Sonoff SPM-4Relay smart switch

Sonoff SPM-4Relay Smart Switch

Sonof SPM-4Relay smart switch, which in combination with the SPM-Main module (sold separately) allows measuring energy consumption. It can work with 4 independent channels and also allows you to use overload protection to protect your devices from damage. At the same time, the product is very easy to install - you can easily mount it on a guide rail.

Numerous applications

Sonoff's SPM-4Relay circuit breakers will prove useful in many applications. For example, they will allow you to check how much electricity your tenants use per month, as well as the energy consumption of a shopping center or office. The product will also prove useful in a cryptocurrency mine or server room. Thanks to the overload protection function, you will reduce the risk of damage to your devices.

A reliable connection

How does this all work? Sonoff gives you the ability to connect your devices. The SPM-Main switch communicates with the cloud using Ethernet or Wi-Fi connectivity. This allows it to control the SPM-4Relay switches via RS-485. As a result, stable data transmission over long distances is ensured. Don't be afraid of connection problems!

Measurement of electricity consumption

Do you want to be able to control the electricity consumption in every room in the office? Or maybe you want to check how much energy your tenants are using? Sonoff SPM-Main and SPM-4Relay switches will make this possible for you! The devices allow you to accurately measure energy consumption, and convenient access to the information is provided by the eWeLink application. You no longer need to leave the house to check your energy consumption - just reach for your phone!

Overload protection

With the help of Sonoff branded switches, you can also increase the security of your server room or cryptocurrency mine. The product offers an overload protection function. It is enough to activate it and the connected equipment will automatically turn off when the current parameters reach the values ​​specified in the application. You can also use the load delay feature.

4 channels per switch

Each SPM-4Relay switch offers 4 independent channels with a maximum load of 20A each. Moreover, one SPM-Main can control up to 32 SPM-4Relay switches. This means that one head unit will control up to 128 channels! This is an ideal solution for an apartment block, for example, where it will allow you to check the energy consumption of the tenants of the rental apartments. Connect the switches together and enjoy the results!

Specification