38720-0202

Barrier blocks are a type of terminal block that keep two different circuit elements separated. The barrier blocks are ideal for applications where a wire from one circuit needs to be connected to another circuit without crossing the electrical connection.

One common application for a barrier block is in a light switch, which controls a load from two corresponding circuits. By installing a barrier block in the light switch, one can ensure that each circuit is completely isolated from the other and there is no interference between the two circuits.

Barrier blocks are also used when wiring a radio or television. For example, in a TV, there are many wires that need to be connected from one circuit to another. By using a barrier block, all of the wires can be connected to the same point without any interference or crosstalk between circuits.

Model 38720-0202 is a barrier block from Radiall that is designed for rugged applications. The block has a rated current of 12 A, a voltage rating of 250 V, and a rated impulse withstand voltage of 4.5 kV. Its features include an IP67 protection rating, excellent surge protection, and 5.0 mm pitch spacing. The block has a M4.0 threading that allows for easy connection of wires.

When wiring barrier blocks, the wire must be inserted into the first terminal and then the wire is connected to the other terminals by using the screws. This way, each terminal is connected securely and without any crosstalk between the two wires. It is important to note that the electrical connection between the two circuits must not be held too tight to ensure that the connection will not be weakened due to straining.

Barrier blocks are an essential component for many types of electrical wiring applications. The Radiall 38720-0202 is a reliable and versatile barrier block that can be used in a wide variety of applications. With its excellent features like its IP67 rating and strong surge protection, the 38720-0202 is an ideal choice for any wiring project.