Shelly EM + 120A Clamp
£60.49
The Shelly EM with 120A clamp is a Wi-Fi energy meter for monitoring individual appliances, circuits or whole-home and solar consumption across two channels, each rated up to 120A. It includes contactor control for switching loads and stores 365 days of energy history on-device, with overpower shutdown and consumption limit features built in.
- Two metering channels, up to 120A each
- 365 days of built-in energy history storage
- Contactor control output (max 2A at 230V)
- Includes overpower shutdown and consumption limit protection
Buy the Shelly EM + 120A Clamp online in the UK from ShellyUK — genuine Shelly stock with fast UK delivery.
Individually monitor the consumption of any of your home appliances, electric circuits and office equipment (lights, sockets, security systems, heating and cooling, etc.). Monitor consumption of your whole home or generated electricity from solar panels with a one of its kind WiFi-operated energy meter with contactor control functionality.
Two metering channels, up to 120A each
365 days of built-in energy history storage

Contactor control output (max 2A at 230V)
Includes overpower shutdown and consumption limit protection
Where you'd use it
Solar Export Tracking
Clamp one channel around the solar inverter output and the other around the main incomer to see generation versus household draw at a glance.
High-Draw Appliance Monitoring
Track a single high-current circuit, such as an immersion heater or heat pump, and use the built-in contactor control to cut it off automatically if consumption limits are exceeded.
365-Day Usage Review
Use the year's worth of built-in energy history to compare consumption month to month, useful for spotting a creeping fault or seasonal heating pattern.
Specification
Connectivity
- Wireless/WiFi Protocol
- 802.11 b/g/n (2.4 GHz)
- Operational range (depending on local construction) • up to
- 50 m outdoors • up to 30 m indoors
- Radio Signal Power
- 1mW
Physical & Build
- (H x W x L)
- 39 x 36 x 17 mm
Power & Electrical
- Power supply
- 110-230V ±10, 50/60Hz AC
- Power metering Two channels, up to
- 120A each
- Contactor control Maximum load: 2A at
- 230V 50/60Hz
- Electrical consumption < 1W
Other
- Consumption history
- 365 days built-in energy history (Wh)
- Complies with EU standards • RE Directive
- 2014/53/EU • LVD 2014/35/EU • EMC 2004/108/WE • RoHS2 2011/65/UE
- Working temperature
- -40°C to +40°C
- Additional features • Overpower shutdown • Consumption limit
- Frequency
- 2400 – 2484 MHz








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