ABB B21 312-100 Energy Meter

The ABB B21 312-100 energy meter (reference 2CMA100155R1000) is an advanced tool designed for the precise monitoring of electrical consumption in single-phase installations. This device is part of ABB's System pro M Compact range, offering high-quality modular solutions for the control and protection of electrical installations in residential, commercial, and industrial sectors. This meter is ideal for those looking to improve energy efficiency and manage electricity consumption intelligently.

Main features of the ABB B21 312-100:

1. DIN rail mounting (DRA):
   This meter is easily installed on DIN rails, making it a practical and compact option for electrical panels. It is designed for environments where direct and precise monitoring of electrical energy consumption is needed, without the need for external transformers.

2. Direct and digital measurement:
   The ABB B21 312-100 is an energy meter directly connected to the electrical grid, capable of measuring both active and reactive power. Its digital display facilitates accurate data reading, featuring a 7-position digital display that clearly shows consumption and other essential electrical parameters.

3. Multi-tariff and external control:
   This meter supports the configuration of multiple tariffs, allowing efficient management of different periods of electrical consumption. Tariff control is performed externally, offering flexibility for integration into advanced energy management systems.

Technical specifications:

• Nominal voltage (Ur): 220-240 V, with an operating range between 176 and 276 V, ensuring stable performance even in environments with voltage fluctuations.
• Nominal current (In): 5 A, with a maximum capacity of up to 65 A, allowing the monitoring of consumption in both residential applications and small industries or businesses.
• Nominal frequency: Operates at both 50 Hz and 60 Hz, providing flexibility for use in a wide variety of electrical environments.
• Energy consumption: With a minimum consumption of 0.414 W, this meter is extremely efficient, ensuring that its use will not negatively affect the total consumption of the installation.
• Accuracy: The ABB B21 312-100 offers exceptional accuracy, with an accuracy class B for active energy measurement (±1%). This makes it a reliable tool for precise energy management in any installation.

Advanced communication and pulse output:

The ABB B21 312-100 is equipped with a Modbus RS485 communication interface, a widely used standard in control and monitoring systems. This feature allows the meter to be integrated into larger automation networks, facilitating real-time data collection and energy consumption analysis. Additionally, it features an S0 pulse output, making it a perfect tool for integration with other energy management systems.

• Pulse output frequency: Between 1 and 999999 pulses, allowing detailed control of consumed energy.
• Digital inputs and outputs (I/O): It has 2 digital inputs and 2 digital outputs, adding flexibility for advanced applications, such as integration with control systems or remote monitoring devices.

High-quality materials and safety:

The ABB B21 312-100 is made with durable materials such as glass-reinforced polycarbonate in the lower and upper housing, and transparent polycarbonate on the front cover, ensuring resistance to impacts and daily wear. Additionally, it has an IP20 protection rating, which protects it against the entry of solid objects larger than 12 mm, such as fingers or tools, ensuring user safety and device integrity in protected environments.

Advantages of the ABB B21 312-100 Energy Meter:

• High accuracy: With an accuracy class B (±1%), the device ensures exact measurements for effective energy consumption control, which is key to optimising energy use in residential and industrial installations.
• Versatility: Thanks to its multi-tariff capabilities and Modbus communication interface, this meter is ideal for integration into advanced energy management systems, allowing real-time monitoring and remote system adjustments.
• Easy installation and compatibility: Its design for DIN rail mounting allows easy integration into existing electrical panels without the need for major modifications. Additionally, the main circuit connection capability (1 ... 25 mm²) ensures compatibility with a wide variety of cables and electrical systems.

Additional information:

• Compliance standards: The meter complies with the IEC 62053-23 standard, ensuring measurement reliability and safety.
• Measurement instruments: Conformance with the Measurement Instrument Directive (MID), ensuring the device complies with European regulations for energy meters regarding accuracy and reliability.

This ABB B21 312-100 energy meter is an essential tool for professionals seeking efficient and precise solutions for controlling electrical consumption. With its robust design, advanced communication interface, and high accuracy, it is ideal for optimising energy efficiency in residential and industrial installations, ensuring complete control over energy consumption and management.