Voltage & frequency relays

Self-powered by the voltage to be monitored.

Visual indication of trip cause.

DIN rail mounting.

Protects three-phase installations against voltage variations between phases, incorrect sequence of phases and phase loss.

Adjustable minimum and maximum thresholds.

Adjustable trip time delay.

U3S model:

Model U3S-420 is valid for 400 and 440 nominal voltage.

U3P and U3N models:

Two independent output relays.

U3N model includes protection against neutral loss.

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FANOX ELECTRONIC

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Timers

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