Sonoff SPM 4Relay smart switch

Sonoff SPM 4Relay smart switch

Sonoff SPM-4Relay smart switch

sold separately), allows you to measure energy consumption. It can handle 4 independent channels and also allows you to use overload protection to protect devices from damage. The product is also very easy to install - it can be easily mounted on a guide rail.

Multiple uses

Sonoff SPM-4Relay switches will work well in many applications. For example, they will allow you to check how much electricity your tenants consume each month, as well as the energy consumption of a shopping mall or office. The product will also be useful in cryptocurrency mining or a server room. With the overload protection function, you will reduce the risk of damage to your devices.

Reliable connection

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

Energy consumption measurement

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

Overload protection

With Sonoff switches, you can also increase the security of your server room or cryptocurrency mining. The product offers an overload protection function. Simply 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 function.

4 channels per switch

Each SPM-4Relay switch offers 4 independent channels with a maximum load of 20 A. In addition, 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 an ideal solution, for example, for apartment buildings, where it will allow you to check the energy consumption of tenants in rented apartments. Connect the switches and enjoy the effects!

Technical specifications:

• ManufacturerSonoff
• ModelWhli-> current100-240 V ~50/60 Hz 20 A per channel, 80 A max.
• Output current100-240 V ~ 50/60 Hz 20 A per channel, 80 A max.
• MaterialPC V0

6 x 9> 2 x 5 x mm