Application planning
4.3 Communication planning
3VA27 molded case circuit breakers & 3WL10 air circuit breakers
Manual, 10/2018, L1V30499596002-01
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Direct connection via two communication modules
Connection to the communication environment is established directly via modular, pluggable
communication modules in conjunction with the Breaker Connect module on the auxiliary
conductor terminal system.
①
Fixed-mounted breaker
②
Withdrawable breaker
Because the circuit breaker is designed for up to two communication modules, it can be
integrated into the communication environment with two different protocols. For example,
simultaneous connection of a fieldbus for automation or remote control applications (incl.
parameterization and remote switching) and Modbus TCP Ethernet communication link for
communicating measured values for efficient and safe power monitoring.
For the remote control switch of the 3VA27, you require the version of the stored energy
operating mechanism to be able to connect the device via the closing coil / shunt release
and Com Act when the spring is charged. The automatic spring charging motor is
recommended for this. (Info: Opening the circuit breaker is always possible when the spring
is not charged.)