Shelly EM Gen 3

Physical

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 terminals 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 color:

White

Charcoal gray

Connectors color:

Black

Environmental

Ambient working 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:

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

Output circuits ratings

Max. switching voltage:

240 V~

Max. switching current:

2 A/240 V~

Sensors, meters

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 and 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

Radio

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 and 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 and 30 m / 100 ft outdoors
(Depends on local conditions)

Microcontroller unit

CPU:

ESP-Shelly-C38F

Flash:

8 MB

Firmware capabilities

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)