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Single-phase voltage monitoring relays

Single-phase voltage monitoring relays are designed for protection of single-phase load against unallowable voltage variations in the mains. They have a wide range of adjustments, including power-on time delay for protection of refrigerating, compressor and air-conditioning equipment.

Single-phase voltage monitoring relays

Single-phase voltage monitoring relays  are designed for protection of single-phase load against unallowable voltage variations in the mains. They have a wide range of adjustments, including power-on time delay for protection of refrigerating, compressor and air-conditioning equipment.

 

All voltage monitoring relays have the resetting ratio (hysteresis) of about 5V. The effective range of our relays is 30-150% of rated voltage. In case of extreme undervoltage and voltage spikes, the relay tripping acceleration is activated.

 

The voltage monitoring relays provide for automatic load energizing after voltage parameters recovery within predetermined time relay. The relays are compact in size and weight.

 

They can be utilized both as independent switching devices and as controls for other switching devices, like magnetic starters.

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