Shelly Pro 3EM Switch Add-On

£21.99

1 in stock

Overview

Shelly Pro 3EM Switch Add-On is a galvanically isolated switching expansion module designed exclusively for Shelly Pro 3EM. It adds dry contact switching capability to the energy meter, allowing you to control contactors and external electrical devices based on measured consumption or automation logic. DIN-rail mountable and powered directly from the Shelly Pro 3EM, this add-on enables advanced load control and energy-based automation in professional installations.

Key features

  • Expansion add-on designed exclusively for Shelly Pro 3EM
  • Provides galvanically isolated dry contact switching
  • Enables control of contactors and external electrical devices
  • DIN-rail mountable and mechanically attached to Shelly Pro 3EM
  • Powered directly from the Shelly Pro 3EM device
  • Ideal for energy-based automation and load control

Product information

Use cases
  • Contactor and Load Control
  • Control external contactors, relays, or low-power electrical devices based on energy measurements.
  • Energy-Based Automation
  • Trigger switching actions when power thresholds, consumption limits, or schedules are met.
  • Professional Electrical Installations
  • Extend Shelly Pro 3EM functionality in commercial or industrial DIN-rail setups.
  • Smart Energy Management
  • Combine precise three-phase monitoring with controlled load switching for optimisation and protection.
Technical specifications
Physical
Size (HxWxD)
94 × 19 × 69 mm (±0.5 mm)
Weight
20 g (±1 g)
Mounting
DIN rail (attached to Shelly Pro 3EM)
Shell material
Plastic
Colour
White
Environmental
Ambient temperature
-20°C to +40°C
Humidity
30% to 70% RH
Max altitude
2000 m
Electrical
Power supply AC
N/A
Power supply DC
3.3 V and 12 V (from Shelly Pro 3EM)
Power consumption
< 1 W
Output Circuit 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
Compatibility
Supported device
Shelly Pro 3EM only
What’s included
  • Shelly Pro 3EM Switch Add-On module