Gould Shawmut TR20R Tri-Onic Fuse 20A Class RK5 Time Delay The Gould Shawmut TR20R Tri-Onic Fuse is a 20-amp, Class RK5 time-delay fuse designed to provide reliable overcurrent protection for various electrical applications. Its time-delay feature allows it to handle temporary inrush currents without unnecessary interruptions, making it ideal for motor circuits, transformers, and other equipment with high starting currents. Key Features Time-Delay Functionality: Safely manages motor start-ups and transformer inrush currents without nuisance openings. Current-Limiting Design: Reduces peak let-through current, enhancing system protection. Dual Voltage Rating: Suitable for systems operating at 250 VAC and 160 VDC. High Interrupting Capacity: Rated at 200,000 AIC for AC and 20,000 AIC for DC, ensuring robust performance under fault conditions. Rejection-Style Design: Prevents replacement errors when used with recommended fuse blocks. Durable Construction: Features a fiberglass body for dimensional stability in harsh industrial environments. Optional SmartSpot Indicator: Available with a solid-state blown fuse indicator for easy identification of fuse status. Applications The TR20R fuse is engineered for a wide range of applications, including: Motor circuits Mains Feeders Branch circuits Transformers Service entrance equipment General-purpose equipment Specifications Amperage: 20 A Voltage Rating: 250 VAC / 160 VDC Interrupting Rating: 200 kAIC (AC) / 20 kAIC (DC) Fuse Class: RK5 Mounting Type: Clip Connection Type: Ferrule Body Material: Fiberglass Dimensions: 2 inches in length; 0.56 inches in diameter Approvals and Standards UL Listed to Standard 248-12, File E2137 CSA Certified to Standard C22.2 No. 248.12 DC Listed to UL Standard 248 (TRS only) The Gould Shawmut TR20R Tri-Onic Fuse combines advanced material technology with proven time-delay characteristics, offering dependable protection for motors, transformers, and various electrical circuits. Its design ensures safe handling of inrush currents and provides high current limitation, making it a reliable choice for industrial and commercial applications.