Overview
The Shawmut TR200 is a Class RK5 time-delay fuse from the Tri-Onic TR-R series, designed for reliable overcurrent protection. With a 200-ampere rating at 250VAC and a 200-kiloampere interrupt rating, the Shawmut TR200 is engineered to protect motors, transformers, service entrance equipment, feeders, and branch circuits. The time-delay design accommodates harmless inrush currents and starting surges without nuisance trips.
Key Features
- Time-delay design handles motor starting and transformer inrush without false operation
- Class RK5 rejection-style blade design for use with compatible rejection fuse blocks
- 200 kA interrupt rating at 250VAC / 20 kA at 250VDC
- Dual-element construction for selective overcurrent protection
- UL and CSA certifications ensure safety and reliability
- Blade body style with polyester housing, 7-1/8″ L × 1-9/16″ diameter
Technical Specifications
The Shawmut TR200 meets industrial standards and is suitable for 250VAC and 250VDC applications:
- Current Rating: 200 amperes
- Voltage Rating: 250VAC / 250VDC
- Interrupt Rating: 200 kA at 250VAC, 20 kA at 250VDC
- Fuse Class: RK5
- Speed: Time Delay (thermal-magnetic response)
- Series: TR-R (Tri-Onic)
- Dimensions: 7-1/8″ length × 1-9/16″ diameter
- Weight: 14.4 oz (410 grams)
- Body Material: Polyester
- Element Type: Dual
- Approval Standards: UL, CSA, RoHS compliant
Typical Applications
The TR200 is commonly deployed in:
- Motor branch circuits and feeder protection
- Transformer primary and secondary protection
- Industrial control panels and electrical distribution
- Equipment service entrances and main feeders
- Machinery startup protection where inrush tolerance is required
Compatibility & Replacements
Compatible With
- Standard Class RK5 rejection-style fuse blocks (2HKRFB series)
- Industrial electrical panels rated for 250VAC service
- Motor control centers and distribution equipment
Replaces / Drop-In Replacement For
- Bussmann FRN-R 200A fuse
- Littelfuse FLNR 200A fuse
- Edison ECNR 200A fuse
- Other TR-R series equivalents
Works With
- Class RK5 rejection fuse blocks and holders
- Dual-element fuse clips and cartridge holders rated for blade-style fuses
- Industrial overcurrent protection systems using time-delay fuses
