Description
Shelly Dimmer Gen3 WiFi Light Controller
The Shelly Dimmer Gen3 is a compact, single-circuit light dimmer that allows precise control of lighting brightness from a smartphone, tablet, computer or home automation system. It works over a Wi-Fi local network without the need for an additional hub, and also supports remote control via the cloud. It can work with or without a neutral wire. The device also offers Wi-Fi signal amplification, interoperability with Bluetooth and BLE Gateway, and a range of automation options, including schedules, scripts and integration with systems like Home Assistant, Google Home, Alexa or SmartThings.
Working with and without a neutral wire
The Shelly Dimmer Gen3 allows installation in both systems with and without a neutral wire, which is key when retrofitting existing installations. For operation without a neutral wire, a Bypass module is required if the load is less than 20 watts - such a solution prevents the lamp from accidentally glowing after it is turned off.
Accurate measurements and protection
When the neutral wire is connected, the device allows the measurement of voltage (180-240 V), current (0-3 A) and energy consumption. These measurements are made with an accuracy of ±5%. In addition, the device is equipped with an internal temperature sensor and short-circuit and overload protection. Note: these functions work properly only when connected with a neutral conductor.
Convenient control and precise dimming
The product supports trailing edge mode, which provides smooth dimming of a wide range of light sources - from LEDs (up to 150 W) to halogen bulbs (up to 200 W) and electronic transformers. Automatic dimmer calibration guarantees a uniform dimming effect regardless of the type of light source. Built-in functions such as minimum and maximum brightness setting, transition time adjustment and night mode allow full control over lighting - both manually and through schedules.
Automation and advanced schedules
Shelly Dimmer Gen3 supports up to 20 schedules and 20 webhooks (with 5 URLs for each). It allows you to create advanced scenarios using scripts and local actions. You can schedule brightness changes, transition times and set automatic light on/off. With support for MQTT, KVS and virtual components, deep integration with advanced building automation systems is possible.
General
| Manufacturer |
Shelly |
| Model |
DimmerGen3 |
Physical parameters
| Dimensions |
38 x 42.5 x 16.5 mm / 1.50 x 1.67 × 0.65 inches |
| Weight |
24.3 g / 0.86 oz |
| Maximum terminal tightening torque |
0.4 Nm / 3.5 lbin |
| Cable cross section |
0.2 to 2.5 mm² / 24 to 14 AWG (solid, multi-strand, sleeves) |
| Length of stripped wire |
5 to 6 mm / 0.20 to 0.24 in. |
| Mounting |
Wall box |
| Housing material |
Plastic |
| Case color |
Green, print: black |
| Color of connectors |
Black |
Environmental conditions
| Operating temperature |
-20°C to 40°C / -5°F to 105°F |
| Operating humidity |
30% to 70% RH |
| Maximum altitude. |
2000 m / 6562 ft |
Electrical parameters
| Power supply |
220-240 V~, 50 Hz |
| Power consumption |
< 1,5 W |
| No neutral wire |
Yes |
| Minimum load without neutral wire and without Bypass |
20 W |
| Dimming type |
Trailing edge |
| External protection |
16 A, characteristic B or C, 6 kA breaking capacity, energy limitation class 3 |
| Short-circuit protection |
Yes |
Output circuit parameters
| Maximum output power |
200 W |
Sensors and measurements
| Voltage range (AC) |
180-240 V |
| Accuracy of voltage measurement |
±5% (when used with neutral conductor) |
| Current range (AC) |
0-3 A |
| Accuracy of current measurement |
±5 % (when used with neutral conductor) |
| Internal temperature sensor |
Yes |
Wi-Fi
| Protocol |
802.11 b/g/n |
| RF band |
2412-2472 MHz |
| RF power |
< 20 dBm |
| Range |
Up to 30 m indoors / 50 m outdoors (depending on conditions) |
Bluetooth
| Protocol |
4.2 |
| RF band |
2402-2480 MHz |
| Maximum RF power |
< 4 dBm |
| Range |
Up to 10 m indoors / 30 m outdoors (depending on conditions) |
Microprocessor unit
| CPU |
ESP32 C3 / STM32 G051 |
| Clock frequency |
ESP32 C3 - 40 MHz |
| Flash memory |
8 MB |
Firmware features
| Schedules |
20 |
| Webhooks (URL shares) |
20 with 5 URLs per webhook |
| Scripts |
Yes |
| MQTT |
Yes |
| Advanced scheduling |
Yes |
| KVS (Key-Value Store) |
Yes |
