Why Choose the ABB A42 113-100 Energy Meter?
The ABB A42 113-100 is an advanced single-phase transformer-connected DIN-rail energy meter designed for accurate active energy measurement in commercial, industrial and building energy-monitoring applications. Part of ABB's DIN Rail Mounted Meters range, it combines CT-connected measurement, a large backlit digital display and integrated M-Bus communication in a compact four-module format.
Designed for transformer-connected applications, the A42 113-100 has a 1 A nominal current, a maximum meter input current of 6 A and a wide 57.7–288 V AC phase-to-neutral voltage range. Its Class B MID / Class 1 active-energy accuracy makes it suitable for installations requiring dependable energy measurement through external current transformers.
Integrated M-Bus communication enables energy and instrumentation data to be accessed by compatible automatic meter-reading, building management and energy-monitoring systems. The meter also provides a configurable output for pulse or alarm functions, multiple instrumentation values, up to 25 possible alarms and event logging for comprehensive monitoring of electrical installations.
Key Advantages
- Single-phase CT-connected energy measurement for higher-current electrical installations.
- 1 A nominal current with a maximum meter input current of 6 A.
- Wide 57.7–288 V AC phase-to-neutral voltage range.
- Class B MID / Class 1 active-energy accuracy.
- Integrated M-Bus communication for remote meter reading and system integration.
- Configurable output for energy pulses or alarm functions.
- Multiple instrumentation values support detailed electrical monitoring.
- Up to 25 possible alarms and event logging.
- Large, easy-to-read backlit pixel-oriented display.
- Compact four-module DIN-rail construction for straightforward panel installation.
Key Features
- ABB A42 series energy meter.
- Single-phase transformer-connected measurement.
- 1 A nominal current.
- 6 A maximum meter input current.
- 57.7–288 V AC phase-to-neutral rated voltage range.
- 50–60 Hz rated frequency.
- Active energy measurement.
- Class B MID / Class 1 active-energy accuracy.
- M-Bus communication interface.
- One configurable output for pulse or alarm functions.
- Configurable pulse rate from 1–999999 imp/kWh.
- Multiple instrumentation values for electrical monitoring.
- Up to 25 possible alarms and event logging.
- Large backlit digital display.
- IP20 degree of protection.
- MID approved and verified and IEC approved.
Single-Phase CT Energy Monitoring with M-Bus
The ABB A42 113-100 uses external current transformers to provide accurate single-phase active energy measurement where direct-connected metering is unsuitable. Its transformer-connected architecture allows higher primary circuit currents to be monitored while the meter itself operates with a 1 A nominal current and accepts up to 6 A at its current input.
Integrated M-Bus communication enables energy and instrumentation data to be incorporated into compatible automatic meter-reading, building management and energy-monitoring systems. Combined with its configurable pulse or alarm output, instrumentation values, up to 25 alarm conditions and event logging, the A42 113-100 provides a flexible platform for both local and centralised energy monitoring.
Typical Applications
- Commercial building energy monitoring.
- Industrial single-phase energy metering.
- Distribution board and switchboard monitoring.
- CT-connected submetering applications.
- Building management systems using M-Bus communication.
- Centralised automatic meter-reading systems.
- Plant and equipment energy monitoring.
- Energy efficiency and consumption analysis.
- Tenant, departmental and cost-centre energy monitoring.
- Higher-current single-phase circuits requiring external current transformers.
