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2CMA100249R1000 ABB A44 113-100 Three-Phase CT/VT-Connected Energy Meter with M-Bus
ABB A44 113-100 is a three-phase CT/VT-connected DIN-rail active energy meter with Class B accuracy, measurement current up to 6 A, configurable transformer ratios and integrated M-Bus communication.
£332.63
Why Choose the ABB A44 113-100 Energy Meter?
The ABB A44 113-100 is an advanced three-phase CT/VT-connected electricity meter designed for accurate active energy measurement in industrial, commercial and building-services installations. As part of the ABB A44 energy meter series, it is intended for indirect measurement of three-phase networks where external current and, where required, voltage transformers are used.
The A44 113-100 supports both 3-wire and 4-wire three-phase systems and provides configurable transformer ratios for current and voltage. It measures active energy to Class B (Class 1) accuracy and accepts measurement current up to 6 A, making it suitable for transformer-connected metering of higher-current electrical distribution systems.
Integrated M-Bus communication enables remote meter reading and connection to compatible building and energy-management systems. The meter also provides a configurable output for active-energy pulses or alarm signalling, up to 25 configurable alarm conditions, an infrared interface and a large backlit display showing energy and key electrical instrumentation values.
Key Advantages
- Advanced three-phase CT/VT-connected energy meter for indirect measurement.
- Suitable for 3-wire and 4-wire three-phase networks.
- Class B (Class 1) active energy accuracy for dependable energy monitoring.
- Measurement current up to 6 A for transformer-connected applications.
- Wide 3 × 57.7/100–288/500 V AC measurement voltage range.
- Integrated M-Bus communication for remote meter reading and energy-management integration.
- Configurable transformer ratios support a wide range of CT/VT installations.
- Configurable output provides active-energy pulse or alarm functionality.
- Up to 25 configurable alarm conditions support detailed electrical monitoring.
- IEC approved and MID approved and verified for professional metering applications.
Key Features
- ABB A44 energy meter series.
- Three-phase transformer-connected electricity meter.
- CT/VT connection with configurable current and voltage transformer ratios.
- Maximum measurement current: 6 A.
- 3 × 57.7/100–288/500 V AC voltage range.
- 50–60 Hz operating frequency.
- Class B (Class 1) active energy accuracy.
- Active energy measurement.
- Instrumentation values for power, current, voltage, frequency and power factor.
- Per-phase and total electrical measurements.
- Integrated M-Bus communication.
- Infrared communication interface.
- One configurable output for active-energy pulses or alarms.
- Up to 25 configurable alarm conditions with threshold monitoring.
- Backlit digital display with up to seven digits.
- Event logging functionality.
- Compact seven-module DIN-rail construction.
Reliable Transformer-Connected Energy Monitoring
Transformer-connected energy meters such as the ABB A44 113-100 allow higher-current three-phase electrical systems to be monitored without routing the full load current through the meter. External current transformers provide a reduced measurement signal, while configurable current and voltage transformer ratios enable the meter to calculate energy consumption for the primary electrical circuit.
Beyond accumulated active energy, the A44 113-100 provides instrumentation values including power, current, line-to-line and line-to-neutral voltage, frequency and power factor, both per phase and as total values. M-Bus communication, configurable alarms and pulse functionality allow this information to be incorporated into wider building-management, energy-management and industrial monitoring systems.
Typical Applications
- Industrial three-phase energy monitoring.
- Commercial building electricity metering.
- CT/VT-connected electrical sub-metering.
- Higher-current distribution boards and switchgear.
- Building management systems using M-Bus communication.
- Factory and production-facility energy monitoring.
- Tenant and departmental electricity consumption monitoring.
- Electrical instrumentation and alarm monitoring.
- Energy efficiency and consumption analysis.
- Three-phase 3-wire and 4-wire distribution systems.
Technical Specifications
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| Measurement Connection Type | CT connection | |
|---|---|---|
| MID Approval | Yes | |
| Device Type | Energy meter | |
| Series | A44 Energy Meters | |
| ABB order code | 2CMA100249R1000 | |
| Product type | Three-phase electricity / energy meter | |
| Connection type | CT/VT transformer connected | |
| Number of phases | 3 | |
| Network configuration | 3-wire / 4-wire | |
| Nominal current | 1 A | |
| Maximum measurement current | 6 A | |
| Phase-to-neutral voltage | 57.7–288 V AC | |
| Phase-to-phase voltage | 100–500 V AC | |
| System voltage range | 3 × 57.7/100–288/500 V AC | |
| Frequency | 50–60 Hz | |
| Measured energy | Active energy | |
| Active energy accuracy | Class B (Class 1) | |
| Communication | M-Bus | |
| Additional interface | Infrared | |
| Output | 1 configurable pulse / alarm output | |
| Alarm capability | Up to 25 configurable alarms | |
| Display | Backlit digital display, up to 7 digits | |
| Tariff | Single tariff | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Module width | 7 DIN modules | |
| Dimensions (W × H × D) | 123 × 97 × 65 mm | |
| Weight | approx. 0.35 kg | |
| Standards | IEC 62052-11, IEC 62053-21, EN 50470-1, EN 50470-3 | |
| Approvals | IEC approved, MID approved and verified |
Frequently Asked Questions
What is the ABB A44 113-100 used for?
The ABB A44 113-100 is used for three-phase transformer-connected active energy measurement in commercial and industrial electrical systems, including 3-wire and 4-wire networks.
What measurement current does the ABB A44 113-100 support?
The A44 113-100 has a nominal measurement current of 1 A and supports measurement current up to 6 A through its transformer-connected inputs.
What is the accuracy of the ABB A44 113-100?
The meter measures active electrical energy to Class B (Class 1) accuracy and is IEC approved as well as MID approved and verified.
Does the ABB A44 113-100 support M-Bus communication?
Yes. The A44 113-100 includes an integrated M-Bus interface for remote meter reading and integration with compatible building and energy-management systems.
What electrical values can the A44 113-100 display?
The meter can display active energy, power, current, line-to-line and line-to-neutral voltage, frequency and power factor, with relevant instrumentation values available per phase and as total values.
Trusted Energy Measurement from ABB
ABB A44 energy meters provide accurate transformer-connected three-phase measurement with extensive instrumentation and communication functionality, supporting dependable energy monitoring across commercial buildings, industrial facilities and electrical distribution systems.
