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.
