Motor / Pump Protection Relays These relays are useful for protection of 3-phase AC induction motors against various hazards. With their unique advantages they eliminate use of a thermal/bimetal relay for motor protection. Being current sensing, they are to be selected according to motor rating and are available for practically all ranges of motors. These relays are ideally suitable for Air-conditioning Compressor motor protection, as also for motors in machines, conveyors, cranes/hoists and lifts, and for pumps.
Fixed/adjustable under/Over trip settings for parameters.
Fixed/adjustable trip delays and Power On delays
Built-in or external power supply
Resetting – Auto or Manual
Output contacts : 1 CO or 2 CO
Choice of enclosures (DIN-Rail, Flush)
Models with Micro-Controller based design
2 line alpha-numeric LCD display (for F3 VSR1/2)
Serial Communication (RS232) port (for F3 VSR1/2 models)