Sonoff SPM 4Relay

Sonoff SPM 4Relay

The SPM-4RELAY is the relay unit that needs the SPM-MAIN main unit to work. The SPM devices are great stackable power measurement devices for especially usage in bigger building like malls or at offices.

• Power measurement (current, power, voltage) and switch to easily build in a fuse box
• DIN-rail compatible
• Do not use this device as safety fuse!
• Stackable up to 32 SPM-4RELAY units of each 4 relays (so 128 channels in total)
• Requires at least the SPM-MAIN main unit
• Each channel of the SPM-4Relay unit supports a maximum of 20A
• RS-485 communication between SPM-MAIN main unit and SPM-4RELAY units
• Overload protection

Supported features:

• Schedule
• Timer
• Loop timer
• Find me (pressing Find Me button on eWeLink app will blink indicator on corresponding SPM-4RELAY unit)
• Power consumption history records
• Specifications:
• Dimensions: 250 × 90 × 67 mm
• Brand: Sonoff
• Power supply: 100 – 240V, 50 Hz, 60 Hz, AC
• Maximum current (ampere): Per gang: 20, Total: 80
• Gangs: 4
• Extras: OPS, power measurement, power metering, power monitoring