Name: Shelly Pro 3EM Switch Add-On
Brand: Shelly
Price: 21.99 GBP
Availability: InStock

Shelly Pro 3EM Switch Add-On

£21.99 - £21.99

£21.99

£21.99 - £21.99

£21.99

Availability:

Low stock

Quantity

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

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.

What’s Included

Shelly Pro 3EM Switch Add-On module

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