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H3CR Timer: Wiring Power Supply and Input Devices

FAQ No. FAQ03007

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What should I be aware of when wiring the power supply and input devices for the H3CR-A/H[]RL Analog Timers?


For the power supply of the input device (*1) of the H3CR-A/H[]RL, use an isolating transformer (*2) with the primary and secondary windings mutually isolated and the secondary winding not grounded.

Correct Wiring Example

Incorrect Wiring Example