Shelly Pro 3EM-3CT63: User and Safety Guide
This document provides essential information for the installation and operation of the Shelly Pro 3EM-3CT63, a professional three-phase energy meter designed for DIN-rail mounting.
Product Overview
The Shelly Pro 3EM-3CT63 is a professional-grade, DIN-rail mountable energy meter. It is designed to monitor electricity consumption across three phases and integrates seamlessly with the Shelly ecosystem and other smart home platforms. The device offers both Wi-Fi and LAN connectivity for remote access and control.
Key Features
- Three-phase energy monitoring
- DIN-rail mounting
- Wi-Fi and LAN connectivity
- Remote access and control via Shelly app
- Supports integration with various smart home systems
- Designed for use with current transformers (CTs) up to 63A
Terminal Connections
Proper wiring is crucial for the safe and effective operation of the Shelly Pro 3EM-3CT63. Always ensure the power supply is disconnected before commencing any electrical work.
Device Power Supply
The device requires a power supply connected to the terminals labeled 'L' (Live) and 'N' (Neutral). This powers the Shelly device itself.
Current Transformer (CT) Inputs
The Shelly Pro 3EM-3CT63 features three inputs for current transformers: IA, IB, and IC. These terminals are used to measure the current flowing through each of the three electrical phases. An optional 'CTN' terminal is also available, potentially for neutral current measurement or specific configurations.
The diagrams illustrate the connection points for the current transformers. A notation '[K] [connects to] [L]' appears multiple times, indicating connection points or paths. The inputs for the phases are labeled as 'LA LB LC (3~)' for three-phase connections, and 'L L L (1~)' may indicate single-phase configurations or specific wiring scenarios.
Output Terminals
The device includes output terminals labeled 'L' and 'N'. These can be utilized for controlling external loads or for signaling purposes, depending on the specific application and device configuration.
Connectivity and Control Terminals
Additional terminals facilitate device management and connectivity:
- LAN: For a stable wired network connection.
- Wi-Fi: For wireless network connectivity.
- Count: Likely used for pulse counting inputs or outputs.
- Reset: A dedicated button or terminal for resetting the device to its default settings.
- IC IN: Possibly an input for current sensing or an external trigger signal.
Safety Precautions
Adherence to electrical safety standards is paramount. Installation and maintenance should only be performed by qualified electricians. Ensure all connections are secure and correctly wired to prevent damage to the device or potential hazards.
- Always disconnect the main power supply before installation or maintenance.
- Use only compatible current transformers specified for the device.
- Do not exceed the maximum current rating of 63A.
- Protect the device from moisture and extreme environmental conditions.
- Consult the full user manual for detailed safety instructions and warnings.
Compliance and Certifications
The Shelly Pro 3EM-3CT63 is marked with symbols indicating its compliance with relevant European standards:
- CE: Conformité Européenne (European Conformity) – signifies compliance with EU safety, health, and environmental protection requirements.
- RoHS: Restriction of Hazardous Substances – indicates that the device is compliant with regulations limiting the use of certain hazardous materials in electrical and electronic equipment.
