Compact energy meter Shelly 3EM-63W Gen3

Brand: Shelly Group
Product Code: 3800235261958
Availability: 4-6 business days
Planuojama gavimo data po užsakymo: 2025-07-11

68.70€
Ex Tax: 56.78€

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Compact energy meter Shelly 3EM-63W Gen3

Device image(s)

Device identification

Name:
- Shelly 3EM-63W Gen3 (wired model)
- Shelly 3EM-63T Gen3 (flat terminal model)
Model: S3EM-003CXCEU63
Device SSID: Shelly3EM63G3-XXXXXXXXXX
BLE Model ID: 0x1026

Short description

Shelly 3EM-63 Gen3 (Device) is a compact energy meter designed to monitor a three-phase system or three independent single-phase circuits. It can operate autonomously on a local Wi-Fi network or can be controlled via cloud home automation services using MQTT, HTTP and WebSocket. All incoming connections support TLS.

The device reports real-time accumulated energy, as well as instantaneous voltage, current, active and apparent power for each phase. It stores data in non-volatile memory that can be restored for up to 7 days at 1-minute intervals.

The device has a real-time clock to maintain the correct time if the connection to the SNTP server is lost.

The user can access, configure and monitor the device remotely, and the device can also access and communicate with the automation system if they are on the same network infrastructure.

The device has a built-in web interface that allows you to monitor and control the device, as well as adjust its settings.

Main functions

4 quadrant measurement
Mounting on MCB: above or below the circuit breaker
Multifunctional connection types: three-phase or single-phase devices
Non-contact current measurements using current transformers
Phase sequence error detection² (optional)
Does not reach load limit³
Optical pulse energy consumption display
Real-time clock: Stored data maintains correct timestamps even if the internet connection is lost.⁴
Data logs: Up to 7 days of data is stored on the device and can be restored later
Accuracy class B (IEC 62053-21)
Photovoltaics ready

¹ Shelly 3EM-63T Gen3 only.

² The device has phase sequence error detection circuits. This detection works on phase voltages and only considers zero crossings. The correct sequence of these zero crossings is phase A, then phase B, then phase C. If instead the sequence of zero crossings is phase A, then phase C, then phase B, then a phase sequence error detection error is reported when the phase sequence option is enabled.

³ If the total load of the three channels drops below 30 VA per channel, the measured power level will be displayed, but the consumed energy will not be accumulated in the energy statistics, and a No load threshold message will be displayed on the device's web interface and mobile app.

⁴ Shelly devices rely on an internet connection to set the device clock. In the event of a network requirement for deployment or service outage, the built-in clock ensures correct timestamps for recordings.

Use cases

Energy consumption monitoring : Monitor your devices' energy consumption in real time. This information can be valuable for understanding energy consumption patterns and making informed decisions about reducing consumption.
Energy efficiency optimization : Identify electricity consumption patterns and optimize electricity consumption.
Device Health Check : Monitor the power consumption of individual devices to assess their health and performance over time. Sudden spikes or changes in power consumption may indicate device problems.
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Cost Management : Understanding your energy consumption is key to managing your electricity costs. With the Shelly 3EM-63 Gen3, you can estimate the operating costs of specific appliances, allowing you to make informed decisions and reduce your electricity bills.
Space-saving installation of an electricity meter : Save space by installing a smart electricity meter directly above or below a DIN rail-mounted switch.
Remote Monitoring : Shelly 3EM-63 Gen3 supports data publishing to Shelly Cloud or other cloud-based data collection and storage systems. This allows you to monitor your electricity consumption even when you are away from home.
Local Monitoring : The Shelly 3EM-63 Gen3, like other Shelly Wi-Fi devices, only offers local monitoring and automation. You can access saved energy consumption records directly from the device's web interface, making it convenient to track your energy consumption. You can also set local automation based on instantaneous energy consumption or energy consumption over a specific period of time.

Simplified internal scheme

Device electrical interfaces

3 direct inputs: LA , LB , LC
- Flat terminals for Shelly 3EM-63T Gen3
- Color wires Shelly 3EM-63W Gen3
1 neutral input wire: N

Connection

Wi-Fi
Bluetooth

Security function

Internal temperature sensor and notification

Supported load types

Resistive (incandescent bulbs, heating devices)
Capacitor (capacitor batteries, electronic equipment, motor start capacitors)
Inductive (LED drivers, transformers, fans, refrigerators, air conditioners)

User interface Inputs

One tactile dome button
- Press and hold for 5 seconds to turn on the AP device.
- Press and hold for 10 seconds to restore factory settings.

Outputs

LED indication
- Wi-Fi (varies):
  - Blue light if access point mode is active.
  - Red light if operating in STA mode and not connected to a Wi-Fi network.
  - Yellow light if you are in STA mode and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud is disabled.
- Green light if you are in STA mode, you are connected to a Wi-Fi network and Shelly Cloud.
The LED flashes red/blue if an OTA update is in progress.
.

Number: The red light flashes when the device is measuring energy according to the settings, and the frequency depends on the energy flowing in the circuit being measured.

Specifications

Quantity	Value
Physical
Size (HxWxD):	21x54x42 mm / 0.83x2.13x1.65 in (Shelly 3EM-63W Gen3, wireless) 31x54x42 mm / 1.22x2.13x1.65 in (Shelly 3EM-63T Gen3, wireless)
Cable length:	260 mm (including flat terminal)
Weight:	58g / 2.05oz (Shelly 3EM-63W Gen3, including cables) 52g / 1.83oz (Shelly 3EM-63T Gen3, including cables)
Conductor aperture:	Ø8 mm / Ø0.3 in
Installation:	About circuit breakers mounted on or under DIN rack
Housing material:	Plastic
Sink color:	White
Environmentally friendly
Ambient operating temperature:	20°C to 40°C / 5°F to 105°F
Humidity:	30-70% RH
Maximum height:	2000 m / 6562 ft
Power plant
Electricity supply:	220-240 V~ 50/60 Hz (between LA and N)
Electricity consumption:	< 2W
External protection:	63 A, tripping characteristic B or C, 6 kA breaking capacity, Energy limitation class 3
Switches, meters
Internal temperature sensor:	Yes
Voltmeters (rms value for each phase):	220-240V~ 50/60Hz
Voltmeter accuracy:	better than ±1%
Meters (rms over the integrated CT of each phase):	0 - 63 A (130 A saturation current)
Meter accuracy:	±1% (2-63A), ±2% (1-2A), ±5% (0-1A)
Power and energy meters:	Active and apparent power Active and apparent energy Energy factor Main active and main reactive energy
Does not reach the load limit:	30 VA
Measurement data storage:	At least 7 days of 1-minute resolution data
Data export:	For CSV saved PQ values JSON format export via RPC
Radio
Wi-Fi
Protocol:	802.11 b/g/n
RF band:	2401 - 2483 MHz
Max RF power:	< 20 dBm
Rank:	Beyond 30 m / 100 ft indoors and 50 m / 160 ft outdoors (depending on local conditions)
Bluetooth
Protocol:	4.2
RF band:	2400 - 2483.5 MHz
Max RF power:	< 4 dBm
Rank:	Over 10 m / 33 ft indoors and 30 m / 100 ft outdoors (depending on local conditions)
Microcontroller unit
CPU:	ESP-Shelly-C38F
Flash:	8MB
Firmware options
Schedules:	20
Webhooks (URL actions):	20 with 5 URLs in each hook
Scripting:	Yes
MQTT:	Yes

Tags: compact, energy, meter, shelly, 3em-63w, gen3, 3800235261958, group

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