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undervoltage measuring relay RUR 3

09980718, Undervoltage measuring relays, Switching threshold 160 V ... 240 V AC

undervoltage measuring relay RUR 3

09980718, Undervoltage measuring relays, Switching threshold 160 V ... 240 V AC

Details

Undervoltage measuring relays, Switching threshold 160 V ... 240 V AC

Undervoltage measuring relays detect when the supply voltage is no longer met and pass this information on to higher-level controls or signalling devices. They are used to switch off electrical consumers when the voltage is too low. The RUR series monitoring relays make it possible to report undervoltage with a fixed hysteresis. The output relay energises when the measured voltage of all connected outer conductors exceed the fixed switching threshold including the hysteresis. If the voltage of one of the connected outer conductors drops below the switching threshold value, the output relay switches off again. A front LED indicates the current status. The changeover contact allows for flexible use. The RUR 3 has an adjustable switching threshold.

RUR 1 switching threshold: 0.85 × Un, RUR 3 switching threshold: adjustable from 160 V ... 240 V, no external supply voltage necessary, potential-free changeover contact, Module width just 1 unit, protection class IP 20

quick fastening to mounting rail, any installation position

Automatic control of emergency generators and emergency lighting in all types of buildings and industrial facilities.

Single-phase networks can be monitored by wiring all measuring inputs with an external conductor. When electrical consumers generate reverse voltages higher than the Us threshold, the failure of an external conductor can no longer be detected.

Undervoltage measuring relays, Switching threshold 160 V ... 240 V AC

Undervoltage measuring relays detect when the supply voltage is no longer met and pass this information on to higher-level controls or signalling devices. They are used to switch off electrical consumers when the voltage is too low. The RUR series monitoring relays make it possible to report undervoltage with a fixed hysteresis. The output relay energises when the measured voltage of all connected outer conductors exceed the fixed switching threshold including the hysteresis. If the voltage of one of the connected outer conductors drops below the switching threshold value, the output relay switches off again. A front LED indicates the current status. The changeover contact allows for flexible use. The RUR 3 has an adjustable switching threshold.

RUR 1 switching threshold: 0.85 × Un, RUR 3 switching threshold: adjustable from 160 V ... 240 V, no external supply voltage necessary, potential-free changeover contact, Module width just 1 unit, protection class IP 20

quick fastening to mounting rail, any installation position

Automatic control of emergency generators and emergency lighting in all types of buildings and industrial facilities.

Single-phase networks can be monitored by wiring all measuring inputs with an external conductor. When electrical consumers generate reverse voltages higher than the Us threshold, the failure of an external conductor can no longer be detected.