# Shelly Pro EM-50 DIN-Rail Mountable Two-Channel Single Phase Energy Meter With Integrated Switch For Contactor Control

## Shelly Pro EM-50 DIN-Rail Mountable Two-Channel Single Phase Energy Meter With Integrated Switch For Contactor Control

The Shelly Pro EM-50 is a DIN-rail mountable, dual-channel single-phase energy meter that uses two included 50A split-core current transformer clamps for non-invasive current monitoring on two separate circuits. It reports real-time voltage, current, power factor and accumulated energy per channel, and includes a built-in 2A dry-contact relay output that can drive an external contactor to switch high-power loads on or off. It connects via Wi-Fi, LAN, or Bluetooth and supports Modbus TCP, MQTT, and webhooks for integration with home or building automation systems.

### Specifications

**SKU**

SHELLY PRO EM - 50

**Brand**

Shelly

**Category**

Smart Home

**Key Specs**

2-channel single-phase energy meter; DIN-rail mounted; CT input rated up to 50A per channel (2x 50A clamps included); Measurement accuracy: 1%; Integrated 2A dry-contact relay for contactor control; Connectivity: Wi-Fi, LAN (Ethernet), Bluetooth; Data logging: up to 60 days at 1-minute resolution (local); Protocols: Modbus TCP, MQTT, WebSocket, HTTPS, UDP, TLS; Warranty: 5 years

## Details

- **Price:** 2639.0 ZAR
- **Vendor:** Shelly
- **Type:** Smart Home
- **Tags:** Nology, Shelly, Smart Home

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2639.00 ZAR | In stock |

## Images

- Shelly Pro EM-50 DIN-Rail Mountable Two-Channel Single Phase Energy Meter With Integrated Switch For Contactor Control

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/shelly-shelly-pro-em-50)
> Updated: 2026-07-07