Circuit Breaker Communication

Presentation

ComPact NSX circuit breakers with MicroLogic 5, 6, and 7 trip units can be integrated into a communication network using Modbus protocol. Use data transmitted by the communication network to provide supervision and monitoring for an installation.

Modbus communication offers the options of:

• Reading remotely:

  • The circuit breaker status

  • Measurements

  • Operating assistance information

• Controlling the circuit breaker remotely.

For more information about the Modbus communication network, refer to DOCA0091EN ComPact NSX - Modbus Communication Guide.

Remote Readout of the Circuit Breaker States

Remote readout of the circuit breaker status is accessible by all ComPact NSX circuit breakers equipped with a BSCM. The following data is available using the communication network:

• Open/closed position (OF)

• Trip indicator (SD)

• Electrical fault indicator (SDE)

For more information, refer to DOCA0140EN ComPact NSX - Circuit Breakers and Switch-Disconnectors 100–630 A - User Guide.

Remote Readout of the Measurements

Access the measurement readout with MicroLogic 5, 6, and 7 trip units.

For more information about measurements, refer to the metering function.

Remote Readout of the Operating Assistance Information

Access the operating assistance readout with MicroLogic 5, 6, and 7 trip units. The following operating assistance information is available:

• Protection settings

• Alarm settings

• History and tables of time-stamped events

• Maintenance indicators

Circuit Breaker Remote Control

The circuit breaker remote control is accessible by any circuit breaker with a MicroLogic trip unit, a BSCM, and a communicating motor mechanism. The following commands are available using the communication network:

• Circuit breaker opening

• Circuit breaker closing

• Circuit breaker reset

For more information, refer to DOCA0140EN ComPact NSX - Circuit Breakers and Switch-Disconnectors 100–630 A - User Guide.