Smart Switches
SONOFF SPM-Main Controller for Smart Stackable Power Meter System
SKU: 6920075778021
€42.99
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Description
SONOFF SPM-Main is the central controller for the SONOFF Smart Stackable Power Meter system. It must be connected to at least one separately sold SPM-4Relay module; the main unit does not itself provide four switching or metering channels.
System functions
- Connects to the eWeLink service through Ethernet or 2.4 GHz Wi-Fi.
- Communicates with SPM-4Relay modules through RS-485.
- Supports up to 32 SPM-4Relay modules, providing up to 128 separately managed channels.
- Paired relay modules support remote switching, real-time current, voltage and power monitoring, energy statistics and overload protection.
- Supports an 8-32 GB microSD card for local data storage and export; the card is sold separately.
- LAN mode and DIN-rail installation are supported.
Main-unit specifications
- Supply: 100-240 V AC, 50/60 Hz; current: up to 50 mA.
- Wireless connection: IEEE 802.11 b/g/n, 2.4 GHz.
- Module connection: RS-485; network connection: Ethernet or Wi-Fi.
- Dimensions: 142.5x90x66.5 mm; weight: 214 g.
- Housing: flame-retardant PC V0; colour: white.
- Operating temperature: -10 to +40 °C; humidity: 5-95% RH, non-condensing.
- Warranty: 24 months.
The package contains the SPM-Main unit only. SPM-4Relay modules and a microSD card are separate. Installation and maintenance must be performed by a qualified electrician with the supply disconnected.