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Voltage monitoring relay SM 501
DIN railtime delay

voltage monitoring relay
voltage monitoring relay
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Characteristics

Measured/monitored value
voltage
Other characteristics
DIN rail, time delay

Description

The SM 501 is a supply monitoring device which is suitable for providing protection from phase reversal, phase-phase unbalance and phase loss. It is suitable for 3 phase and wire systems through the voltage sensing mechanism. The device has LED status indicators fro the faulty conditions. An adjustable time delay and 2 C/O configuration is included in the product unit.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.