A trip unit is the part of a circuit breaker that opens the circuit in the event of a thermal overload, short circuit or ground fault. An open circuit will not conduct electricity because either air, or some other insulator has stopped or broken the flow of current in the loop.
What is a MicroLogic trip unit?
The Micrologic® trip units make adding functionality very easy. ... This family of trip units includes four models with varying levels of functionality: Micrologic 3.0 and 5.0 -- basic overcurrent protection including long-time, instantaneous and optional short-time adjustments for overloads and short circuits.
What is tripping system?
An automatic trip is an action performed by some system, usually a Safety Instrumented System, Programmable Logic Controller, or Distributed Control System, to put an industrial process into a safe state. It is triggered by some parameter going into a pre-determined unsafe state.