Shelly Pro 3EM-3CT63
Next-Generation DIN-Mountable Single or 3-Phase Energy Meter
Key Applications
The Shelly Pro 3EM-3CT63 is designed for comprehensive energy monitoring across various applications, including:
- Electric Vehicle (EV) Charging Monitoring: Track real-time energy consumption of EV chargers to manage and optimize usage within home energy budgets.
- Solar Power Management: Measure energy generated by solar systems and consumed from the grid, facilitating optimized energy usage and reduced grid dependency.
- Whole-Home Energy Monitoring: Monitor energy usage across all three phases to identify high-consumption appliances and make informed decisions for cost reduction and efficiency improvement.
- Factory Energy Monitoring and Optimization: Monitor heavy machinery energy consumption across phases in manufacturing plants to identify inefficiencies and reduce operational costs by optimizing usage during peak and off-peak hours.
- Commercial Building Energy Management: Monitor energy usage across floors or departments in large commercial buildings to accurately allocate costs, identify wastage, and implement strategies for improved overall energy efficiency.
Key Features
- Connectivity: LAN, Wi-Fi, and Bluetooth connectivity for high security and reliability. Supports simultaneous Wi-Fi and LAN usage as a backup.
- Measurement Capabilities: Features 4-quadrant measurement to quantify capacitive and inductive load types of active imported and exported energies. Offers Accuracy Class B for active energy, with a measurement accuracy of 1%.
- MODBUS Support: Enables easy and fast deployment in existing industrial installations.
- Energy Measurement: Monitors mono-phase electrical systems with up to 3 points simultaneously. Provides fast notifications and stores at least 60 days of 1-minute records.
- Scripting Functionalities: Fully supports mjS scripting, allowing users to create custom features and functionalities.
Technical Specifications
| Specification | Value |
|---|---|
| Device Power Supply | 110-240 VAC, 50/60 Hz |
| Voltmeters (RMS for each phase) | 100 - 260 V |
| Voltmeters Accuracy | ±1 % |
| Ammeters (RMS via CT for each phase and the Neutral) | 0 - 63 A |
| Complies with EU standards |
✔️ RED 2014/53/EU ✔️ LVD 2014/35/EU ✔️ EMC 2014/30/EU ✔️ RoHS2 2011/65/EU |
| Working Temperature | -20°C to 40°C / -5°F to 105°F |
| Max RF Power Wi-Fi | 15 dBm |
| Wireless/Wi-Fi Protocol | 802.11 b/g/n (2.4 GHz) |
| Frequency | 2400 - 2495 MHz |
| Operational Range Wi-Fi (depending on local conditions) |
• Up to 30 m / 100 ft indoors • Up to 50 m / 160 ft outdoors |
| Dimensions Shelly Pro 3EM-3CT63 (HxWxD) | 94x19x69 mm / 3.70x0.75x2.71 in |
| Dimensions Shelly 3CT63 (HxWxD) | 14x54x26 mm / 0.55x2.12x1.02 in |
Wiring Diagram and Components
The Shelly Pro 3EM-3CT63 utilizes a DIN-mountable design with specific terminals for power and current transformer connections. The device features indicators for Power, Wi-Fi, LAN, and Count, along with a Reset button.
Device Terminals:
- A: Phase A terminal
- B: Phase B terminal
- C: Phase C terminal
- N: Neutral terminal
- IA: Phase A current transformer input
- IB: Phase B current transformer input
- IC: Phase C current transformer input
- IN: Neutral current transformer input (optional)
Wires:
- LA: Phase A live (110-240 V~) wire
- LB: Phase B live (110-240 V~) wire
- LC: Phase C live (110-240 V~) wire
- N: Neutral wire
Current Transformers:
- 3CT63: 3-phase current transformer (63A)
- CTN: Neutral current transformer (optional, not included)
The diagram indicates the direction of measured energy flow with an arrow labeled K->L.
