Wago-788-148
Filter module

Filter module; RC filter element; Rated voltage: 230 VAC


Note: To ensure safe operation, residual voltages (caused by cable capacitance of long connecting lines or leakage currents of semiconductor switches and their protective circuits) must be lower than the dropout voltages of the relays.

For DC relays, the dropout voltage is determined as ≤ 5% of the nominal voltage; For AC relays it is 15% of the nominal voltage (according to VDE 0435).

The relay cannot be reset if high residual voltage is present. Depending on the cause of the residual voltage, changing the cable route or connecting parallel RC elements may solve this problem.

• To guarantee safe operation, residual voltages (due to the cable capacitance of long connection lines or leakage currents of semi-conductor switches and their protective circuits) must be lower than the release voltage of the relays.
• For DC relays, the release voltage is specified with ≤ 5% of the nominal voltage; for AC relays, it is 15% of the nominal voltage (per VDE 0435).
• The relay may not reset if a high residual voltage exists. Depending on the reason for the residual voltage, changing the cable routing or a parallel connection of an RC element could remedy this situation.

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