What happens when I insert a complex plug assembly into a test block?
Each time a complex ITS Test Plug is inserted into a Test Block an automatic operating sequence takes place. First, the long pins of the plug make contact and are inserted first. These modules are the trip signals and are opened first to ensure that the relay doesn’t send out any false communications. Second, the shorter pins begin to make contact and the current circuits are safely shorted. Third, the test plug is fully inserted, all circuits have been safely opened and the relay is ready to receive secondary injections from the test set.
