HPS-JJ

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Fuseholders are protective devices designed to contain and control fuses used to reliably detect and protect electrical circuits from overload. High performance Separable Joint (HPS-JJ) Fuseholders provide superior performance in the toughest applications. They have the ability to capture and hold fuselinks securely while allowing the separable joint to disconnect and be reset if needed.

HPS-JJ Application Field and Working Principle

HPS-JJ Fuseholders are designed for application in a wide range of applications, including aircraft main, gen-bus, and accessory power circuits, power panels, and motor controllers. The rugged nature of these units make them suitable for demanding military and aerospace applications, where environmental and power quality restrictions are of greatest importance.

The working principle of an HPS-JJ Fuseholder adopts a pre-captured compression joint mechanism which uses internal compression force to secure the fuse link to the fuse holder rather than the traditional bayonet or threaded joint type of connection used for many other types of fuse holders. There are three basic types of pre-capture compression joints in the HPS-JJ Fuseholder series; the primary type uses a pair of blocks with teeth that engage to secure the fuse link; the secondary type uses an enlarged button type of structure that is aligned with the contacts and secured by compression force; and the tertiary type uses a pair of spring-biased contact fingers that capture the fuse link and hold it in position.

The main advantages of this type of design are robustness and long lifetime performance, as it eliminates any problems associated with loose, worn or misaligned connections. Additionally, the compression contact points provide extremely low contact resistance that ensures optimal performance and reduces the risk of any excess heat being generated.

The HPS-JJ Fuseholder also includes several additional features that ensure its reliable operation. For instance, a tamperproofing system prevents unauthorised opening of the device and a safety guard prevents accidental opening should a fault develop. The unit is designed to allow flexibility in both fuse link size and type, and includes ports for the addition of sensors or other electrical devices.

In addition to its advantages in terms of performance and robustness, HPS-JJ Fuseholder is also very cost effective compared to other fuses holders. Its design also allows for easy installation and maintenance, which significantly reduces installation and maintenance time and costs. All these features, combined with its competitive price, makes HPS-JJ Fuseholder a great choice for any application.

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