Three-phase four-wire active electronic energy meters are developed by our company using microelectronic technology for measuring electric energy. They incorporate imported dedicated large-scale integrated circuits, apply digital sampling processing technology, and utilize advanced SMT processes to create a new type of three-in-one electronic energy meter. This energy meter fully complies with the GB/T17215.321-2008 national standard and the IEC6205-21 international standard for level 1 three-phase active energy meters. It boasts excellent reliability, compact size, lightweight, attractive appearance, and advanced technology. It also has good resistance to electromagnetic interference, low self-consumption for energy saving, high precision, high overload capacity, high stability, anti-theft features, and long lifespan. This meter is suitable for measuring three-phase AC active energy with a rated frequency of 50Hz or 60Hz. It is designed for fixed indoor installation and is suitable for environments with temperatures not exceeding -25 to 55°C.Relative humidity should not exceed 95%, and the air should be free of corrosive gases and avoid dust, mold, salt spray, condensation, insects, and other influences.
Product Features
Real-time monitoring of active electrical energy
5+1 Wide Temperature Range LCD Display
35mm standard rail mounting, enhancing work efficiency
Automatic data saving and no record loss after power failure
Application Fields: Industrial Manufacturing, Commercial Buildings, Integrated Factories, Substations, Public Facilities, etc.
Customization: We offer customizable services for logos, appearance, and functions.
Technical Specifications
Three-phase four-wire active electronic energy meter specifications
| Name | Accuracy | Rated Voltage UB | Rated Current |
| Three-phase four-wire energy meter | Grade 1 | 220/380V、57.5/100V | 1.5(6)A、5(20)A、10(40)A、15(60)A、20(80)A、5(80)A、20(100)A |
Tolerance Limit
Basic error limit of an electric energy meter under balanced load condition
| Current Value | Power Factor (COSφ) | Percentage Error Limit (%) | ||
| Direct Current Input | Through transformer connection | Level 1 | Grade 2 | |
| 0.05Ib | 0.02Ib | 1.0 | ±1.5 | ±2.5 |
| 0.1Ib | 0.05Ib | 0.5L | ±1.5 | ±2.5 |
| 0.8C | ±1.5 | |||
| 0.1Ib~1MAX | 0.05Ib~1max | 1.0 | ±1.0 | ±2.0 |
| 0.2Ib~1max | 0.1Ib~lmax | 0.5L | ±1.0 | ±2.0 |
| 0.8C | ±1.0 | - | ||
Installation Precautions
1. Installation of a three-phase four-wire active electronic energy meter requires an experienced electrician or professional, and it is essential to read this manual thoroughly.
2. The electricity meter should be installed in a well-ventilated and dry indoor location, using a 35mm standard track-type installation. The bottom plate of the electricity meter should be securely fastened to a strong, fire-resistant, and non-vibrating wall.
3. In locations with dirt and potential damage to the installation, the electrical meter should be mounted inside a protective cabinet.
When installing wiring, follow the wiring diagram on the right side of the electrical meter or the corresponding diagram in this manual, accommodate multiple strands of copper wire, and avoid poor contact that may cause...
Three-phase four-wire active electronic energy meters are not functioning properly or have been damaged.
Dimensions and wiring diagram
Outline drawing
Wiring diagram
