Sonoff SPM-4Relay smart switch that in combination with the SPM-Main module (sold separately) allows you to measure power consumption. It can support 4 independent channels, it also allows you to use overload protection, so you can protect your devices from damage. The product is also very easy to install - you can easily mount it on the guide rail.
Sonoff SPM-4Relay switches are suitable for many applications. They will allow, for example, to check how much electricity your tenants consume per month, as well as what is the energy consumption in a shopping center or office. The product will also prove useful in a cryptocurrency mine or in a server room. With overload protection, you can reduce the risk of damage to your devices.
How does it all work? Sonoff gives you the ability to connect devices. The SPM-Main main communicates with the cloud using Ethernet or Wi-Fi connectivity. This allows it to control SPM-4Relay switches via RS-485. As a result, stable data transmission over long distances is ensured. Don't be afraid of connection problems!
Do you want to be able to control energy consumption in every room in the office? Or maybe you want to check how much electricity your tenants consume? The Sonoff SPM-Main and SPM-4Relay switches make it possible! The devices allow for precise measurement of energy consumption, and convenient access to information is provided by the eWeLink application. You no longer have to leave the house to check power consumption - just reach for your phone!
With Sonoff switches, you can also increase security in a server room or cryptocurrency mine. The product offers an overload protection function. Just activate it and the connected equipment will be automatically switched off when the current parameters reach the values indicated in the application. You can also use the load delay function.
Each SPM-4Relay switch offers 4 independent channels with a maximum load of 20 A each. What's more, one SPM-Main can control up to 32 SPM-4Relay switches. This means that one main module can handle up to 128 channels! This is a perfect solution, for example, for a block of flats, where it will allow you to check the energy consumption of tenants of rented apartments. Connect the switches together and enjoy the effects!
| Producer | Sonoff (disambiguation) |
|---|---|
| Model | SPM-4Relay |
| Colour | White |
| Input current | 100-240 V ~50/60 Hz 20 A per channel, 80 A max. |
| Output | 100-240 V ~50/60 Hz 20 A per channel, 80 A max. |
| Material | PC V0 |
| Dimensions | 250 x 90 x 66.5 mm |
