The device is a modular system that includes the SPM-Main Unit control unit and SPM-4Relay relay modules. The control unit is responsible for interacting with the eWeLink application and coordinating up to 32 SPM-4Relay modules connected via the RS-485 interface. The system is designed for DIN rail mounting, which is convenient for use in distribution boards and electrical installations.

Each SPM-4Relay module has four independent channels with a maximum load of up to 20 A per channel, for a total of up to 80 A per module. All channels work autonomously and are configured separately, without mutual influence on each other.

The device allows you to keep track of electricity consumption for each channel, saving statistics to an SD card, which is installed in a special connector on the case. Data is recorded daily and stored for 180 days. Channels are numbered from “0” and above, and with one SPM-4Relay module, the archive displays channels from 0 to 3. Data collection is supported even in the absence of the Internet. You can view current consumption through the “Current” tab, and daily statistics and graphs through the “History” tab. Although real-time display is not available, the user can update the data manually by switching between tabs.

The device does not support transfer of access to other users and cannot be moved between different “Homes” in the eWeLink application - only within the same “Home”.

To increase safety, individual current thresholds can be set for each channel. If they are exceeded, the channel is automatically switched off, preventing overload and protecting connected devices. The device can be used in automation scenarios as a trigger (channel state) and an actuator (channel on/off).

When installed in rooms with three-phase power supply, the device allows you to distribute the load across phases, control each of them separately and maintain separate consumption statistics for each line.

Type: For 4 channels

Chip model: GD32F

Color: White

Weight: 584 g

Dimensions: 250 × 90 × 66.5 mm

Case material: PC V0 (flame retardant plastic)

Number of control channels: 4

Maximum load per channel: 20 A

Maximum load: 20 A/channel

Voltage: 100–240 V

WiFi: IEEE 802.11 b/g/n

Ethernet: Yes

Communication protocol: SPM-Main and SPM-4Relay

RS-485: Supported

Antenna: Built-in FPC board with antenna

Operating systems: Android and iOS

Security mode: WPA/WPA2

Encryption type: WEP/TKIP/AES

Memory card: MicroSD from 8 to 32 GB

Connection method: Zero and phase

Possibility of installation: DIN rail mounting (fasteners included)

Wire length for connecting blocks: up to 100 m

Operating temperature: from –10°C to +40°C

Operating Humidity: 5%–95%, non-condensing

Working height: less than 2000 m

Applicable place: Indoors

Brand Country: China