Ferraz Shawmut Tri-Onic TR25R Class RK5 Fuse

The Ferraz Shawmut Tri-Onic TR25R is a high-performance fuse designed to protect electrical circuits from overload and short circuit conditions. Established by Ferraz Shawmut, now a part of Mersen, the TR25R fuse has become a staple in industrial settings, providing reliable protection for a range of electrical equipment. The TR25R fuse is rated for 25 Amperes and operates at a voltage of 250 Volts. It falls under the Class RK5 category, which specifies its ability to handle high-inrush currents while providing effective protection for both motor loads and general-purpose circuits. This class of fuses is known for its time-delay characteristics, allowing temporary overloads without disruption to the power supply. Designed with robust construction, the TR25R features a glass or ceramic body, ensuring durability and resistance to harsh environments. Its unique design offers excellent visibility for easy status checking, helping to ensure that maintenance personnel can quickly assess the operational status of the fuse. The TR25R is extensively used in manufacturing, HVAC systems, and commercial applications where circuit protection is critical. Its reliable performance and proven design make it an essential component for electrical safety and equipment longevity, prompting its use by engineers and electricians in various sectors across the globe.