08/27/2021
New from Roam Technologies
Three-Phase 400 Amp Manual Transfer Switch Panels with Cam-Locks
Roam's MTC 7003 ES4Kv series ("v" = Voltage Code) of 400 Amp Manual Transfer Switch panels provide a secure and easy-to-connect Cam-Lock connection between a generator and building main power, letting you switch a building main circuits (by means of physically turning a switch) between utility power and generator power. Roam's Manual Transfer Switch (MTS) panels combine a Generator Connection Box and a Transfer Switch, providing a single-panel solution for exterior connection and switching of emergency power. Roam's MTS panels are UL 1008 listed and use E1016 (J-Series /16 Series) Male Cam-Lock connectors.
Roam's line of MTS panels includes Service Entry Rated panels, Switched Neutral panels, panels with no Neutral connection, and Alternate Wire capable panels for critical emergency power. These panels are all built with a dedicated wire chase (wireway) in the back to allow safe cable entry (via conduit) from the bottom. Roam's MTS panels all use Open (Open Transition) transfer switches, with On-Off-On corresponding to Utility-Off-Generator positions.
Service Entry Rated Option - Many of Roam's MTC 7003 ES4Kv series Manual Transfer Switch panels are Service Entry rated, meaning that these panels are suitable for use as service equipment/service disconnects. A service disconnect is simply the first disconnect between the external power source (utility or generator) and building main circuits. All of our Service Entry rated MTS panels have a "-SE" extension in their part number. Service Entry rated panels are available with a standard UL listing (USA), but not with a cUL (Canadian) listing.
Switched Neutral Option - Normally, MTS panels are built with the Neutral connection not running through the Transfer Switch (frequently referred to as a "solid" Neutral). However, Roam does offer a Switch Neutral option, where the Neutral connection is switched through Transfer Switch (i.e., an additional pole runs through the Transfer Switch). Switch Neutral panels are typically used when the generator is grounded as a separately derived system at the site. It is important to be aware that Switched Neutral panels can not also be Service Entry rated under UL 1008. We advise that before selecting a Switch Neutral option, you should consult a qualified electrical designer who is familiar with your site and local electrical codes. All of Roam's Switched Neutral rated MTS panels have a "-SN" extension in their part number.
Alternate Wire Option for Critical Emergency Power - Roam offers an Alternate Wire option for its MTC 7003 ES4Kv 400A Manual Transfer Switch panel line designed for critical emergency power users, such as police/fire/EMS departments, utilities, government agencies, and military bases. This option allows generators to be securely connected to the MTS—even when Cam-Lock connectorized cables are unavailable.
Roam MTS panels with this option can accept unterminated cables (90º C insulation, copper wire only) of any size from 4 AWG to 350 MCM through special spring cap-covered access ports. The electrician making the emergency hook up simply opens the inside front panel, feeds the stripped end of the cables up to a set of dedicated lugs inside the MTS panel, tightens those lugs to the specified torque, and then closes and secures the inside front panel, and a power connection to the generator is ready for use.
Note that Alternate Wire terminals are for emergency use only; installers should never use both Cam-Lock connectors and Alternate Wire terminals at the same time. Installers should also check to ensure that the cable size/type they are using can support the Amperage that may be drawn.