with snap-in lock
MC-Plugs type S...AR-N are suitable for KBT...AR-N/... sockets with the corresponding nominal diameter. The S...AR-N plug has a threaded bolt and is suitable to screw into cable terminal lugs, busbars, contact blocks or as an instrument plug built into insulated housings. To lock, the plug is inserted into the socket until the snap-in lock engages. To release, the plug is lightly turned and pushed further in, then pulled out.