Eaton EMI Meter Series
The most flexible way to measure energy
Eaton Metering Solutions
Introduction to the EMI Meter Series
Measurement is the basis for every energy management system. Eaton offers the EMI meter series for flexible energy measurement.
The EMI meter series offers absolute flexibility with its double assembly capability, allowing the removable display to be used on both the front and back. It can be mounted on a DIN rail or in a control panel with dimensions of 72x72 mm or 96x96 mm (with an optional cover).
Enhanced flexibility is achieved with the new Rogowski coil series, ideal for retrofitting. These air coils connect directly to the meter without an intermediate amplifier, offering advantages over conventional current transformers.
Current transformers with secondary currents of 1 A or 5 A can also be used. Eaton's T-Line current transformers range from 30 A to 5000 A with accuracy classes from 0.2s to 3. More information is available at www.eaton.com/meter.
Features and Benefits
- DIN-Rail and Panel mounting (72x72 mm & 96x96 mm)
- CE and cULus certified
- Modbus RTU and Pulse Output
- Compatibility with Rogowski Coils or 1/5A Current Transformers
- THD up to 15th harmonics
- Accuracy Class 1 for active energy according to EN62053-21
- Standard meter functions: W, var, PF, Hz, Phase-sequence, etc.
- Multiple security features: PIN code entry, display locking, or display removal to prevent unauthorized access.
Product and Article Numbers
| Type/Article Numbers | Description |
|---|---|
| EMI3P-Y2C0 | Energy Meter for 1/5 A Current Transformers |
| EMI3P-Y2R0 | Energy Meter for Rogowski Coils |
| EMI3P-ROG4-4 kA | EMI3P Rogowski coils with 400 mm length |
| EMI3P-ROG6-4 kA | EMI3P Rogowski coils with 600 mm length |
| EMI3P-ROG9-4 kA | EMI3P Rogowski coils with 900 mm length |
| EMI3P-ADAPTER96 | Adapter 96 mm x 96 mm |
| EMI3P-DISPLAY | Spare Display for EMI3P Meter |
Rogowski Air Coils
Rogowski air coils offer flexibility, adaptability, and electromagnetic immunity, with useful features for various installations:
- Measuring range from 20 A to 4,000 A with a single coil.
- Accuracy of ±1% and Linearity of ±0.2%.
- Suitable for single cables, cable bundles, or high capacity busbars.
- Absence of ferromagnetic cores eliminates magnetic interference.
- Quick and easy installation with unique click connectors.
- Direct connection to EMI3P-Y2R0 without an additional integrator.
- Compliance with Cat. IV (600 V) and Cat. III (1000 V).
- Available in 3 different sizes and colors with connection side color indication.
- CE and cULus certified.
Specific Rogowski coil models include:
- EMI3P-ROG4-4 kA: 400 mm length for cable diameters up to 115 mm.
- EMI3P-ROG6-4 kA: 600 mm length for cable diameters up to 179 mm.
- EMI3P-ROG9-4 kA: 900 mm length for cable diameters up to 275 mm.
Dimensions
DIN Configuration
Diagrams illustrate DIN rail mounting configurations. [Diagram description: Shows standard DIN rail mounting dimensions for the meter.]
Dimensions and Panel Cut Out (72x72 mm Panel Mounting)
Diagrams provide precise dimensions for panel mounting, including cut-out sizes. [Diagram description: Shows panel cutout dimensions of 68x68 mm with a tolerance of +0.7 mm for 72x72 mm panel mounting.]
Wiring Diagrams
The document provides comprehensive wiring diagrams to illustrate various connection configurations for the EMI Meter Series across different electrical systems. These diagrams cover:
3-Phase Systems
- Self Power Supply (3P.n): Diagrams show connections for 3-phase, 4-wire unbalanced loads using 3-CTs (Fig. 1) and for 3-phase, 4-wire unbalanced loads with 3-CTs and 3-VT/PTs (Fig. 2).
- System Type Selection (3P): Illustrates 3-phase, 3-wire unbalanced loads with 3-CTs (Fig. 3), 3-CTs and 3-VT/PTs (Fig. 4), 3-CTs and 2-VT/PTs (Fig. 5), 2-CTs (ARON) (Fig. 6), 2-CTs and 3-VT/PTs ARON (Fig. 7), and 2-CTs and 2-VT/PTs ARON (Fig. 8).
- Self Power Supply (3P.1): Depicts 3-phase, 3/4-wire balanced loads with a 1-CT connection (Fig. 9).
- System Type Selection (3P): Shows 3-phase, 3-wire balanced loads with 1-CT and 3-VT/PTs (Fig. 10) and 1-CT and 2-VT/PTs (Fig. 11). A note clarifies that the N connection is optional and calculations consider voltage relevant to L1.
2-Phase Systems
- System Type Selection (2P): Includes diagrams for 2-phase, 3-wire configurations with 2-CT connections (Fig. 12) and 2-CT and 2-VT/PT connections (Fig. 13).
1-Phase Systems
- System Type Selection (1P): Features diagrams for 1-phase, 2-wire configurations with a 1-CT connection (Fig. 14) and 1-CT and 1-VT connections (Fig. 15).
