Circuit Breaker Communication

Typically the breaker would trigger a switch device that activates or deactivates an input on what ever I/O component of the system you chose to use in your overall monitoring system.

As mentioned before, circuit breakers need not to have a 'standard' protocol for communication particularly in the event that it will trip a particular zone / area in a protection system.

Circuit breakers has what they've called 'Trip Circuits' these trip circuits are basically made up of magnetic coil and other contacts (normally open or normally close) what needs to be understand or the goal is to complete these Trip Circuits as to energize the magnetic coil of the breaker therefore changing the state of its corresponding contacts. Usually there are two contacts in a trip circuit (@De-energized state) a normally close contact (52b) and a normally open contact (52a) upon energization of the breaker these contacts will now change their state 52a now being the close one and 52b now being the open. the 52a is wired in series with the trip coil of the breaker plus the contact that will come from the relay (normally open) now since the trip coil is in series with the 52a and the normally open contact coming from the relay in the event that a fault will occur that normally open contact from the relay (assertion of the relay contacts depends on the logic setup or trip equation) will changed its state to close therefore completing the circuit and by means of mechanical action the breaker will now once again change the 52a and 52b state back to their initial position 52a being the open and 52b being the close one. These changing of state of the contacts of the breaker will trigger a mechanical action internally in the breaker that will now open the line or isolate the area or zone of protection.

R.I.P. English.

Information is transmitted in electromagnetic communications using protocols, and the devices are called transmitter and receiver.

MCCB can trip due to electromechanical trip (electromagnetic fields) or just mechanical (thermal). There is no communication protocol involved here.

It depends upon the communication protocol that Manufacturer provide with your system or equipment. Then you may need gateways to convert into your receiving system

Perhaps it would be appropriate to list those questions in a posting and await responses, then?