For protecting devices against overvoltage and undervoltage
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Operation:
2 thresholds voltage U1 (lower voltage) and U2 (upper voltage) are set via potentiometer. Change of phase voltage on one of phases above or below set voltage thresholds will cause activation of relay.
When the voltage returns in the control phase, the contact goes back at its original state.
- Presence voltage by LED
- Setting U1 150-210V; U2 230-260V
- Hysteresis U1, U2 : 5V
- Activation time: 1.5 S
- Consumption 0.8W
In order to avoid too much frequent changes in case of ongoing fluctuations of voltage (10 per minutes), the relay is locked for 10 minutes.
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