[C-ZB-RD1/C-ZB-RD1P] Wiring instructions

1. Turn off the power.
   
1. To avoid electric shock and/or equipment damage, disconnect electrical power at the main fuse or circuit breaker before installation and maintenance.
   
2. Be aware that even if the circuit breaker is off, some voltage may remain in the wires — before proceeding with the installation, be sure no voltage is present in the wiring.
   
2. Unscrew the existing switch/dimmer from the wall and before removing the wires note where the wires are connected. Taking a photo is also useful for comparison.
3. Connect the device according to the diagrams shown below for either a 1-way or 2-way/multiway system.
   

Please note that it is critical to get the Live and Switched Live the right way around. This is less important on a non-smart switch, but important on smart switches. If you are in any doubt, please use a multimeter or consult with an electrician.

1 Way Wiring

2 Way Wiring

3 Way Wiring

Preferred Method

Alternative Method

Neutral Wiring

LED Bypass Wiring

For RD1 and RD1-Pro LED Bypass Wiring please see our LED Bypass Wiring article.

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