Spring-Loaded Terminal Block One of the common methods for wire connection is the “Spring-Loaded" terminal block. Most of these terminal blocks require the wire to be attached to a ferrule before it is inserted. The ferrule or wire is attached and released by inserting a spring release device. Some vendors have a unique spring release device while others require a small screwdriver. Watch the video and complete the following statement: A connection is made on a Spring-Loaded Terminal Block by” a