Push-fit terminal block The “Push-fit” or “Push-in” terminal block is becoming very popular. Much like the “Spring-Loaded” terminal block, the “Push-fit” often requires the wire to be covered by a ferrule. Several vendors make “Push-fit” terminal blocks. A connection is made by simply inserting the wires. Watch the video and complete the following statement: The difference between a push-fit and a spring-loaded terminal block is: a) the push-fit does not have a spring release b) the method of w