ABB's intelligent universal frame circuit-breakers, EMAX, are high-performance and multifunctional devices that are widely used in low-voltage distribution systems, offering comprehensive protection and control functions. The following is a detailed description of the ABB EMAX circuit-breakers:

1.Model and Parameters

• Model MeaningThe model meaning of ABB EMAX2 series circuit breakers is shown as follows, including the circuit breaker trademark and model, Ekip protection trip unit, manual trip button, manual close button, manual spring energy storage operation handle, and electrical rated parameters, etc.1。
• Rated CurrentThe EMAX2 series circuit breakers have a maximum rated continuous current of up to 6300A, meeting the needs of modern electrical systems.1。
• Short-circuit Interrupting CapacityThe rated short-circuit interrupting capacity ranges from 42kA to 200kA, ensuring reliable protection under extreme conditions.1。

2.Characteristic Function

• Control function：
  • Electric Energy ManagementThe EMAX2 series's unique Ekip function allows for the monitoring of the electricity it manages, ensuring it stays below the user-set threshold. When the electrical system approaches the limit of energy consumption, it can automatically disconnect lower-priority electrical equipment, such as electric vehicle charging stations, lighting, or refrigerators. It will reconnect them when the value returns to an appropriate level.1。
  • Automatic Start-up of Auxiliary Power SupplyIt can automatically start the auxiliary power source, such as a generator set, set the load limit as needed, and control all lower-level circuit breakers by EMAX2 without the need for additional monitoring systems.1。
• Connectivity feature：
  • Communication ModuleThe EMAX2 series can be perfectly integrated with all automation and energy management systems, enhancing efficiency, reducing energy consumption, and implementing remote monitoring. It supports a variety of communication protocols, including Modbus, Profibus, Devicenet, ModbusTCP, Profinet, and EthernetIP.1。
  • IEC61850 standardComplies with IEC61850 standard, capable of connecting to the widely used automation systems in medium-voltage distribution field, and constructs an intelligentized grid.1。
• Performance：
  • Compact designAll models of protective relays, auxiliary circuit connections, and major accessories are the same, simplifying design and installation. The heights and depths of E2.2 to E6.2 are the same, facilitating standardized installation.1。
  • SecurityThe entire series of circuit breakers is divided into two types: fixed and pullout. There is double insulation between the front of the switch cabinet and the live parts, ensuring safe and reliable operation.1。

3.Technical parameters

• Rated Operating VoltageThe rated operating voltage can be 400V or 690V, depending on the model.1。
• Insulating VoltageUsually 800V or higher, to ensure safe operation in high voltage environments.1。
• Impulse withstanding voltageThe impact resistance voltage can reach 8kV or higher, depending on the specific model.1。

4.actual application

• Switchgear Isolation MonitoringThe main electrical parameters used to control circuit breakers, providing precise indications of the energy consumption by the system main circuit breakers and the output feed circuit breakers of various devices.1。
• Switchgear MonitoringDisplay all the data of the circuit breakers installed in the switch cabinet. These data can be read locally through the local operation panel or remotely through the internet.1。
• Electrical System MonitoringManage complex electrical systems, integrating all equipment into an automated industrial processing system or connecting to a smart grid.1。

5.Electrical Circuit and Wiring Diagram

• Wiring DiagramThe specific circuit and wiring diagram provide detailed connection methods to ensure correct installation and use.1。
• Shape and Size DiagramThe EMAX2 series circuit breaker provides a diagram of its appearance dimensions, which is convenient for design and installation.1。

Summary

ABB EMAX2 intelligent universal frame circuit breaker, with its advanced control functions, powerful communication capabilities, compact design, and outstanding safety performance, has become an ideal choice for modern low-voltage distribution systems. Whether it's energy management, remote monitoring, or the integration of complex electrical systems, EMAX2 can provide comprehensive solutions to ensure the efficient and reliable operation of the system.