028502.5HXP

028502.5HXP Application Field and Working Principle

The 028502.5HXP fuses offer tremendous upgrades for the protection of mainly Littelfuse’s industrial, commercial and residential customers. These fuses are designed to provide high current limiting capability and strong discrimination among outgoing feeders, as well as fast response and unbeatable overcurrent protection for critical loads.

The fuse features the Bussmann Low-Peak element with current-limiting capabilities up to 45kA. The fuse also offers unparalleled performance in the rated current range of 10 to 200 amps. It is available in single-pole and 4-pole configurations, with both single- and dual-element designs.

The 028502.5HXP fuse’s application field covers industrial and commercial facilities, both indoor and outdoor. It can be used for the protection of all electrical circuits that require a secure and lasting overcurrent protection. Irrespective of the type of circuit, the fuse will be able to provide both short-circuit and overload protections.

In addition, the appliance provides long lasting protection for critical loads in hostile or dangerous environments. It can be used in occurrences where high short circuit currents are present, such as in utility substations, generating facilities, or power plants.

Working Principle

The 028502.5HXP’s basic working principle is simple yet effective. The fuse is a small cylindrical device made of specifically calibrated ceramic or metallic material. It has two conducting pins that run through its center, separating the fuse into two cavities.

When there is an overload or short-circuit situation, the current through the fuse element quickly rises. This rise in current causes the fuse element to heat up. As the fuse element reaches its melting point, it will open the circuit, thus providing secure overcurrent protection.

In a single-element design, the fuse will open the circuit and reset itself when the fault current is cleared. However, in a two-element or dual design, the fuse will remain open, until it is reset manually.

Conclusion

The 028502.5HXP fuses offer an array of exciting features for industrial, commercial and residential customers alike. Their 45kA current-limiting capability, short-circuit and overload protection, long lasting performance, as well as the two-element design are just a few highlights of this appliance.