Shelly Pro 3EM Switch Add-On

The Shelly Pro 3EM Switch Add-On is an innovative, galvanically isolated switch addition device, especially developed to extend the features of your Shelly Pro 3EM. With this add-on, you can easily control contactors and other electrical devices, giving you more flexibility and control over your energy consumption. It is ideal for use in residential buildings, multi-family houses, light commercial buildings, industrial plants, agricultural enterprises as well as in government and educational institutions. This add-on allows you to efficiently control your devices based on real-time weather data or the energy production of your PV system.

Recommended Accessories:

Features:

A galvanically isolated switch to extend Shelly Pro 3EM
Allows control of contactors and other electrical devices
Mountable on DIN rail
Compatible only with Shelly Pro 3EM

Use Cases:

Load shedding for energy saving based on the production of solar modules and wind turbines
Weather-based control of devices for efficient energy optimization
Balancing the energy production from PV systems by automatic activation of devices

Documentation:

Technical Specs:

Manufacturer: Allterco
Manufacturer SKU: Shelly_Pro_Add
Physical Attributes:
- Mounting: DIN-rail, attached to a Shelly Pro 3EM
- Maximum torque of the screw terminals: 0.4 Nm / 4.43 lb-in
- Conductor cross-section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, flexible and end-sleeve)
- Length of stripped conductor: 6 to 7 mm / 0.24 to 0.28 inch
- Housing Material: Plastic
- Color: White
Environmental Conditions:
- Ambient Temperature: -20 °C to 40 °C / -5 °F to 105 °F
- Humidity: 30% to 70% RH
- Maximum Altitude: 2000 m / 6562 ft
Electrical Data:
- AC Power Supply Voltage: Not applicable
- DC Power Supply Voltage: 3.3 V and 12 V (from Shelly Pro 3EM device)
- Power Consumption: < 1 W
- Sensors and Meters
- Internal Temperature Sensor: Yes
Output Contact:
- Maximum Switching Voltage AC: 240 V
- Maximum Switching Voltage DC: 30 V
- Maximum Switching Current AC: 2 A
- Maximum Switching Current DC: 2 A
Dimensions: 94 x 19 x 69mm
Weight: 75.7g