Shelly Pro EM - 50

Wi-Fi Energy Meter with Contactor Control Shelly Pro EM-50 is a DIN rail mountable two-channel, single-phase energy meter. It has an integrated switch with dry contacts for contactor control. KEY FEATURES LAN, Wi-Fi and Bluetooth connection for high security and reliability Reports accumulated energy, as well as instantaneous voltage, current, active and apparent power per phase in real time Power metering – two independent measurement channels on the same phase 4 Quadrant measurement with optical pulse indication of energy usage Can be used with contactors for bigger loads Accuracy Class B (IEC 62053-21) Photovoltaic ready Stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals. No hub required! Easy control through the Shelly Smart Control app, most platforms and protocols, as well as voice assistants. Use it with Alexa, Home Assistant, or your preferred automation system. Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS and custom certificates & Modbus TCP protocol SPECIFICATIONS Physical Size (HxWxD): 94x19x69 ±0.5 mm / 3.70×0.75×2.71 ±0.02 in Weight: 63 ±1 g / 2.22 ±0.05 oz Mounting: DIN rail Screw terminals max torque: 0.4 Nm / 4.43 lbin Conductor cross section: 0.5 to 2.5 mm² / 20 to 14 AWG (solid, stranded and bootlace lugs) Conductor stripped length: 6 to 7 mm / 0.24 to 0.28 in Shell material: Plastic Color: White Environmental Ambient temperature: -20 °C to 40 °C / -5 °F to 105 °F Humidity: 30 % to 70 % RH Max. altitude: 2000 m / 6562 ft Electrical Power supply voltage AC: 110 – 240 V, 50/60 Hz Power supply voltage DC: N/A Power consumption: < 3 W Output circuits ratings Max switching voltage AC: 240 V Max switching voltage DC: N/A Max switching current: 2 A Sensors, meters Internal-temperature sensor: Yes Voltmeter (RMS): 100 – 260 V Voltmeters accuracy: ±1 % Ammeters (RMS via CT): 0 – 50 A Ammeters accuracy: ±1 % (5 – 50 A), ±2 % (0 – 5 A) Power and energy meters: Active and apparent power Active and apparent energy Power factor No load threshold: 30 VA per phase Measurement data storage: At least 60 days of 1 min data resolution Data export: CSV for PQ recorded values JSON format export through RPC Radio RF band: 2400 – 2495 MHz Max. RF power: <20 dBm Wi-Fi protocol: 802.11 b/g/n Wi-Fi Range: Up to 30 m / 100 ft indoors and 50 m / 160 ft outdoors (Depends on local conditions) Bluetooth Protocol: 4,2 Bluetooth Range: Up to 10 m / 33 ft indoors and 30 m / 100 ft outdoors (Depends on local conditions) MCU CPU: ESP32-D0WDQ6 Flash: 16 MB Firmware capabilities Webhooks (URL actions): 20 with 5 URLs per hook Scripting: Yes MQTT: Yes CoAP: No