Generator Interface Panel - Tap Box - Inlet Box -
Docking Station - Generator Plug
Three-Phase 400A-600MCM

Supporting up to 400 Amps per panel and 600 MCM cable lugs on the wireway side, Roam's MTC® 6003 ESHKvB series ("v" = Voltage Code) of Generator Interface Panels (Generator Connection Boxes) provide a rugged and cost-effective exterior connection point for high-capacity emergency power.

Roam's 400A-600MCM Generator Interface Panels use E1016 (J-Series/16 Series) Male Cam-Lok* brand connectors supporting up to 400A, along with bus bar extensions that support up to two 600 MCM cable lugs per connector. Roam's 400A-600MCM panels are constructed from powder coated aluminum and are also built with a dedicated wire chase (wireway) in the back to allow safe cable entry (via conduit) from the bottom.

The standard in safety and outdoor reliability, Roam's line of Generator Interface Panels makes connecting a portable generator to your site fast, easy, and most importantly—safe. The MTC 6003 ESHKvB line is part of Roam's UL Listed (US & Canada) series of three-phase Generator Interface Panels. Generator Interface Panels like those made by Roam are also known in various industries under other names such as Generator Connector Panels, Tap Boxes, Inlet Boxes, Docking Stations, Generator Plugs, Gen Boxes, and Generator Quick Connects. Roam uses genuine Cooper Crouse-Hinds Cam-Lok* brand connectors. Similar compatible connectors are sometimes referred to as "Cam-Lock" connectors by their manufacturers, distributors, and/or users.

  • Bottom conduit access via rear wireway
  • Corrosion-resistant powder coating
  • UV-resistant four color labels
  • Built to NEMA 3R standard
  • Internal and external grounding studs
  • Five Male E1016 Cam-Lock connectors
  • Three-phase power, at up to 400A
  • Wireway side accepts up to 600MCM cable
  • 240 VAC, 480 VAC, & 600 VAC rated panels
  • Spot-welded aluminum construction
  • Custom labels & configurations available
  • Brown-Orange-Yellow connectors at 480VAC


Roam's MTC 6003 ESHKvB 400A-600MCM Generator Interface Boxes accept either #2 to 2/0 or 2/0 to 4/0 cables via Cam-Lock plugs on the generator cable side, and from #2 AWG to 600MCM cables on the internal wireway side. The wireway connection supports up to dual 600MCM cables (via bolted on lugs) on internal bus bars. Note that connectors are rotated by 90° from normal front facing orientation in this panel.

Voltages up to 600VAC

Roam offers the MTC 6003 ESHKvB Generator Panel in models that support up to 240 VAC (120v, 208v, 230v, 240v)—MTC 6003 ESHK2B, up to 480 VAC (277v, 330v, 440v, 480v)—MTC 6003 ESHK4B-BOY, and up to 600 VAC (575v, 577v, 600v)—MTC 6003 ESHK6B. All of the 400A-600MCM panels are UL Listed and cUL Listed (Canada) at those voltage levels. Brown-Orange-Yellow color coding (for labels, Cam-Locks, & Spring Caps) is normally used for most 480 VAC applications.

Canadian Color Coding Available

Any Roam panels with power connectors normally color coded (for Cam-Locks, Spring Caps, and Labels) as L1=Black, L2=Red, & L3=Blue are also available in the typical Canadian color coding format of L1=Red, L2=Black, & L3=Blue. If you need to order a unit with the Canadian color scheme, just add a "-CAN" to the end of the Model Number. If you are connecting to a generator that uses the US color coding (L1=Black, L2=Red, L3=Blue), then you may want the standard US color system (so long as local electrical codes allow).

No Neutral Options Available

Roam's 400A-600MCM Generator Interface Panels (Boxes) can also be ordered with no neutral connection for sites and generator configurations designed for just Ground, L1, L2, and L3 cables. The "No Neutral" versions of these panels are also UL Listed and cUL Listed (Canada). To order a panel without a neutral connector just add a "-NN" to the end of the Model Number. The "No Neutral" panels use only four Cam-Lock connectors.

Model Numbers & Options

Base Model Number Up to 240VAC Up to 480VAC Up to 600VAC No Neutral Connector

The "v" in the part number represents a code of either 2 (for up to 240 VAC panels), 4 (for up to 480 VAC panels), or 6 (for up to 600 VAC panels).

UL-cUL Listed Logo

UL 1008 Listed—US & Canada