Shelly I4 Gen3 - Specifications

![]() |
|
| PHYSICAL | |
|---|---|
| Size (HxWxD): | 37x42x16 / 1.46x1.65x0.63 |
| Weight: | 19 g / 0.67 oz |
| Maximum screw terminal torque: | 0.4 Nm / 3.5 lbin |
| Conductor cross section: | 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded and crimp terminals) |
| Stripped conductor length: | 6 to 7 mm / 0.24 to 0.28 in |
| Mounting: | Wall box |
| Housing material: | Plastic |
| Housing color: | Orange |
| Terminal color: | Black |
| ENVIRONMENTAL | |
| Ambient working temperature: | -20°C to 40°C / -5°F to 105°F |
| Humidity: | 30% to 70% RH |
| Maximum altitude: | 2000 m / 6562 ft |
| ELECTRIC | |
| Power supply: | 110 - 240 V⎓, 50/60 Hz |
| Energy consumption: | < 1 W |
| SENSORS, METERS | |
| Internal temperature sensor: | Yeah |
| RADIO | |
| Wi-Fi | |
| Protocol: | 802.11 b/g/n |
| RF Band: | 2401 - 2483 MHz |
| Maximum RF power: | < 20 dBm |
| Range: | Up to 30 m indoors and 50 m outdoors (Depends on local conditions) |
| Bluetooth | |
| Protocol: | 4.2 with BLE |
| RF Band: | 2400 - 2483.5 MHz |
| Maximum RF power: | < 4 dBm |
| Range: | Up to 10 m indoors and 30 m outdoors (Depends on local conditions) |
| MICROCONTROLLER UNIT | |
| CPU: | ESP-Shelly-C38F |
| Flash: | 8MB |
| FIRMWARE CAPABILITIES | |
| Webhooks (URL actions): | 20 with 5 URLs per webhook |
| Scripting: | Yeah |
| MQTT: | Yeah |
