Shelly Pro 3EM Switch Add-On
£21.99
1 in stock
Overview
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




