Sonoff SPM-4Relay 20A Wifi Smart Switch

Note : The Main Unit and 4-Relay of the Stackable Power Meter need to be used together. The Main Unit is connected to at least one 4-Relay in order to function

Max. 20A/Gang.Each channel can support maximum current of 20A, no fear of high power load
Communicated by RS-485.The SPM-Main communicates with the SPM-4Relays through RS-485, which allows for multi-terminal and stable long-distance data transmission
Overload Protection.Once the overload protection is enabled, it can protect your devices from burning out.
 

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• Model : SPM-4Realy
• Input : 100-240V AC 50/60Hz 20A /Gang 80A/Total Max
• Output : 100-240V AC 50/60Hz 20A /Gang 80A/Total Max
• Color : White
• Material : PC V0
• Dimension : 250X90X66.5mm
   

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