Shelly EM Gen3

The Shelly EM Gen3 is a small form factor smart energy meter able to utilise up to 2 current transformers for contactless metering (one 50A clamp is included), which allows energy metering the consumption of electric appliances and reporting to a mobile phone, tablet, PC, or home automation system. It can work standalone in a local Wi-Fi network or it can also be operated through cloud home automation services. The device has internal storage for data allowing for later retrieval. The device has a single dry contact switch for controlling external loads. The Shelly EM Gen3 can be accessed, controlled, and monitored remotely from any place where the user has internet connectivity, as long as the device is connected to a Wi-Fi access point and the internet. It can be retrofitted into some electrical wall boxes, next to electrical appliances, power sockets, or in other places with limited installation space. It also has an embedded web interface which can be used to monitor, configure, and control the device. You can monitor power monitoring data via the Shelly smart home ecosystem, including the Shelly Smart Control app - or link it with a popular home automation software such as Home Assistant via a Raspberry Pi! Note: You may require a neutral wire to use this product. Please research the device and your home wiring (safely, see below) before purchasing.

⚠️Caution - Read Before Buying⚠️

* Before beginning the installation, please read this guide and any other documents accompanying the device carefully and completely

* Danger of electrocution. The mounting/installation of the device should be performed by a qualified person (electrician)

* Failure to follow the installation procedures could lead to malfunction, danger to your health and life, violation of the law or refusal of legal and/or commercial guarantee (if any)

* Allterco Robotics (makers of Shelly products) and Mann Enterprises LTD are not responsible for any loss or damage in case of incorrect installation or improper operation of this device due to failure to follow the user and safety instructions in the printed guide accompanying this product (also available in the resources section below)

* Do not connect the device to appliances exceeding the given max load.

* Use the device only with a power grid and appliances which comply with all applicable regulations. Short circuit in the power grid or any appliance connected to the device may damage the device.

* Before starting, wire check that the breakers are turned off and there is no voltage on their terminals. This can be done with a phase meter or multimeter. When you are sure that there is no voltage, you can start wiring the cables.

Features

* Wi-Fi and Bluetooth connectivity

* Single phase, two channel measurement

* Up to 2 current transformers connection (contactless metering)

* Dry contact switch for contactor control

* Shelly chip with 8 MB memory

* Local data logs stored on device for up to 10 days in 1-minute intervals

* Smart schedules

* Real-time clock

* Supports scripting, webhooks, MQTT, WebSocket, HTTP, RPC protocols

* Wide integration into smart automation systems

Specifications

Size (HxWxD) 37x42x16 mm / 1.46x1.65x0.63 inch

Weight EM Gen3 - 23 g / 0.81 oz

CT 50A - 50 g / 1.76 oz

Screw terminal max torque 0.4 Nm / 3.5 lbin

Conductor cross-section 0.2 to 2.5 mm² / 24 to 14 AWG (solid, stranded, and bootlace ferrules)

Conductor stripped length 6 to 7 mm / 0.24 to 0.28 in

Mounting Wall console, Electrical cabinet

Shell material Plastic

Shell colour White / Charcoal gray

Connectors colour Black

Ambient working temperature -20 °C to 40 °C / -5 °F to 105 °F

Humidity 30 % to 70 % RH

Max. altitude 2000 m / 6562 ft

Power supply 110 - 240 V~ 50/60 Hz

Power consumption < 1.2 W

Neutral not needed Yes or No

External protection 2 A, tripping characteristic B or C,

6 kA interrupting rating,

Energy limiting class 3

Max. switching voltage 240 V~

Max. switching current 2 A/240 V~

Voltmeter (AC) 110-240 V~ 50/60 Hz

Voltmeter accuracy ±2%

Ammeter (AC) 0 - 80A

Ammeter accuracy ±2 % (2 - 50 A), ±2 % (1 - 2 A), ±5 % (0 - 1 A)

Compatible current transformers CT 50A (included in the package)

CT 80A

Power and energy meters Active and apparent power

Active and apparent energy

Power factor

Fundamental active Fundamental reactive energy

Channel-to-channel calibration minimum load

500 W

No load threshold 30 VA per channel

Measurement data storage At least 10 days of 1 min data resolution

Data export CSV for PQ recorded values

JSON format export through RPC

Internal-temperature sensor Yes

Wi-Fi

Protocol 802.11 b/g/n

RF band 2412 - 2472 МHz

Max. RF power < 20 dBm

Range Up to 30 m / 100 ft indoors Up to 50 m / 160 ft outdoors (Depends on local conditions)

Bluetooth

Protocol 4.2

RF band 2402 - 2480 MHz

Max. RF power < 4 dBm

Range Up to 10 m / 33 ft indoors Up to 30 m / 100 ft outdoors (Depends on local conditions)

CPU ESP-Shelly-C38F

Flash 8 MB

Schedules Yes

Webhooks (URL actions) 20 with 5 URLs per hook

Scripting Yes

MQTT Yes

Encryption Yes (Transport level)

Authentication Yes (Application and transport level)

Resources

* Shelly Product Documentation

* Printed User Guide (as found within the package)

* Components and APIs

* Device Identification

* Device name: Shelly EM Gen3

* Device model: S3EM-002CXCEU

* Device SSID: ShellyEMG3-XXXXXXXXXXXX

* BLE model ID: 0x1027

* EAN: 3800235261873

Handy Shelly Resources

* Shelly Cloud

* Shelly App

* Apple App Store

* Google Play

* Huawei AppGallery

* Home Assistant Shelly Integration

* Shelly Community Forum

* Shelly Facebook Support Group

* Shelly Knowledgebase

* Shelly Device Finder (easy-to-use software to find Shelly devices in the local network)

* Shelly Developer API

Package Contents

* 1x Shelly EM Gen3

* 1x 50A Clamp

* 1x User Guide