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Shelly Plus i4 DC wireless switch input / scene controller

Shelly Plus i4 DC allows you to manually activate or deactivate any created scene, run synchronized actions, or execute complex trigger scenarios. This is the special product version operating in DC environment. 

Shelly Plus i4 DC supports low voltage DC systems. Suitable for a wide range of applications, it can be wired to alarm systems, doorbells and garage doors, keeping you always notified of their state.

Shelly Plus i4 is an input reader device (it does not contain relays).

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Factory SKU ID:
Supported protocols:
Bluetooth, Wi-Fi
in stock (21 pcs)

Shelly PLUS i4 DC is the smallest WiFi wireless swicth input and scene activation device, a special version for DC environment! Suitable for a wide range of applications, it can be wired to alarm systems, doorbells and garage doors, keeping you always notified of their state.

Shelly PLUS i4 DC is Shelly's special DV version of Shelly Plus i4, which can be easily installed in DC environments, like mobile motor homes or any other DC setups. It is capable to detect switch from up to max. 4 DC switches and wirelessly control Shelly relays and sensors or other HTTP, MQTT or CoAP controlled devices via WiFi. It's a prefect choice to support wireless switching scenarios between a wired wall switch and a remote Shelly relay.

  • Wireless: No HUB required - Connect Shelly PLUS i4 DC directly to your Wi-Fi router.
  • Power supply: 5-24V DC
  • 4 pcs of AC inputs: Shelly PLUS i4 has four inputs. You can create scenes in the Shelly Cloud app and command them all.
  • Multi-click support: Up to 12 possible actions. Control the lights, shut the blinds, turn off outlets. Run any Shelly device and scenes you desire
  • Control remotely: Control the lighting or any other electric consumers, no matter where you are. 
  • Highly compatible: Compatible with Android, iOS, Amazon Alexa, Google Assistant, and home automation servers using MQTT, CoAP, and REST API.

You can use it to wirelessly connect a wired switch with an electronic device (light or device connected to wall socket) contolled by a Shelly relay, installed even in a different location. Shelly PLUS i4 DC receives the switch signal from the wall switch, and forwards it via WiFi to any other Shelly relay, also supporting controlling multiple relays.

Shelly PLUS i4 DC has no embedded relay but is small enough to be installed virtually anywhere and shows the status of 4 inputs. The device is in one of the switches and can command other connected Shelly relays, sensors, or HTTP, MQTT or CoAP controlled devices. Opportunities are endless through discrete commands on the home network or scenes in the cloud.

Shelly PLUS i4 DC can work with up to 4 switches and configure multiple events to all switches. All switching modes can have a configured Scene function, as well as, direct-device-to device commands are via URL based commands available.

Ultimate comfort for good night: Controlling other Shelly devices has never been easier. Shelly PLUS i4 DC allows for the remote control of other Shellys without your mobile phone. 

Just as in case of other Shelly smart devices, Shelly PLUS i4 DC connects directly to the WiFi router, it does not need a hub or gateway to work.


  • Wi-Fi operated - Connects to your Wi-Fi network. No HUB required!
  • Bluetooth - Add devices quick and easy via Bluetooth connection, using Shelly Cloud App
  • Extremely fast processor – ESP32
  • Multi-click - Up to 12 possible actions
  • Improved API interface
  • Java Scripts support for customized and complex scenarios

Other compatible platforms and integrations:

  • MQTT
  • HomeSeer
  • ioBroker
  • Home Assistant
  • openHAB
  • Domoticz
  • nymea
  • Hubitat

One application, countless possiblities: With the best cloud service in the world, user-friendly interface, scenes, bulk control, and much more, the Shelly Cloud application allows you to control your home from anywhere. Each Shelly can be integrated and works with all other Shelly devices in the Shelly App.

Product type:
Wi-Fi operated 4 digital inputs controller for enhanced actions control
Device power supply:
5V-24V DC
DIN rail compatible:
yes, together with Shelly DIN-adapter (not included)
Operating temperature range:
-20℃ – 40℃
Dimmer feature:
Rated power (output):
no relay / no output
2-way or 3-way switching:
Ethernet (RJ-45):
Wi-Fi standards:
802.11 b/g/n (2.4GHz)
RF transmitter / receiver:
yes, but Bluetooth is only used for device pairing with phone
Controllable from internet:
Manufacturer smartphone app:
yes, free app (Shelly Cloud) (iOS, Android)
Web admin interface:
Cloud mode:
yes, Shelly devices may connect to factory cloud (optional setting)
LAN mode:
REST API support:
MQTT support:
Schedulers, timers:
yes, (after synchronizing clock on the internet) limited number of timings operate in offline mode, any further timing can be run from the cloud in online mode
Notification functions:
send email, Shelly app notification
yes: on/off history in the app (the last 50 event for every Shelly account)
40 g/pcs
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Shelly Plus i4 DC wireless switch input / scene controller
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