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SIEMENS 6AV6643-0AA01-1AX0 Germany Original

This function requires continuous control supply voltage for timing. Applying control supply voltage, or, if control supply voltage is already applied, opening control input A1-Y1/B1 energizes the output relay after the OFF time t1 is complete. When the following ON time t2 is complete, the output relay de-energizes. The ON & OFF times are displayed by the flashing green LED, which flashes twice as fast during the OFF time. The ON & OFF times are independently adjustable.

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