Protech engineering & controls pvt. Ltd. Presents voltage relays. These are available with pick-up and trip time delay in 3-phase voltage relays. These have smart design to fit on any standard mounting channel and have choice of screw less terminals with 2% accuracy. It provides test and auto/manual reset facility and signal and source [control supply] are separate. It is designed for high reliability, as relay energizes only under fault conditions. Only 1/2 phase voltage relay with user selectable u/v or o/v range by dip switch.
