Shelly Pro 3EM 3CT 63

Overview

Shelly Pro 3EM-3CT63 (the Device) is a DIN rail mountable single or three-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 Modbus, 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/channel 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 3EM-3CT63 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.

Key Features

• 4 Quadrant measurement
• DIN rail mounting
• Multiple connection types: three phase or single phase installations
• Current transformer connection: non contact measurements.
• Phase sequence error detection (option)
• Channel-to-channel calibration
• No load threshold
• Optical pulse indication of energy usage
• Real-time clock: stored data keeps correct timestamps even if the internet connection is interrupted.
• Data logs: up to 60 days of data stored on the device for later retrieval
• External contactor control: loads can be controlled based on device automation or scripts. Available with the addition of the Shelly 3EM Switch Add-on
• Accuracy Class B (active energy)

Typical Applications

• Industrial Power Distribution: In industrial settings with complex power distribution systems, a combined 3-phase CT mounted over a circuit breaker can efficiently measure and monitor current levels. This is crucial for optimizing energy usage and identifying potential issues in real-time.
• Commercial Buildings and Facilities: For commercial buildings and facilities, where space is often limited in electrical panels, the compact design of the CT is beneficial. Mounting it directly over circuit breakers allows for efficient use of space while ensuring accurate current measurement.
• Motor Control Centers (MCCs): Motor control centers, which are commonly found in manufacturing plants and industrial facilities, often have multiple circuit breakers. A combined 3-phase CT mounted over each breaker provides an integrated solution for monitoring motor currents, aiding in preventive maintenance and troubleshooting.
• Data Centers: In data centers, where precise monitoring of power consumption is crucial, combined 3-phase CTs can be installed over circuit breakers to measure the current flowing through critical equipment.

Product Details