Device profile · Specifications & compatibility

Shelly 3EM-63W Gen3

Name: Shelly 3EM-63W Gen3
Brand: Shelly

Shelly · Energy Monitors · Model 3EM-63W Gen3

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Shelly 3EM-63W Gen3 lists Three Phase; Home Assistant; 2.4 GHz Wi-Fi.
Verify the installation, sensor arrangement and regional electrical requirements with the manufacturer.

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Recorded year: 2025
Recorded warranty: 3 years
Dimensions: 21 x 54 x 42 mm
Weight: 58g

The details that shape your choice

Shelly 3EM-63W Gen3 Quick Features

Start with these specifications, then check the full details and conditions below.

All specifications →

Three Phase: Yes; View details →
Split Phase: No; View details & conditions →
2.4 GHz Wi-Fi: Yes; View details →
Bluetooth: Yes; View details & conditions →
Data Export: Yes; View details & conditions →
Data History: 7 days; View details & conditions →

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From specification to decision

Shelly 3EM-63W Gen3: Capabilities And Limitations

Based on listed specifications, not hands-on testing. Manufacturer sources are linked where checked.

What it offers

A Home Assistant integration is listed, providing an integration path to verify for the exact model. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.
View Home Assistant details →

What to consider

Matter is listed as unsupported; check another documented integration if Matter is essential to your setup.
View Matter details →
Apple Home support is listed as unavailable; do not assume the device appears directly in Apple Home.
View Apple Home details →

Still needs verification

Confirm these details if they matter to your setup.

real time updates: Not recorded →

About our sources and comparison method →

Questions About Shelly 3EM-63W Gen3

Does Shelly 3EM-63W Gen3 support three-phase support?

The meter also supports a three-phase installation. The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Verify the installation, sensor arrangement and regional electrical requirements with the manufacturer.

Source: Shelly 3EM-63W Gen3 manufacturer product page · Checked 2026-10-04

View Three Phase specifications →

Does Shelly 3EM-63W Gen3 support split-phase support?

No, according to the listed specifications. Check the supported electrical system and required installation procedure. 220-240 V only, so a 120/240 V split-phase service is out of scope

View Split Phase specifications →

Does Shelly 3EM-63W Gen3 support Matter?

No, according to the listed specifications. Verify the exact device type, firmware and features exposed in your chosen platform. Matter support is not proof of feature parity.

View Matter specifications →

Does Shelly 3EM-63W Gen3 work with Home Assistant?

Yes, according to the listed specifications. Check the exact integration and firmware. A catalog integration label does not establish local control, official support or available entities.

View Home Assistant specifications →

Does Shelly 3EM-63W Gen3 work with Apple Home?

No, according to the listed specifications. Check the model, firmware, exposed controls and any additional hardware requirements.

View Apple Home specifications →

Explore the full picture

Shelly 3EM-63W Gen3 Specifications

Recorded catalog values. Expand notes for qualifications; unknown values are not treated as missing features.

5 of 39 fields matched to manufacturer documentation. Source checks apply only to the named model and stated scope. Other fields remain catalog data. How we verify specifications →

Metering9 fields

Metering specifications
Monitored Circuits	3 Manufacturer source Three measurement channels support separate single-phase circuits. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditions Three phases, or three independent single-phase circuits
Included Ct Sensors	Not applicable / unspecified Details & conditions Current transformers are built into the body, conductor aperture 8 mm
Main Ct Rating	63 A Details & conditions 0 to 63 A per phase, saturation at 130 A
Branch Ct Rating	Not applicable / unspecified
Accuracy	±1% Details & conditions Accuracy Class B for active energy, ±1% from 2 A to 63 A
Split Phase	No Details & conditions 220-240 V only, so a 120/240 V split-phase service is out of scope
Three Phase	Yes Manufacturer source The meter also supports a three-phase installation. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.
Bidirectional Metering	Yes Details & conditions 4 quadrant measurement, direction can be reversed per phase in software
Power Factor	Yes Details & conditions Active and apparent power and energy, power factor, fundamental reactive energy

Connectivity8 fields

Connectivity specifications
2.4 GHz Wi-Fi	Yes
5 GHz Wi-Fi	No
Ethernet	No
Bluetooth	Yes Details & conditions Bluetooth 4.2
Z Wave	No
Zigbee	No
Thread	No
Other	No

Data Monitoring6 fields

Data Monitoring specifications
Real Time Updates	Not recorded
Data History	7 days Manufacturer source Local records cover up to seven days at one-minute intervals. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant. Details & conditions At least 7 days of 1-minute data in non-volatile memory
Energy Cost Tracking	Yes
Time Of Use Rates	Yes Details & conditions Cost periods and tariff distribution in the Shelly Smart Control app
Data Export	Yes Details & conditions CSV for power quality values and JSON through RPC
Usage Alerts	Yes

Features3 fields

Features specifications
Relay Output	No
Load Management	Yes Details & conditions Scripts and webhooks can drive other devices from the readings
Automations	Yes

Installation4 fields

Installation specifications
Breaker Panel Install	Yes
Din Rail Mount	No Details & conditions Sits above or below the DIN-rail circuit breakers instead of clipping onto the rail
Smart Meter Port	No
Power Supply	Mains (220-240 V)

Integrations6 fields

Integrations specifications
Google Home	Yes
Alexa	Yes
Apple Home	No
SmartThings	Yes Details & conditions Via the official Shelly Cloud integration
Home Assistant	Yes
Matter	No

Local Control3 fields

Local Control specifications
Local Api	Yes Details & conditions RPC over HTTP and WebSocket with TLS, plus webhooks and scripting
Mqtt	Yes Manufacturer source MQTT communication is documented. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.
Local Web Interface	Yes Manufacturer source An embedded web interface provides local access. Shelly 3EM-63W Gen3 manufacturer product page → Source section Technical details: device description and main features Model Shelly 3EM-63W Gen3 Region Manufacturer product page; no universal regional compatibility implied Firmware Not specified by this source Checked 2026-10-04 The page covers the 63W wire and 63T terminal variants. Above-breaker mounting is specific to the 63W; installation details are not interchangeable. Document check only; not a hands-on test or verification of every regional or firmware variant.

Category ComparisonSee how these fields vary across energy monitors Reading SpecificationsCheck units, conditions and specification limits

How this device compares

Shelly 3EM-63W Gen3 vs Other Similar Models

Statistical context from 25 energy monitors in this catalog. These figures describe our recorded data, not independent measurements.

Recorded feature coverage

Bluetooth: 10 of 20 known answers are Yes

Connectivity: 50% among explicit Yes/No answers; 5 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Recorded feature coverage

Mqtt: 12 of 23 known answers are Yes

Local Control: 52% among explicit Yes/No answers; 2 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Recorded feature coverage

Local Web Interface: 13 of 24 known answers are Yes

Local Control: 54% among explicit Yes/No answers; 1 of 25 devices have no resolved answer. Check the specifications for this model’s conditions.

Brand representation in this directory

8 of 25 models are from Shelly

Counts energy monitors listed here, not sales or market share. Catalog inclusion does not imply a recommendation.

How These Figures Are CalculatedLearn about our catalog statistics methodology

What Should You Verify Before Buying Shelly 3EM-63W Gen3?

These checks describe energy monitors requirements. Confirm each one against the exact model’s current manufacturer documentation and your installation.

Choose device-level, circuit-level or whole-home measurement.
Verify phase, sensor and panel compatibility with the manufacturer.
Confirm installation requirements before work near electrical equipment.
Check sample intervals, export and how tariff calculations are handled.

Verify compatibility beyond a protocol label →Check accounts, accessories and installation requirements →Check update support and data deletion before choosing →

Side-by-side specification comparison

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Catalog specifications have not all been independently checked against manufacturer sources. Read our data and evidence methodology.