Why Choose the ABB A41 112-100 Energy Meter?
The ABB A41 112-100 is a compact and accurate single-phase direct-connected electricity meter designed for active energy measurement in industrial, commercial and building-services installations. As part of the ABB A41 EQ meter series, it combines direct measurement up to 80 A with a clear backlit digital display and integrated RS-485 communication.
Designed for direct connection to single-phase circuits, the A41 112-100 measures active electrical energy with Class B (Class 1) accuracy. Its Steel functionality level also provides useful electrical instrumentation values, while configurable alarm functionality and event logging support detailed monitoring of the connected electrical system.
The meter has a rated voltage range of 57.7–288 V AC and operates at 50/60 Hz. Integrated RS-485 communication using Modbus RTU or EQ Bus enables measured information to be collected remotely by compatible energy-management and building-management systems, while a configurable output can be used for energy pulses or alarm signalling.
Key Advantages
- Compact single-phase direct-connected energy meter for professional installations.
- Direct measurement up to 80 A without requiring an external current transformer.
- Class B (Class 1) active energy accuracy for dependable consumption monitoring.
- Integrated RS-485 communication supports remote data collection.
- Supports Modbus RTU and ABB EQ Bus communication.
- Instrumentation values provide additional visibility of electrical operating conditions.
- Configurable output can be used for energy pulses or alarm signalling.
- Up to 25 configurable alarm conditions support automated electrical monitoring.
- IEC approved and MID approved and verified for professional metering applications.
Key Features
- ABB A41 EQ meter series.
- Single-phase direct-connected electricity meter.
- 5 A rated current and 80 A maximum direct current.
- 57.7–288 V AC rated voltage range.
- 50/60 Hz rated frequency.
- Class B (Class 1) active energy accuracy.
- Active electrical energy measurement.
- Instrumentation values including active power, voltage, current and power factor.
- RS-485 serial communication.
- Modbus RTU and EQ Bus protocols.
- Infrared communication interface.
- One configurable digital output for energy pulses or alarm functions.
- Up to 25 configurable alarm conditions.
- Event logging functionality.
- Large backlit pixel-oriented digital display.
- Single-tariff energy measurement.
- Compact four-module DIN-rail construction.
Reliable Single-Phase Energy Monitoring
Direct-connected energy meters such as the ABB A41 112-100 allow electricity consumption to be measured without external current transformers on circuits within the meter's direct-current rating. Its 80 A maximum current capability makes it suitable for a broad range of single-phase loads, while Class B active-energy accuracy supports reliable consumption and sub-metering applications.
RS-485 communication allows the A41 112-100 to become part of a wider digital energy-monitoring system. Modbus RTU and EQ Bus connectivity can be used to retrieve meter information remotely, while instrumentation values, configurable alarms, event logging and the pulse/alarm output provide additional tools for monitoring electrical performance and energy consumption.
Typical Applications
- Commercial building energy monitoring.
- Single-phase electrical sub-metering.
- Industrial control and distribution panels.
- Building management systems using Modbus RTU.
- RS-485 energy-monitoring networks.
- Tenant and departmental electricity monitoring.
- Lighting and building-services circuits.
- Retail, office and public-building installations.
- Energy efficiency and electrical consumption analysis.
- DIN-rail distribution boards requiring direct energy measurement.
