Everything You Need to Know About Shelly 2.5 Wiring Diagram

Shelly 2.5 is a Wi-Fi switch that can control two electrical circuits up to 2.5 kW each. The device is designed to be easy to install and use, but sometimes it can be challenging to wire it correctly. In this article, we will provide a comprehensive guide on Shelly 2.5 wiring diagram, including tips, tables, and FAQs.

Understanding Shelly 2.5 Wiring Diagram

The first thing you need to know about Shelly 2.5 wiring is that it can be connected to two separate circuits, such as a lamp and a fan, or two lamps. Each circuit can have a maximum load of 2.5 kW. For safety reasons, the device requires a neutral wire and a ground wire. Here is a basic Shelly 2.5 wiring diagram:

Wire color Description
Brown or black Phase wire
Blue Neutral wire
Yellow-green Ground wire

Keep in mind that the wire colors may vary depending on your location and electrical code. Always consult a professional electrician if you have any doubts or questions about the wiring.

When you open the Shelly 2.5 device, you will see two connectors labeled L and N for each circuit. The L connector is connected to the phase wire, and the N connector is connected to the neutral wire. The ground wire should be connected to the green terminal screw.

Wiring Shelly 2.5 with a Single Switch

If you want to control one electrical circuit with a single switch, you can use the following wiring diagram:

Shelly 2.5 Wiring Diagram For A Single SwitchSource: bing.com

In this scenario, the phase wire (brown) is connected to the L connector on the Shelly 2.5, and the load wire (brown or black) from the electrical circuit is connected to the O connector. The neutral wire (blue) is connected to the N connector on the device. If you have a grounding wire (yellow-green), connect it to the green terminal screw.

When the Shelly 2.5 is connected correctly, you can configure it with your Wi-Fi network, and then control the electrical circuit via your smartphone, voice assistant, or a manual switch.

Wiring Shelly 2.5 with Two Switches

If you want to control two electrical circuits with two switches, you can use the following wiring diagram:

Shelly 2.5 Wiring Diagram For Two SwitchesSource: bing.com

In this scenario, you need to use a 3-wire cable instead of a 2-wire cable to connect the switches and the Shelly 2.5. The phase wire (brown) is connected to the L connector on the Shelly 2.5, and the load wires (brown or black) from each electrical circuit are connected to the O1 and O2 connectors. The neutral wire (blue) is connected to the N connector on the device. If you have a grounding wire (yellow-green), connect it to the green terminal screw.

When the Shelly 2.5 is wired with two switches, you can control each electrical circuit independently via your smartphone, voice assistant, or a manual switch.

FAQ

Q: Can I use Shelly 2.5 with a dimmer switch?

A: No, Shelly 2.5 is not designed to work with a dimmer switch. If you want to dim the lights, you need to use a compatible dimmer switch or a smart bulb.

Q: Can I use Shelly 2.5 to control a motor or a heater?

A: Yes, you can use Shelly 2.5 to control a motor or a heater, as long as the load does not exceed 2.5 kW per circuit. However, keep in mind that the device is not designed for high-power applications, and you may need a dedicated control system for industrial or commercial use.

Q: Can I connect Shelly 2.5 to a 3-phase electrical system?

A: No, Shelly 2.5 is designed for single-phase electrical systems only. Do not attempt to connect it to a 3-phase system, as it may cause damage or fire.

Q: Do I need a hub or a bridge to use Shelly 2.5?

A: No, Shelly 2.5 does not require a hub or a bridge to work. You can control it directly from your smartphone, voice assistant, or a manual switch.

Q: Can I use Shelly 2.5 with Amazon Alexa or Google Assistant?

A: Yes, Shelly 2.5 is compatible with Amazon Alexa and Google Assistant. You need to set up the device with your Wi-Fi network, and then enable the Shelly skill or action on your voice assistant app.

Conclusion

Shelly 2.5 is a versatile and reliable Wi-Fi switch that can make your home or office smarter and more convenient. By following the wiring diagram and the tips in this article, you can install and use the device safely and effectively. If you have any questions or feedback, please feel free to contact us.