Shelly Pro EM-50
Device identification Device name: Shelly Pro EM-50 Device model: SPEM-002CEBEU50 Device SSID: ShellyProEM50-XXXXXX Short description Shelly Pro EM-50 (The Device) is a DIN rail mountable two-channel, single-phase energy meter. Enhanced with all the gen2 firmware flexibility and LAN connectivity, it provides professional integrators with additional options for end-customer solutions. It can work standalone in a local LAN and/or Wi-Fi network, or it can also be operated through cloud home automation services through MQTT, HTTP, and WebSocket. All inbound connections support TLS. The Device reports accumulated energy as well as instantaneous voltage, current, active, and apparent power per phase in real time. It stores data in non-volatile memory that can be retrieved for a period of up to 60 days in 1-minute intervals. The Device has a real-time clock to keep the correct time if the connection to an SNTP server is lost. Shelly Pro EM-50 can be accessed, set up, and monitored remotely by the User, as well as the Device can access and communicate with an automation system, as long as they are in the same network infrastructure. The Device has an embedded Web Interface which can be used to monitor and control the device, as well as adjust its settings. The Device has a built-in relay for contactor control. Features 4 Quadrant measurement DIN rail mounting Current transformer connection External contactor control via built in dry-contact relay Optical pulse indication of energy usage Real-time clock Data logs Accuracy Class B (active energy)1 Photovoltaic ready 1 The Device has a measurement accuracy of 1%, based on internal design validation and testing. Main applications Residential MDU (Multi Dwelling Units - apartments, condominiums, hotels, etc.) Light commercial (small office buildings, small retail/restaurant/gas station, etc.) Agricultural (farms, barns, silos, etc.) Government/municipal University/college Simplified internal schematics Device electrical interfaces Inputs 2 line inputs on screw terminals: 1 L and 1 N 2 current transformer inputs: IA and IB for current measurement Outputs 2 galvanically isolated relay terminals: I and O Ethernet port 1 RJ45 connector ⚠CAUTION! Plug in or unplug the LAN cable only when the Device is powered off! The LAN cable connector must not be metallic in the parts touched by the user to plug in or unplug the cable. Add-on interface Shelly proprietary serial interface ⚠CAUTION! High voltage on the add-on interface when the Device is powered! Connectivity Ethernet Wi-Fi Bluetooth Each connectivity option can be enabled or disabled by the user. Safety features Overheating protection Supported load types Resistive (incandescent bulbs, heating devices) Capacitive (LED light drivers, capacitor banks, electronic equipment, motor start capacitors) Inductive (transformers, fans, refrigerators, air-conditioners) User interface Inputs One tactile dome button Press briefly to toggle the state of the built-in relay. Press and hold for 5 sec to activate Device AP. Press and hold for 10 sec to factory reset. Outputs LED indication Power: Red light if the power supply is connected. Wi-Fi (varies): Blue light if in AP mode. Red light if in STA mode, and not connected to a Wi-Fi network. Yellow light if in STA mode, and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud disabled. Green light if in STA mode, and connected to a Wi-Fi network and the Shelly Cloud. The LED will be flashing Red/Blue if OTA update is in progress. LAN: Green light if LAN is connected. Out: Red light if the output relay contact is closed. Count: Red light will be flashing when the Device is measuring energy according to settings with frequency dependent on the energy flowing through the measured circuit. Specifications Type Value Physical Size (HxWxD): 94x19x69 ±0.5 mm / 3.70x0.75x2.71 ±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: 100 - 260 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 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 Basic wiring diagrams Legend Terminals Wires O Load circuit output terminal L Mono-phase live (110-240 V~) wire I Load circuit input terminal LA Split-phase live A (120 V~) wire IA First channel current transformer input LB Split-phase live B (-120 V~) wire IB Second channel current transformer input N Neutral wire L Live (110-240 V) terminal Current transformers N Neutral terminal CTA First channel current transformer CTB Second channel current transformer Shelly Smart Control Adding the device to the Shelly Smart Control Components and APIs This device All Shelly devices and services Compliance Shelly Pro EM-50 multilingual EU declaration of conformity 2025-07-25.pdf Shelly PRO EM - 50 UK PSTI ACT Statement of compliance.pdf Shelly Pro EM-50 AU NZ Certificate for Suitability.pdf Printed user guide Shelly Pro EM-50 multilingual printed user and safety guide.pdf Ръководство за употреба и безопасност
€112.00
In stock
