2CMA100168R1000 ABB B23 311-100 65A Three-Phase Direct-Connected Pulse Energy Meter

Why Choose the ABB B23 311-100 Three-Phase Energy Meter?

The ABB B23 311-100 is an advanced three-phase direct-connected electricity meter designed for accurate energy monitoring in commercial, residential and light-industrial electrical installations. Part of ABB's B23 DIN-rail mounted meter range, it supports direct connection of loads up to 65 A, eliminating the need for external current transformers in suitable applications.

Designed for 3-wire and 4-wire three-phase networks, the B23 311-100 measures both active and reactive energy in import and export directions. Its Silver functionality level also provides up to four tariffs, instrumentation values, event logging and configurable alarm functions, making it suitable for detailed energy monitoring and sub-metering.

The meter incorporates two inputs and two outputs for pulse, tariff-control and alarm functions together with an infrared communication interface. With Class B active-energy accuracy, MID approval and verification, a clear backlit display and compact 4-module DIN-rail format, the B23 311-100 provides a versatile metering solution for professional energy-management applications.

Key Advantages

• Direct-connected three-phase metering up to 65 A without external current transformers.
• Measures active and reactive energy in both import and export directions.
• Suitable for 3-wire and 4-wire three-phase networks.
• Class B / Class 1 active-energy accuracy for dependable electricity measurement.
• Class 2 reactive-energy accuracy.
• Supports up to four tariffs for detailed consumption allocation.
• Two inputs and two outputs support pulse, tariff-control and alarm functions.
• Provides instrumentation values, 25 possible alarms and event logging.
• Integrated infrared communication interface supports compatible accessories.
• MID approved and verified for compliant metering applications.

Key Features

• ABB B23 series three-phase energy meter.
• Silver functionality level.
• Direct-connected measurement up to 65 A.
• Suitable for 3-phase 3-wire and 4-wire systems.
• 220–240 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.
• Resettable intermediate energy register.
• Support for up to four tariffs.
• Two pulse/alarm outputs and two inputs.
• Multiple electrical instrumentation values.
• Up to 25 configurable alarm functions and event logs.
• Integrated infrared communication port.
• Easy-to-read backlit digital display.
• Compact 4 DIN-module construction.
• IP20 degree of protection.

Advanced Direct-Connected Three-Phase Energy Metering

The ABB B23 311-100 provides direct-connected energy measurement for three-phase loads up to 65 A, allowing suitable installations to be metered without external current transformers. It records active and reactive energy in both import and export directions while also providing electrical instrumentation values for detailed monitoring of the connected network.

Its Silver functionality extends beyond basic energy measurement with up to four tariffs, two inputs, two outputs, configurable alarm functions and event logging. The outputs can be used for energy pulses or alarms, while the inputs can support tariff control or external pulse counting, making the B23 311-100 a flexible choice for sub-metering, energy management and consumption-monitoring systems.

Typical Applications

• Commercial building energy monitoring.
• Residential three-phase electricity metering.
• Light-industrial electrical installations.
• Three-phase distribution boards and switchboards.
• Direct-connected loads up to 65 A.
• 3-wire and 4-wire three-phase networks.
• Active and reactive import/export energy monitoring.
• Multi-tariff electricity metering.
• Energy-management and sub-metering systems.
• MID-compliant metering applications.