Why Choose the ABB A43 512-100 Three-Phase Energy Meter?
The ABB A43 512-100 is an advanced three-phase direct-connected DIN rail energy meter designed for accurate monitoring of electrical energy and key network parameters in industrial and commercial installations. As part of the ABB A43 EQ meter series, it combines active and reactive energy measurement with extensive monitoring, communications and data-logging capabilities.
This Platinum-level meter provides measurement of imported and exported energy together with electrical parameters including voltage, current and frequency. Advanced functions include load profiling, maximum and minimum demand, event logging, tariff management, alarms and harmonic monitoring. An easy-to-read backlit pixel-oriented LCD allows multiple measured quantities to be viewed clearly, while RS-485 communication provides integration with building management, energy monitoring and industrial automation systems.
Designed for three-phase direct connection up to 80 A, the A43 512-100 can be used in 3- and 4-wire electrical systems. It supports Modbus RTU and EQ Bus communication, includes four programmable inputs or outputs and is MID approved, making it suitable for applications requiring dependable energy monitoring, sub-metering and consumption analysis.
Key Advantages
- Advanced three-phase direct-connected energy meter for industrial and commercial installations.
- Direct connection up to 80 A simplifies installation without external current transformers in suitable applications.
- Measures active and reactive energy with import and export registers.
- RS-485 Modbus RTU and EQ Bus communication for integration with energy management and automation systems.
- Advanced monitoring including load profiles, demand values, alarms, event logs and harmonics.
- MID approved and verified for applications requiring compliant energy measurement.
Key Features
- ABB A43 EQ meter series.
- Three-phase direct-connected metering up to 80 A.
- Active energy accuracy Class 1 / Class B for MID meters.
- Reactive energy accuracy Class 2.
- Measurement of active and reactive energy with import and export registers.
- RS-485 interface with Modbus RTU and EQ Bus.
- Four programmable inputs or outputs for flexible monitoring and control.
- Internal clock for tariff switching, historical values and timestamped event logging.
- 8-channel load profile for detailed consumption analysis.
- Monitoring of harmonics up to the 16th harmonic.
- Up to 25 configurable alarms and event logging.
- Large backlit pixel-oriented LCD for clear presentation of measured values.
- DIN rail mounting for straightforward installation in electrical distribution panels.
Advanced Energy Monitoring and System Integration
The ABB A43 512-100 provides considerably more information than basic accumulated energy consumption. Its instrumentation, demand monitoring, load profiles, tariff functions, alarms and event records enable operators to analyse how electrical energy is being consumed and identify changes in loads or operating conditions.
RS-485 connectivity with Modbus RTU and EQ Bus makes the meter suitable for integration into centralised energy management, building automation and industrial monitoring systems. Import and export measurement also enables bidirectional energy flows to be recorded, while harmonic and THD monitoring supports more detailed assessment of electrical network conditions.
Typical Applications
- Industrial electrical distribution and energy monitoring.
- Commercial buildings and building management systems.
- Energy sub-metering and consumption allocation.
- Production facilities and manufacturing plants.
- Electrical distribution panels and switchboards.
- Energy efficiency and load-profile monitoring.
- Import and export energy measurement.
- Automation and remote energy data acquisition systems.
