Shelly Pro EM-50

Shelly Pro EM-50 — Dual Channel WiFi Energy Meter with 2 x 50A Clamps

The Shelly Pro EM-50 (model SPEM-002CEBEU50) is a 2-channel smart energy meter with Gen2 firmware and DIN rail mounting. It includes 2 x 50A current transformers and a contactor output for controlling high loads.

Key Specifications

• Model: SPEM-002CEBEU50
• 2 metering channels (2×50A with CTs included)
• Integrated contactor output
• Class B accuracy, 60 days storage
• WiFi 802.11 b/g/n + Ethernet RJ45 + BLE 4.2
• Dimensions: 94 × 19 × 69 mm, 63 g

Use Cases in Spain

• Monitoring electricity consumption in homes and apartments
• Supervision of photovoltaic production and self-consumption control
• Contactor control for HVAC management

Integrations

Compatible with Home Assistant (local), Amazon Alexa, Google Home, MQTT, HTTP REST API, mJS scripting, and Modbus TCP. No hub or subscriptions required.

• RF Band: 2400 – 2495 MHz
• Max RF Power: <20 dBm
• Wi-Fi Protocol: 802.11 b/g/n
• Wi-Fi Range: Up to 30m indoors / 50m outdoors
• Ethernet: RJ45 Port (LAN)
• Bluetooth Protocol: BLE 4.2
• Bluetooth Range: Up to 10m indoors / 30m outdoors

Official Resources

• Shelly Knowledge Base — Shelly Pro EM-50
• Web Interface Guide

APIs and Protocols

• This device
• All Shelly Devices and Services