2CMA100013R1000 ABB A44211100CT A44 211-100 CT Connected Three-Phase Energy Meter

Why Choose the ABB A44211100CT A44 Three-Phase Energy Meter?

The ABB A44211100CT, manufacturer type A44 211-100, is an advanced three-phase transformer-connected electricity meter designed for accurate energy monitoring in industrial, commercial and electrical distribution applications. Part of ABB's A44 DIN-rail mounted meter range, it provides measurement of active and reactive energy together with key electrical instrumentation values through a clear backlit digital display.

Designed for CT/VT-connected three-phase systems, the A44 211-100 can be used in both 3-wire and 4-wire networks. It supports a wide voltage range of 3 × 57.7/100–288/500 V AC and transformer-connected current measurement, making it suitable for monitoring loads beyond the practical range of direct-connected electricity meters.

The meter records active and reactive energy in both import and export directions and provides a configurable output for pulse or alarm functions. It also features an infrared communication port, event logging and multiple instrumentation values, while its IEC and MID approvals make it suitable for professional energy-management and sub-metering applications.

Key Advantages

• Advanced three-phase CT/VT-connected electricity metering.
• Measures active and reactive energy in both import and export directions.
• Suitable for 3-wire and 4-wire three-phase systems.
• Wide 3 × 57.7/100–288/500 V AC measurement range.
• Transformer-connected design supports energy monitoring of higher-current installations.
• Class B / Class 1 active-energy accuracy for dependable energy measurement.
• Configurable pulse or alarm output for integration with monitoring systems.
• Integrated infrared communication port.
• Large backlit pixel-oriented display provides clear local readings.
• MID approved and verified for compliant metering applications.

Key Features

• ABB A44 series three-phase energy meter.
• A44 211-100 Bronze functionality level.
• Transformer-connected CT/VT measurement.
• Supports 3-phase, 3-wire and 4-wire systems.
• Active energy import and export measurement.
• Reactive energy import and export measurement.
• Measurement of key electrical instrumentation values.
• 25 possible alarm functions and event logging.
• One digital output configurable for pulse or alarm functions.
• Infrared communication port.
• Large backlit digital display for easy local monitoring.
• 50/60 Hz operating frequency.
• IP20 degree of protection.
• DIN-rail mounting for straightforward panel integration.
• IEC approved and MID approved and verified.

Advanced Three-Phase Transformer-Connected Energy Metering

Transformer-connected electricity meters allow energy consumption to be measured in installations where the load current is too high for direct connection to the meter. The ABB A44 211-100 uses external current transformers, and where required voltage transformers, to provide accurate three-phase energy measurement while keeping the meter isolated from the full load current.

The A44 211-100 goes beyond basic kWh measurement by recording active and reactive energy in both import and export directions and providing access to important electrical instrumentation values. Its alarm capability, event logging, pulse output and infrared interface make it suitable for energy monitoring, sub-metering, load analysis and integration into broader energy-management systems.

Typical Applications

• Industrial three-phase energy monitoring.
• Commercial building electricity metering.
• Electrical distribution boards and switchboards.
• CT-connected high-current electrical installations.
• Three-phase 3-wire and 4-wire networks.
• Active and reactive energy monitoring.
• Import and export energy measurement.
• Energy-management and sub-metering systems.
• Plant, machinery and production-line energy monitoring.
• MID-compliant electricity metering applications.