Why Choose the ABB B24 352-100 Three-Phase Energy Meter?
The ABB B24 352-100 is an advanced three-phase transformer-connected electricity meter designed for accurate energy monitoring in commercial, residential and industrial electrical installations. Part of ABB's B24 DIN-rail mounted meter range, it uses external current transformers for indirect measurement and provides high-accuracy monitoring of three-phase electrical systems.
Designed for 3-wire and 4-wire networks, the B24 352-100 measures active and reactive energy in both import and export directions. Its Silver functionality level provides Class C / Class 0.5 S active-energy accuracy, up to four tariffs, instrumentation values, a resettable intermediate register, event logging and up to 25 configurable alarm functions.
The meter incorporates an RS-485 communication interface supporting Modbus RTU and ABB EQ Bus, together with two inputs and two outputs for pulse, tariff and alarm functions. With MID approval and verification, a clear backlit display and compact 4-module DIN-rail format, the B24 352-100 provides a comprehensive solution for connected energy management and precision sub-metering.
Key Advantages
- High-accuracy three-phase transformer-connected energy metering.
- Class C / Class 0.5 S active-energy accuracy for precision monitoring.
- Measures active and reactive energy in both import and export directions.
- Suitable for 3-wire and 4-wire three-phase networks.
- 1 A nominal current with a maximum meter current of 6 A.
- Integrated RS-485 communications for connected energy monitoring.
- Supports Modbus RTU and ABB EQ Bus communication protocols.
- Two inputs and two outputs support pulse, tariff-control and alarm functions.
- Supports up to four tariffs for detailed consumption allocation.
- MID approved and verified for compliant metering applications.
Key Features
- ABB B24 series three-phase energy meter.
- Silver functionality level.
- Transformer-connected current measurement.
- 1 A nominal current and 6 A maximum current.
- Suitable for three-phase 3-wire and 4-wire systems.
- 230–240 V phase-to-neutral rated voltage.
- 380–415 V phase-to-phase rated voltage.
- 50/60 Hz operating frequency.
- Active energy import and export measurement.
- Reactive energy import and export measurement.
- Class C / Class 0.5 S active-energy accuracy.
- Class 2 reactive-energy accuracy.
- Resettable intermediate energy register.
- Support for up to four tariffs.
- Two inputs and two outputs for pulse and alarm functions.
- Up to 25 configurable alarm functions and event logging.
- RS-485 Modbus RTU / ABB EQ Bus communication.
- Integrated infrared communication interface.
- Easy-to-read backlit digital display.
- Compact 4 DIN-module construction.
High-Accuracy CT Metering with RS-485 Communications
The ABB B24 352-100 uses external current transformers to provide accurate three-phase energy measurement in installations where direct connection is unsuitable. Its Class C / Class 0.5 S active-energy accuracy makes it particularly useful for applications requiring precise consumption monitoring, while active and reactive import/export registers provide detailed information on bidirectional energy flow.
Integrated RS-485 communication using Modbus RTU or ABB EQ Bus allows meter readings and instrumentation data to be incorporated into compatible building-management, automation and energy-management systems. Multi-tariff capability, two inputs, two outputs, alarm functions and event logging further extend the meter's usefulness for sophisticated sub-metering and energy-analysis applications.
Typical Applications
- Industrial three-phase energy monitoring.
- Commercial building electricity metering.
- Electrical distribution boards and switchboards.
- CT-connected higher-current electrical installations.
- High-accuracy energy sub-metering.
- Three-phase 3-wire and 4-wire networks.
- Active and reactive import/export energy monitoring.
- RS-485 Modbus energy-management systems.
- Building-management and automation systems.
- Multi-tariff electricity metering.
- MID-compliant metering applications.
