User Manual Q&AAnswer
Jan 28, 2025 - 09:24 PM
To install the Shelly 3 Circuit WiFi Smart Relay Pro 3, please follow the steps below:
1. Before starting the installation, make sure to read the user guide and any accompanying documents carefully.
2. Ensure that the power breakers are turned off and there is no voltage on their terminals. You can use a phase tester or multimeter to check for voltage.
3. Connect the 11, 12, and 13 input terminals to the corresponding circuit breakers as shown in the diagram.
4. Connect the three load circuits to the 01, 02, and 03 output terminals, as well as the negative cable.
5. Connect the N terminal to the negative cable and the L terminal to the device power supply circuit breaker. Any of the three phases can be used to power the device.
6. Connect three switches or buttons to the SW1, SW2, and SW3 terminals, as well as the device power supply circuit breaker. Any combination of AC and DC circuits can be switched as long as the currents through the device relays do not exceed 16 A and the voltages at their contacts are not higher than 240 VAC or 30 VDC.
7. It is recommended to use solid single-core cables with increased insulation heat resistance for the connections.
8. For inductive appliances that cause voltage spikes during switching on/off, such as electrical motors or fans, it is recommended to connect an RC snubber (0.1uF/1000/1/2 W/600 VAC) parallel to the appliance.
9. After completing the installation, you can power on the device and check the LED indicators for power, Wi-Fi, LAN, and output relays.
10. If you encounter any issues during the installation or operation of the Shelly 3 Circuit WiFi Smart Relay Pro 3, you can refer to the troubleshooting section in the user guide or visit the knowledge base page provided in the manual.
Please note that the installation of the device should be performed by a qualified electrician to ensure safety and compliance with regulations.
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