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Shelly Pro 3EM Switch Add-on

Shelly Pro 3EM Switch Add-on

R599.00

Galvanically isolated switch designed to expand the capabilities of the Shelly Pro 3EM device. Easily control electrical devices with greater flexibility and control over your consumption.

 

 

Only compatible with Shelly Pro 3EM and Pro 3EM 3CT63

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Main applications

  • Residential

  • MDU (Multi Dwelling Units – apartments, condominiums, hotels, etc.)

  • Light commercial (small office buildings, small retail/restaurant/gas station, etc.)

  • Agricultural (farms, barns, silos, etc.)

  • Government/municipal

  • University/college

Simplified internal schematics

 

 

Shelly Pro 3EM Switch Add-on internal schematics

 

 

Device electrical interfaces

Inputs1 load circuit input IOutputs1 load circuit output O Add-on interfaceShelly proprietary serial interface⚠CAUTION! High voltage on the add-on interface when the Device is powered!

Safety features

  • Internal temperature sensing and reporting

Supported load types

  • Resistive (incandescent bulbs, small heating devices)

  • Capacitive (LED light drivers, capacitor banks, electronic equipment)

  • Inductive (contactors, transformers, fans, refrigerators)

User interface

Outputs

  • LED indication

    • Power: Red light if the power supply is connected.

    • Out: Red light if the output relay contact is closed.

Specifications

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Type

Value

Physical

Size (HxWxD):

94x19x69 ±0.5 mm / 3.70×0.75×2.71 ±0.02 in

Weight:

20 ±1 g / 0.70 ±0.05 oz

Mounting:

DIN rail, attached to a Shelly Pro 3EM

Screw terminals max torque:

0.4 Nm / 4.43 lbin

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:

N/A

Power supply voltage DC:

3.3 V and 12 V (from Shelly Pro 3EM device)

Power consumption:

< 1 W

Sensors, meters

Internal-temperature sensor:

Yes

Output circuits ratings

Max switching voltage AC:

240 V

Max switching voltage DC:

30 V

Max switching current AC:

2 A

Max switching current DC:

2 A

 

 

 

 

 

Basic wiring diagrams

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Shelly Pro 3EM Switch Ad-on

 

 

Resistive load

 

 

Pro-Switch-Add-on-wiring-RC-snubber.png

 

 

Inductive load and RC snubber

 

 

 

 

 

Legend

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Terminals

Wires

O

Load circuit output terminal

L

Live (110-240 V) wire

I

Load circuit input terminal

N

Neutral wire

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