Sonoff Dry Contact Device with Matter / Mini-D
Sonoff Dry Contact Device with Matter / Mini-D
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Sonoff Dry Contact Device with Matter / Mini-D
The SONOFF MINI-D (MINI Dry) is a small Wi-Fi smart switch with a dry contact relay output, made to switch devices that are controlled by a dry contact signal, such as garage door openers, boilers and access control panels. It supports Matter, so it can be added to Amazon Alexa, Google Home and Apple Home, and it can also be used with the eWeLink app. It is powered either from 100-240V AC or from 12-48V DC.
Dry contact output (NO / COM / NC): The relay output is isolated, with Normally Open and Normally Closed terminals. Because a dry contact does not supply power to the connected device, it simply acts like a button press or a closed/open switch for the equipment you control, such as the trigger input of a garage door motor.
Matter and app control: Through Matter the MINI-D works with Amazon Alexa, Google Home and Apple Home, so you can switch it from your preferred smart home app or by voice. With the eWeLink app you get remote control and schedules over your 2.4 GHz Wi-Fi network, without a separate hub.
AC or DC power input: The device accepts 100-240V AC (50/60Hz) or 12-48V DC. This gives you more installation options, for example powering it from the mains in a wall box or from a low-voltage DC supply in a control panel.
Low-power DC loads: Besides dry contact signals, the output can drive small DC loads such as low-power DC motors or solenoid valves up to 8W at 12/24V DC, or resistive loads up to 24V DC 2A. For higher-power equipment, it can switch an external contactor.
External switch input: An existing wall switch can be connected to the S1/S2 terminals, so the device can still be operated locally. The external switch type is selectable with the button on the device.
Who it's for / Works with
Smart home users who want app or voice control of dry contact equipment: garage doors, boilers and heating/HVAC triggers, access control systems and irrigation. It works with Matter platforms such as Amazon Alexa, Google Home and Apple Home, and with the eWeLink app.
Good to know
Wi-Fi is 2.4 GHz only. Do not connect the AC and DC power inputs at the same time. The output is rated for low-voltage DC loads only (24V DC 2A resistive, or 12/24V DC 8W motor load); mains-powered equipment must be switched through an external contactor.
Technical Specifications
| Brand | SONOFF |
| Model | MINI-D |
| MCU | ESP32-D0WDR2 |
| Wireless | Wi-Fi IEEE 802.11 b/g/n, 2.4 GHz |
| Smart Home Protocol | Matter |
| Power Input | 100-240V~ 50/60Hz 0.1A max, or 12-48V⎓ 1A max |
| Output | Dry contact relay, NO / COM / NC |
| Max Load | 24V⎓ 2A (resistive load), or 12/24V⎓ 8W (motor load) |
| External Switch | Supported, selectable switch type |
| Casing Material | PC |
| Color | White |
| Dimensions | 43 x 41 x 21.5 mm |
| Net Weight | 34.5 g |
| Operating Temperature | -10°C to 40°C |
| Operating Humidity | 5% to 95% RH, non-condensing |
| Certifications | CE, FCC, RoHS |
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