Shelly Pro 3EM, Wi-Fi & Bluetooth

Add Wi-Fi, LAN, & Bluetooth Connectivity to A Switch or Outlet

Remotely monitor your appliances, home office, server room, and more through Wi-Fi & Bluetooth connectivity with the Shelly Pro 3EM-120A Wi-Fi & Bluetooth Module! This dry contact energy reader module mounts inside your breaker box to add remote power metering of up to 3 phase inputs on a single electrical load in your home or business. The device reports total consumed energy as well as instantaneous voltage, current, active, and apparent power per phase in real time. Data is stored on local memory that can be retrieved for a period of up to 60 days in 1-minute intervals. The Shelly Pro 3EM-120A supports resistive, capacitive, and inductive loads to allow for most electrical devices to be remotely monitored from your mobile device from the Shelly Smart Control app. It can be used as a standalone device in a local LAN and/or Wi-Fi network, or it can be operated through cloud services through MQTT, HTTP, and WebSocket to be included into a smart automation network.

• DIN-mountable Wi-Fi, LAN, & Bluetooth module measures and reports energy consumption in real-time of 2 channels in a single phase/load
• Measures up to 260V, 2A switching current, 120A power per phase within 1% accuracy in real time from a single channel; can be used with contactors for bigger loads
• Measure energy consumption of large appliances, computers, servers, or grouped devices
• Remotely monitor the Pro-3EM-120 and connected loads from the Shelly Smart Control app, no smart hub required
• 4 Quadrant measurement with optical pulse indication of energy usage
• Records up to 60 days of energy usage data on local memory in 1 minute intervals
• Built-in temperature sensor and overheating protection shuts down the Pro-3EM-120 when unsafe or rapid changes in temperature are detected nearby
• Enhanced with HTTP/HTTPs webhooks, Pro-3EM-120 devices can easily work with 3rd party electrical equipment and automation systems and follow 20 actions per week, no hub or cloud server required

Shelly Smart Control App – Everything at Home Connected

Enjoy enhanced home automation control and precise monitoring of your Shelly devices no matter where you are with the Shelly Smart Control app. The app connects to Shelly's cloud service to help you control your connected devices remotely and send notifications for all automated events in your home directly to your smart device. You can easily configure devices and manage their settings individually, or you can create personalized scenes by combining Shelly devices to trigger certain actions in your smart home network. The Shelly Smart Control App supports real-time power metering with power management (PM) devices, smart plugs, and smart bulbs in order to allow you to build complex automation solutions for improved energy efficiency and lower electricity bills. Shelly devices are compatible with other most widely accepted both local and cloud based home automation platforms. A Shelly Smart Control App user account is required to access, include, and control Shelly devices through the Shelly Smart Control application and include your Shelly devices to 3rd party home automation or voice assistant platforms like SmartThings, Amazon Alexa or Google Home.

• Easy Inclusion and Control: Include and name new devices in the Shelly Smart Control app, assign them to the rooms they are located in, and group them into scheduled or automated scenes.
• Custom Dashboard: Create multiple dashboards for quick access to your preferred devices, rooms, and scenes. Issue commands using your dashboards or your preferred voice assistant towards individual devices or a group of devices.
• Smart Scenes: Combine multiple devices into one smart scene with pre-set triggered actions. Lower the lights when the TV is turned on for a "Movie night". Cut off the power and send a notification when a space heater has been left on past 9am while you are "Away at Work".
• Custom Schedules and Timers: Teach your home how to make you more comfortable by setting custom schedules based on your agenda. You can set a Shelly controlled switch to turn on the outdoor lights at 7:00 PM on workdays, or turn on your heater an hour before you return from work.
• Energy Monitoring: An energy consumption panel gives you a detailed view of your live and recorded energy usage from devices controlled by Shelly products. The information is stored in a free cloud and fully accessible to you for further analysis of your energy consumption habits.
• Works with Alexa: Shelly Smart Control is natively compatible with Amazon Alexa.

Installation Details

The Shelly Pro EM-120 fits on a DIN rail inside a breaker box, and professional installation is required. A neutral wire is required for installation. Once connected to your Wi-Fi network or within range of a Bluetooth controller, the Pro EM-120 can be included into your local compatible smart home network after it is installed.

Contents

• Pro 3EM-120 Module
• DSK Label
• User Manual

NOTE: A neutral wire is required for installation.

Shelly Provides A 100% Wireless Smart Home

Shelly creates innovative and affordable smart home devices for residential and business applications. Shelly, formerly Qubino, now focuses on providing Wi-Fi and Z-Wave compatible smart home solutions. Shelly devices are among the smallest automation control devices in the world, allowing them to find their place in nearly any sized smart home installation. Shelly utilizes the latest technologies to deliver superior automation, safety, and energy efficiency to their customers without breaking down their walls or bank accounts.

• Manufacturer Part #: SPEM-003CEBEU
• Model Part: Pro 3EM
• EAN: 3800235268100
• Warranty: 5-Year

Radio

• RF Band: 2400 – 2495 MHz
• Max. RF Power: <20 dBm
• Wi-Fi Protocol: 802.11 b/g/n
• Wi-Fi Range: Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions)
• Bluetooth Protocol: 4.2
• Bluetooth Range: Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions)

Physical

• Size (HxWxD): 94 x 19 x 69 ±0.5 mm / 3.70 x 0.75 x 2.71 ±0.02 in
• Weight: 62 g / 2.19 oz.
• Mounting: DIN rail
• Screw Terminals Max Torque: 0.4 Nm / 4.43 lb in
• Conductor Cross Section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded and bootlace lugs)
• Conductor Stripped Length: 6 to 7 mm / 0.24 to 0.28 in
• Shell Material: Plastic
• Color: White

Environmental

• Ambient Temperature: -20°C to 40°C / -5°F to 105°F
• Humidity: 30% to 70% RH
• Max. Altitude: 2000 m / 6562 ft

Electrical

• Power Supply Voltage AC: 110 – 260 V, 50/60 Hz
• Power Supply Voltage DC: N/A
• Power Consumption: <3 W
• Neutral Wire Needed: Yes

Output Circuits Ratings

• Max Switching Voltage AC: 260 V
• Max Switching Current AC: 2 A
• Max Switching Voltage DC: N/A
• Max Switching Current DC: N/A

Sensors, Meters

• Internal-Temperature Sensor: Yes
• Voltmeter (RMS): 100 – 260 V
• Voltmeters Accuracy: ±1%
• Ammeters (RMS via CT): 0 – 120 A
• Ammeters Accuracy: ±1% (5 – 120 A)
• Power and Energy Meters: Active and apparent power
• Active and Apparent Energy: Power factor
• Measurement Data Storage: At least 60 days of 1 min data resolution
• Data Export:
• CSV for PQ recorded values
• JSON format export through RPC

MCU

• CPU: ESP32-D0WDQ6
• Flash: 16 MB

Firmware Capabilities

• Webhooks (URL Actions): 20 with 5 URLs per hook
• Scripting: Yes
• MQTT: Yes
• CoAP: No

»Shelly Pro 3EM 3-Phase Energy Meter User Manual (Multilingual) (.pdf)