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2CMA100183R1000 ABB B24 352-100 Three-Phase CT Energy Meter Class C RS-485 Modbus
ABB B24 352-100 is a DIN-rail mounted three-phase transformer-connected energy meter with Class C / Class 0.5 S active-energy accuracy, active and reactive import/export measurement, four-tariff capability, RS-485 Modbus RTU and EQ Bus communications and MID approval.
£369.69
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.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| MID Approval | Yes | |
| Current Input Rating (A) | 6 A | |
| Device Type | Energy meter | |
| Series | B24 | |
| ABB type designation | B24 352-100 | |
| ABB order code | 2CMA100183R1000 | |
| EAN / GTIN | 7392696001830 | |
| Product group | DIN Rail Mounted Meters | |
| Product type | Three-phase electricity / energy meter | |
| Functionality level | Silver | |
| Connection type | Transformer connected (CT) | |
| Number of phases | 3 | |
| Network configuration | 3-wire or 4-wire | |
| Nominal current | 1 A | |
| Maximum current | 6 A | |
| Rated phase-to-neutral voltage | 230–240 V AC | |
| Rated phase-to-phase voltage | 380–415 V AC | |
| Operating frequency | 50/60 Hz | |
| Active-energy accuracy | Class C / Class 0.5 S | |
| Reactive-energy accuracy | Class 2 | |
| Energy measurement | Active and reactive, import and export | |
| Tariffs | Up to 4 | |
| Inputs | 2 | |
| Outputs | 2 | |
| Input/output functions | Pulse, tariff control and alarm | |
| Alarm functions | Up to 25 | |
| Communication interface | RS-485 and infrared | |
| Communication protocols | Modbus RTU and ABB EQ Bus | |
| Display | Backlit digital display | |
| Protection rating | IP20 | |
| Operating temperature | -40 to +70 °C | |
| Dimensions (W × H × D) | 70 × 97 × 65 mm | |
| DIN-rail width | 4 modules | |
| Mounting type | DIN rail | |
| Net weight | approx. 0.27 kg | |
| Approval | IEC approved; MID approved and verified | |
| Standards | IEC 62052-11; IEC 62053-22; IEC 62053-23; EN 50470-1; EN 50470-3 |
Frequently Asked Questions
What is the ABB B24 352-100 used for?
The ABB B24 352-100 is a three-phase transformer-connected energy meter used for high-accuracy measurement of active and reactive energy in commercial, industrial and electrical distribution installations.
What accuracy does the ABB B24 352-100 provide?
The B24 352-100 provides Class C / Class 0.5 S active-energy accuracy and Class 2 reactive-energy accuracy, making it suitable for precision energy-monitoring and sub-metering applications.
Is the ABB B24 352-100 a CT-connected meter?
Yes. The B24 352-100 is a transformer-connected three-phase meter with a nominal current of 1 A and maximum meter current of 6 A, intended for indirect measurement using external current transformers.
What communication protocols does the ABB B24 352-100 support?
The B24 352-100 incorporates an RS-485 interface supporting Modbus RTU and ABB EQ Bus. It also includes an infrared communication interface.
Is the ABB B24 352-100 MID approved?
Yes. The ABB B24 352-100 is MID approved and verified and provides Class C active-energy accuracy for compliant high-accuracy metering applications.
Trusted High-Accuracy Energy Metering from ABB
ABB B24 DIN-rail electricity meters provide dependable transformer-connected three-phase energy measurement with comprehensive instrumentation and flexible system integration. The B24 352-100 combines Class C accuracy, active and reactive import/export measurement, multi-tariff functionality and RS-485 connectivity for professional energy-management and sub-metering applications.
