2CMA100184R1000 ABB B24 353-100 Three-Phase CT-Connected Energy Meter with M-Bus

Why Choose the ABB B24 353-100 Energy Meter?

The ABB B24 353-100 is an advanced three-phase current-transformer-connected electricity meter designed for accurate energy measurement in commercial and industrial electrical installations. As part of the ABB B24 EQ meter series, this Silver-function meter combines high-accuracy active and reactive energy measurement with multi-tariff functionality, configurable inputs and outputs, and integrated M-Bus communication.

Designed for indirect measurement through external current transformers, the B24 353-100 supports 1 A nominal and up to 6 A measurement current. It measures active and reactive energy in both import and export directions, with active energy accuracy to Class C (Class 0.5 S) and reactive energy accuracy to Class 2. The meter is suitable for 3-wire and 4-wire three-phase systems and is IEC approved as well as MID approved and verified.

With a system voltage of 3 × 230/400 V AC, up to four tariffs, two inputs, two outputs and integrated M-Bus communication, the B24 353-100 is well suited to sophisticated sub-metering and energy-management installations. Its compact four-module DIN-rail enclosure, backlit display, instrumentation values, alarm functions and event logging make it a versatile solution for monitoring electrical distribution systems.

Key Advantages

• Advanced three-phase CT-connected energy meter for indirect measurement.
• Class C (Class 0.5 S) active energy accuracy for precise energy monitoring.
• Measures active and reactive energy in import and export directions.
• Integrated M-Bus communication for remote meter reading and system integration.
• Supports up to four tariffs for detailed consumption allocation.
• Two inputs and two outputs support pulse, tariff and alarm functions.
• Instrumentation values, configurable alarms and event logging support detailed electrical monitoring.
• IEC approved and MID approved and verified for compliant metering applications.
• Compact four-module DIN-rail construction simplifies installation in distribution equipment.

Key Features

• ABB B24 EQ meter series, Silver functionality.
• Three-phase transformer-connected electricity meter.
• 1 A nominal current with measurement up to 6 A.
• 3 × 230/400 V AC system voltage.
• Class C (Class 0.5 S) active energy accuracy.
• Class 2 reactive energy accuracy.
• Active and reactive energy measurement with separate import and export registers.
• Resettable register for intermediate energy values.
• Up to four energy tariffs.
• Integrated M-Bus communication.
• Infrared communication interface.
• Two inputs and two outputs for pulse, tariff or alarm functions.
• Multiple electrical instrumentation values.
• Up to 25 configurable alarm conditions.
• Event logging for enhanced energy monitoring.
• Backlit digital display for clear local readings.
• Compatible with 3-wire and 4-wire three-phase networks.
• Compact four-module DIN-rail format.

Reliable CT-Connected Energy Monitoring

Current-transformer-connected meters such as the ABB B24 353-100 allow three-phase electrical systems to be monitored without routing the full load current through the energy meter. External current transformers provide a reduced measurement current to the meter, making this architecture suitable for higher-current distribution circuits while maintaining accurate measurement of active and reactive energy.

The B24 353-100 extends this functionality with bidirectional import/export measurement, multi-tariff registers, electrical instrumentation, alarms and event logging. Integrated M-Bus communication allows meter information to be collected remotely by compatible building-management and energy-management systems, providing a practical platform for detailed consumption analysis and sub-metering.

Typical Applications

• Commercial building energy monitoring.
• Industrial electrical distribution systems.
• Three-phase CT-connected sub-metering.
• Building management systems using M-Bus communication.
• Factory and production-facility energy monitoring.
• Tenant and departmental energy allocation.
• Multi-tariff electricity monitoring.
• Import and export energy measurement.
• Distribution boards and switchgear assemblies.
• Energy efficiency and electrical consumption analysis.