X21904

Terminal Blocks - Accessories

X21904 Application Field and Working Principle

X21904 terminal block is a device used in the electrical connection of two pieces of equipment or components. It is ideal for commercial, industrial and home use and has an impressive list of application fields. As it can be used in a wide variety of connections, it is crucial to note the different parameters involved in choosing the right product and understanding its working principle.

In terms of application field, X21904 terminal block has high flexibility, as it is specifically designed for easy and secure connections. It is an ideal choice for both wire-to-wire and wire-to-ground connections, being most suitable for low voltage levels and temperatures, between -20°C and +60°C. Since it features a high current load capability, it is well-suited for a variety of applications, such as rolling mills, cranes, pumps, etc.

X21904 terminal block is made of UL94-V0 flame-retardant grey polycarbonate, with a later tinned copper that offers maximum electrical protection. According to the common European Security Standards, it includes a barrier system to reduce arcing and flash away from the terminals. Moreover, this type of terminal block allows the conductor to be inserted from the top with a satisfactory holding capacity. It has four slots for reliable hooking of the wire, an up and down motion to insert the wire and two positioning lugs for contact-holding.

In terms of its working principle, X21904 terminal block features an efficient, robust design for long life service assurance. By starting from a die-cast zinc body, it progressively compresses the connection plate upon the introduction of the conductor. This ensures excellent and consistent contact between the elements and consequently, a reliable high-quality connection.

Overall, X21904 terminal block is an ideal solution for connections in a wide variety of applications and working environments. It excels in particular because of its remarkable current carrying capacity and its ability to maintain a high-quality connection, whilst its secure mechanical clamping system ensures a reliable electrical contact.