terminals, Kirk Key Provision, NEMA 3R Weatherproof, aluminum housing


400 Amp, 3 Phase, 120/208 VAC Power Input Panel. UL Listed NEMA Type 3R for outdoor use. Power Input panels provide a safe, convenient and economical way to connect temporary emergency power from portable generators to a building, in conjunction with a transfer switch.

Markets Served

  • Industrial
  • Generator Rental
  • Construction
  • Disaster Relief


Power Input Panels are generally permanently mounted to the outside of a building. It has to be located so that the associated portable generator is not near any HVAC air intakes for the facility that might draw in the generator exhaust fumes. The portable generator is connected to the Power Input Panel using 4/0 feeder cable with Cam-type Series 16 connectors. The Power Input Panel is permanently connected to a transfer switch (not supplied by Lex) that is used to switch the building electrical supply from domestic power to the portable generator. A transfer switch must be used to switch the building power between the domestic power supply and the generator for safety and to meet NEC requirements.

Typical Uses

Typical applications include:

  • Gas/Service Stations
  • Convenience Stores
  • Hardware Stores
  • Department Stores
  • Pharmacies
  • Emergency Services
  • Banks/ATMs
  • Housing complexes
  • Publically Traded Companies (per Sarbanes-Oxley Act)
  • Security Firms

Features & Benefits

  • Safe, convenient and economical way to connect emergency generator power to a building, in conjuction with a transfer switch
  • Cables with Series 16 Cam-type connectors can connect directly to the inputs, saving crucial time in emergency situations
  • Cables drape downward for lowest profile against wall
  • Tamper proof design limits access to connected cables
  • Weatherproof construction for installation on building exterior, ensures long life
  • Dead front panel covers all exposed electrical parts for added safety
  • Padlock hasp prevents unauthorized entry
  • Individual cable holes restrict access reducing theft


  • Rating: PIP400-C5M-3F-BRB: 400 Amp, 3 Phase, 120/208 VAC, 60 Hz, 4 Pole, 5 Wire
  • Agency Approval: UL Listed Type 3R Rainproof for entire device
  • Input: (5) 16 Series Cam-Type male device
  • Connection to Building Wiring: (5) Lug terminals: #2 AWG to 600MCM
  • Overcurrent Protection: None
  • Enclosure Material: Fiberglass
  • Overall Dimensions: 30-1/2"h x 21"w x 10-1/2"d
  • Approximate Weight: 58 Lbs.

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