Test Switch Box Product MW Engineers design and manufacture the Test Switch Box for level crossing applications, providing maintainers with a controlled method of operating crossing warning equipment independent of the main supply. The Test Switch Box enables the highway signals, the half-boom barriers, the warning bells and warning lights (each where fitted) to operate directly from the standby power supply, with the main supply switched off. This allows each element of the crossing installation to be proven and tested without reliance on the mains feed. The enclosure is manufactured from high quality stainless steel with engraving on the face of the door. The front panel features a NORMAL / TEST selector switch with indicator lamps, and is engraved with the instruction that lights out conditions must be reported to the Network Controller. The internal panel is fitted with terminal connections for the standby supply and crossing equipment wiring. The Test Switch Box forms part of the MWE Rail level crossing boxes range, designed for challenging trackside environments. Part number M10002.