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The Shelly Pro 3EM Switch Add-on is a galvanically isolated switch designed to expand the capabilities of the Shelly Pro 3EM device. Easily control electrical devices with greater flexibility and control over your consumption.
Designed for much lower loads than dedicated switches such as the Shelly Pro 1, the add-on can switch 2A 240V AC or 2A 30V DC.
Only compatible with Shelly Pro 3EM (not included).
Note: You may require a neutral wire to use this product. Please research the device and your home wiring (safely, see below) before purchasing.
Enhanced with temperature, overpower, and overvoltage load protection, the Shelly Pro series is designed to be installed inside the breaker box (DIN). Allowing full smart automation with no additional cables or wiring, the Shelly Pro line is perfect for homes, offices, stores, businesses, and manufacturing facilities, as well as new buildings.
View our entire range of Shelly Pro and other professional home automation products.
All Shelly Pro products carry a five-year manufacturer warranty.
This warranty covers any issues with the hardware or firmware that exist at the time of purchase or that appear within the warranty period. The warranty includes all parts of the hardware, such as the body, mechanics, and display (if applicable). However, it does not cover consumable items like batteries or accessories, as their lifespan depends on how much they are used.
Size (HxWxD) | 94x19x69 ±0.5mm |
Weight | 20 ±1g |
Mounting | DIN rail (attached to a Shelly Pro 3EM) |
Screw terminal max torque | 0.4 Nm / 4.43 lbin |
Conductor cross section | 0.5 to 2.5 mm 20 to 14 AWG (solid, stranded and bootlace lugs) |
Conductor stripped length | 6 to 7mm |
Shell material | Plastic |
Colour | White |
Ambient temperature | -20 °C to 40 °C / -5 °F to 105 °F |
Humidity | 30 % to 70 % RH |
Max. altitude | 2000 m / 6562 ft |
Power supply voltage AC | N/A |
Power supply voltage DC | 3.3V and 12V (from Shelly Pro 3EM device) |
Power consumption | < 1 W |
Internal-temperature sensor | Yes |
Max switching voltage AC | 240 V |
Max switching voltage DC | 30 V |
Max switching current AC | 2A |
Max switching current DC | 2A |
A Shelly Pro 3EM is required to use this device (not included)