ELFD44120

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Terminal Blocks - Headers, Plugs and Sockets are essential for both device-to-device and device-to-cable connections in a variety of industries. One widely used solution employed within this field is the ELFD44120 series originally developed by Harting. This range of devices is designed for a wide range of applications covering both commercial and industrial areas, offering reliable and secure electrical connectivity. This article will take a closer look at the ELFD44120 series focusing on its application field and working principle.

Features and Specifications

The ELFD44120 range is available in one of two types: the male version (NRSC) and the female version (NLIPS). Each is comprised of appropriate mating ends, enabling the connection of wires in a variety of configurations. Both versions are UL or cULis listed for global acceptance, and are securely locked for flush mounted applications with a snap-on design.

All models measure a total of 4.2mm in height and are available in two material options - PA66 or PA6 - offering a choice of mechanical or environmental protection. The supports and base are supplied in the natural color of gray while the contacts are typically black. The ELFD44120 range is rated for up to 6A at 250V, with a maximum of 2.5mm cable. It also features an operating temperature range of -40°C to 140°C, and a maximum of 750 mating cycles.

Application Field

The ELFD44120 device is primarily used for commercial applications such as breadboards and prototyping. However, it is also used for a range of industrial equipment and processes, including solar panels, communications systems, automation and smart meters. Due to its high reliability and secure electrical connections, the ELFD44120 series is ideal for mission critical applications.

The ELFD44120 series is suitable for equipment running in various enclosures, including control boxes, junction boxes and machine tool enclosures. It is also well-suited for outdoor applications due to its IP67 rating for harsh environments, and for logistic processes due to its versatile assembly options.

Working Principle

The ELFD44120 features a secure locking mechanism designed to ensure a secure electrical connection. The system makes use of an expanding gripper mechanism to ensure reliable contact force and electrical connection. As the male connection is inserted into the female, a locking pin expands the gripper within the female. This expands the rubber gripper along the stem and into the female, creating a seal which guarantees reliable electrical connection.

Once the connection is secure, it is easy to disconnect. To release the connection, simply push the release tab located on the side of the female. The gripper is then released and the male connection is free to be removed.

Conclusion

The ELFD44120 series is a reliable and secure solution designed for a wide range of applications. Available in two versions for both commercial and industrial applications, it is rated for up to 6A at 250V. It makes use of an expanding gripper mechanism to ensure a reliable electrical connection, with a secure locking mechanism for easy insertion and removal. With its IP67 rating for outdoor applications and versatile assembly options, the ELFD44120 offers a safe and secure connection for mission critical applications.

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