1-1546212-3

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Terminal Blocks - Headers, Plugs and Sockets

Terminal block connectors have been around for many decades and are used in a variety of industrial, commercial, and residential applications. 1-1546212-3 connectors are designed for use in wire-to-board (header & socket) connections. The connectors provide for a secure connection between a header and socket by means of a locking mechanism. The type of locking mechanism used depends on the application.

Application Field

1-1546212-3 connectors are used in applications where space is limited and a secure connection is necessary. Examples of application fields include: automotive, appliance, office equipment, telecommunications, instrumentation, and medical devices. Specialized connectors may be used in hazardous areas, such as those exposed to explosive or flammable gases and liquids.

Working Principle

The working principle of 1-1546212-3 connectors is based on the concept of electrical contact between a header and a socket. Electrical contact is ensured by two parallel contact plates with determined contact force. On each contact plate, several contact points are provided. The contact force is determined by spring pressure generated by a wavy spring accommodated inside the contact of the block. During the connection process, the spring pressure ensures a reliable contact between the two contact plates. The connection is secured with a locking mechanism that is usually operated by a locking screw or an alternate locking mechanism.

The electrical contact is then further secured by a cable clamp which presses the cable insulation against the plastic housing of the block. This cable fix is used to ensure that the contact remains stable and not essential for securing the electrical connection. Furthermore, the contact plates are embedded in a thermoplastic insulating housing to ensure IP20 degree of protection.

Conclusion

1-1546212-3 connectors are widely used in a variety of applications due to their space saving design and secure connection. The contact plates are held together by a spring force inside the contact which ensures a reliable electrical connection. The electrical connection is further secured by a cable clamp and a thermoplastic insulating housing.

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