Why Choose the ABB A44 553-100 Three-Phase Energy Meter?
The ABB A44 553-100 is an advanced transformer-connected three-phase electricity meter designed for high-accuracy energy measurement and detailed power-quality monitoring in commercial and industrial electrical systems. As part of the ABB A44 DIN rail mounted meter range, this Platinum-level meter combines active and reactive energy measurement with M-Bus communications, advanced load profiling and harmonic analysis.
The A44 553-100 measures active and reactive energy in both import and export directions and supports four tariffs. It also monitors a comprehensive range of electrical instrument values including active, reactive and apparent power, currents, line-to-line and line-to-neutral voltages, frequency, power factor and cos phi, providing detailed information for energy-management and electrical-monitoring systems.
Designed for indirect CT/VT-connected metering, the meter supports a 1 A rated current with a maximum current of 6 A and a rated voltage range of 3 × 57.7/100–288/500 V AC. Integrated M-Bus and infrared communications, four individually configurable I/O channels, demand monitoring, advanced load profiles and harmonic measurement make it particularly suitable for sophisticated energy-management applications.
Key Advantages
- Advanced three-phase transformer-connected energy meter for commercial and industrial installations.
- Platinum functionality level with comprehensive energy and power-quality monitoring.
- Measures active and reactive energy in both import and export directions.
- Class C / Class 0.5 S active-energy accuracy for high-accuracy metering.
- Integrated M-Bus communication for connection to compatible energy-management systems.
- Four configurable I/O channels provide flexible pulse, alarm, tariff and external pulse-counting functions.
- Advanced load profiles, maximum and minimum demand monitoring, harmonics and THD measurement.
Key Features
- ABB A44 three-phase energy meter series.
- Platinum functionality level.
- Transformer-connected CT/VT metering for three- and four-wire networks.
- 1 A rated current and 6 A maximum current.
- 3 × 57.7/100–288/500 V AC rated voltage.
- Class C / Class 0.5 S active-energy accuracy.
- Class 2 reactive-energy accuracy.
- Active and reactive energy measurement for import and export.
- Four energy tariffs with flexible tariff control.
- Integrated M-Bus and infrared communication interfaces.
- Four individually configurable I/O channels.
- Previous-value storage plus maximum and minimum demand monitoring.
- Advanced load profiles for detailed consumption analysis.
- Harmonic measurement and Total Harmonic Distortion (THD) monitoring.
- Backlit digital display with up to seven counter positions.
- Compact 7 DIN-module mounting format.
Advanced Energy and Power-Quality Monitoring
Transformer-connected electricity meters such as the ABB A44 553-100 enable accurate measurement in higher-current electrical installations by using external current and voltage transformers. Configurable transformer ratios allow the meter to represent primary-system electrical quantities accurately while retaining a compact DIN rail format suitable for switchboards and control panels.
The Platinum-level A44 553-100 extends conventional energy metering with advanced load profiles, demand recording and power-quality analysis. Harmonic measurement up to the 16th harmonic and THD calculation help users evaluate waveform distortion, while M-Bus connectivity allows measurement data to be incorporated into compatible building-management, energy-management and remote-meter-reading systems.
Typical Applications
- Industrial three-phase energy monitoring.
- Commercial building electrical distribution systems.
- CT/VT-connected switchboards and distribution panels.
- Building-management and energy-management systems.
- Multi-tariff electricity monitoring.
- Power-quality, harmonic and THD monitoring.
- Demand monitoring and advanced load profiling.
- Remote meter-reading systems using M-Bus communication.
