Three Phase multi-function energy meter Suppliers, Factory
commercial power monitoring. It supports real-time measurement of voltage, current, power, energy, and power factor with high precision. As a three phase multifunctional smart meter manufacturer, we provide OEM/ODM customization, RS485 Modbus communication, and solutions for large-scale energy management systems.
Main paremeters
| Type | Three phase four wire electricity meter direct connection- D3001-AY |
| Voltage | |
| Nominal voltage Un | 3x277/480VAC |
| Voltage range | 0.8-1.15Un |
| Frequency | |
| Nominal frequency fn | 60 Hz |
| Frequency range | 0.98-1.02fn |
| Current | |
| Reference current Irer=Ib=10Ir | 5A |
| Maximum current Imax | 65A |
| Minimum current Imin | 0.25 A |
| Starting current Ist | 0.004I |
| Accuracy | |
| Active | Class B in compliance with DIN EN 50470-1/3 Class 1.0 in compliance with IEC62053-21 |
| Reactive | Class 2.0 in compliance with IEC62053-23 |
| Measuring Energy | |
| Two energy directions | +A/-A,+R/-R, |
| Reverse locking | +A,+R, |
| Meter constant | |
| LED-Output | 1000 imp/kWh,1000 imp/kvarh |
| Display | |
| LCD | 7 digit |
| Life cycle | >12 years |
| RS485-Data Interface | |
| Connector | Two screws type |
| Parameter | 9600/19200/38400 bps,8E1/8N1/8O1(parameters adjustable) |
| Communication protocol | Modbus RTU |
| Power Consumption | |
| Voltage circuit | <2W/10VA at Un |
| Current circuit | <4VA at Ib |
| Temperature Range &Humidity | |
| Typical Operation | -30℃ to+70℃ |
| Storage | -40℃ to+85℃ |
Industrial-Grade Electric Three Phase Smart Energy Meter Supplier for Utility Projects
Selection Guide for Three-Phase Electricity Meters for Large Projects
1. Current Specification Matching
Direct Access Type: Suitable for scenarios with current ≤ 100A (e.g., 5(60)A specification, the current before the slash is the basic current, and the current after is the maximum current)
Transformer Access Type: When the current is > 100A, a transformer is required (e.g., 800A meter is recommended for a 400kW load)
2. Accuracy Level Selection
General Commercial: 1.0-level accuracy is sufficient
Industrial/Substation: 0.5S-level accuracy is required (e.g., XPE-400 model)
Key scenarios such as power plants require 0.2S-level accuracy
3. Functional Requirements
Prepayment Function: Model number contains "Y" (e.g., DTSY)
Remote Communication: Supports RS485, 4G, etc.
Power Quality Analysis: Harmonic Monitoring, Multi-Rate Billing
4. Wiring Method
Three-Phase Three-Wire: Used when a neutral line is not available (e.g., high-voltage meters)
Three-Phase Four-Wire: Required when single-phase loads are present (e.g., commercial complexes)
5. Expansion and Maintenance
Transformer Selection: The current ratio must match the meter (e.g., 100A/5A)
Protection Rating: IP54 or higher is required for humid/high-temperature environments
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