T38018-25-0

Terminal Blocks - Barrier Blocks

T38018-25-0 is an example of a terminal block with a barrier system. Such terminal blocks are used to connect wires securely and provide additional protection from shorts (accidental connections) by arranging the incoming wires in two separate channels.

The benefit of the barrier block system, in comparison to a conventional Type 1 terminal block, is that it helps to reduce the incidence of circuit shorts. Each incoming wire is diverted into its own insulated channel in the terminal block. This prevents contacting of wires which could otherwise occur with conventional blocks. When all cables have been installed in the channels, a plastic or metal barrier is placed over the insulation and fastened with a screw. This effectively seals the terminal block off, making it more difficult for wires to make contact.

T38018-25-0 terminal blocks are usually available with varying numbers of channels, from 2 to 24. They are also available in different heights, from 10 to 50 mm, and with different types of connecting tabs, such as blades, studs or screws.

This type of terminal block can be used in a variety of applications, such as lighting, power and communications systems. They are well suited for electrical systems where there is a need for secure and high current connections, especially where the potential of shorts must be reduced.

Working Principle

The T38018-25-0 terminal block consists of two interconnected insulated channels so that one wire is diverted into each channel. A plastic or metal barrier is then used to seal off the two channels and prevent contact between the wires. The barrier is fastened using a screw.

Each channel is composed of multiple contact points. This allows the user to connect multiple wires simultaneously. The contact points have either threaded studs or screws (for blade-type connections) on which the wires are attached either with pressure or with a screw.

The contact points also provide an electrical connection between the channels. The connection is ensured by a conductor, which consists of a strip of flat or angled metal. This strip is sandwiched between the contact points of the two channels and runs along the length of the block.

The metal strip acts as a bridge between the two channels and provides a secure electrical connection when the wires are connected. The metal strip also acts as a stop for the screw when fastening the barrier.

T38018-25-0 terminal blocks are both reliable and efficient. The insulated channels help to protect against accidental electrical shorts while the metal strip provides an effective and secure connection. This makes them suitable for a range of applications including lighting, power and communications systems.