Disc-Type Bimetallic Devices
Disc-type bimetallic devices get their name from the shape of the bimetallic element that is utilized in these devices. The bimetallic element is generally round in shape and is then specially formed to give it a “disc” like shape. The size of the bimetal discs does vary depending on the construction styles of various manufacturers but disc-type devices generally come in ½" and ¼" disc styles. Since the bimetallic disc is usually electrically isolated from the electrical circuit, these devices are generally more suitable for applications where you need to interrupt resistive current loads of more than six amps.