We are a prominent manufacturer ofUnder Plus Over Voltage Relaythat is used for protecting gensets, pumps, motors, shunt caps, transformers, etc. from damage due to transient blackouts, brownouts & for auto start stop o AMF panels a low or high in all or any phase generates a changeover signal. Two potential free c/o contacts are given for breaker tripping Relay is auto reset. Both under & over & voltage of ourUnder Plus Over Voltage Relayare settable. Time is fixed at 3-5 sec Hysterisis of 5-15 V for transient protection is provided.