Description
Intelligent energy monitoring for a more efficient home
Take complete control of your electricity consumption with the latest generation of smart energy meters. The Shelly EM Gen4 is a compact and powerful device that allows you to monitor your power usage in real-time directly via your Wi-Fi network. By identifying the biggest energy consumers in your home, you can easily optimize your electricity usage and lower your bills. The device connects seamlessly to your existing network without the need for extra hubs, and the intuitive app provides clear graphs and a detailed history of your consumption.
Smart features and scheduling
In addition to measuring current, the device gives you the ability to actively control your consumption. The built-in relay output allows you to control external contactors, meaning you can switch heavy loads on and off based on schedules, current power consumption, or sunrise and sunset times. This makes it easy to automate your home so that energy-intensive appliances only run when electricity is at its cheapest or when you have surplus energy from your solar panels.
Application Areas
- Heating system monitoring: Keep track of exactly how much energy your heat pump or electric boiler consumes during the coldest months of the year.
- Water heater control: Use the relay output to control a contactor that turns on the water heater during the cheaper nighttime hours.
- Solar production tracking: Monitor how much energy your solar panels are generating and adjust your household consumption accordingly.
- EV charging optimization: Measure the consumption of your electric vehicle charger and schedule charging to avoid overloading your home's main fuses.
Technical Data
| Physical | |
| Size (HxWxD) | 37x42x16 mm / 1.46x1.65x0.63 inch |
| Weight | 26 g / 0.92 oz |
| Screw terminals max torque | 0.4 Nm / 3.5 lbin |
| Conductor cross section | 0.5 to 4 mm² / 20 to 11 AWG (solid, stranded, and bootlace ferrules) |
| Conductor stripped length | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting | Wall console |
| Shell material | Plastic |
| Shell color | White |
| Connectors color | Grey (Mouse Grey RAL7005, R(106) G(110) B(106), HEX #6A6E6A, LRV 15.19.) |
| Environmental | |
| Ambient working temperature | -20 °C to 40 °C / -5 °F to 105 °F |
| Humidity | 30 % to 70 % RH |
| Max. altitude | 2000 m / 6562 ft |
| Electrical | |
| Power supply voltage AC | 110 - 240 V, 50/60 Hz |
| Power supply voltage DC | N/A |
| Power consumption | < 1 W |
| External protection | 2 A, tripping characteristic B or C, 6 kA interrupting rating, Energy limiting class 3 |
| Output circuits ratings | |
| Max switching voltage AC | 240 V |
| Max switching voltage DC | N/A |
| Max. switching current | 2 A |
| Sensors, meters | |
| Voltmeter (AC) | 110 - 240 V |
| Voltmeter accuracy | ±2 % |
| Ammeter (AC) | 0 - 120 A |
| Ammeter accuracy | ±2 % (2 - 50 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A) |
| Compatible current transformers | CT 50A (included in the package), CT 80A, CT 120A |
| Power and energy meters | Active and apparent power, Active and apparent energy |
| Power factor | |
| No load threshold | 30 VA per phase |
| Measurement data storage | At least 30 days of 1 min data resolution |
| Data export | CSV for PQ recorded values, JSON format export through RPC |
| Internal-temperature sensor | Yes |
| Radio | |
| Wi-Fi Protocol | 802.11 b/g/n/ax |
| RF band | 2412 - 2484 МHz |
| Max. RF power | < 20 dBm |
| Range | Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) |
| Bluetooth Protocol | 5 (LE) |
| RF band | 2402 - 2480 MHz |
| Max. RF power | < 20 dBm |
| Range | Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) |
| Zigbee Protocol | 802.15.4 |
| Zigbee repeater | Yes |
| RF bands | 2405 to 2480 MHz |
| Max. RF power | < 20 dBm |
| Range | Up to 100 m / 328 ft indoors and 300 meters / 984 ft outdoors (Depends on local conditions) |
| Microcontroller unit | |
| CPU | ESP32C6 |
| Flash | 16MB |
| Firmware capabilities | |
| Schedules | 20 |
| Webhooks (URL actions) | 20 with 5 URLs per hook |
| Scripting | Yes |
| MQTT | Yes |
| EAN | 3800238070779 |