Fuse Tri-Onic® 250V 20A Time-Delay Class RK5 TR Series Smart-Spot

The Fuse Tri-Onic® 250V 20A Time-Delay Class RK5 TR Series Smart-Spot is designed for overcurrent protection in motor circuits, mains, feeders, branch circuits, transformers, and service entrance equipment. This time-delay fuse features current-limiting capabilities to safely handle starting and inrush currents typical of motors and transformers. It is suitable for use by electrical distributors and switchgear suppliers seeking reliable protection solutions for industrial and commercial electrical systems.

Specifications

• Amperage Rating: 20 A
• Voltage Rating: 250 V AC/DC
• Fuse Class: Class RK5
• Interrupt Rating: 200 kA
• Frequency: 50 hertz
• Dimensions: Length 2 in, Width 0.56 in, Height 0.56 in, Diameter 0.56 in
• Mounting Type: Clip
• Connection: Ferrule
• Insulation Material: PolyTube
• Product Weight: 0.0370 lbs
• Manufacturer: Mersen
• Manufacturer Part Number: TR20RID

Features

• Time-delay characteristic to handle harmless motor start-up and transformer inrush currents without nuisance opening
• Current-limiting design reduces peak let-thru current for enhanced circuit protection
• Optional SmartSpot® solid state blown fuse indicator for visual fault identification
• Rejection-style design prevents replacement errors when used with recommended fuse blocks
• Easy-to-read label with metal-embossed date and catalog number for traceability and identification
• Fiberglass body provides dimensional stability in harsh industrial environments
• High-grade silica filler ensures fast arc quenching and high current limitation

Downloads & Links

• Curves 2
• Spec Sheet
• Drawings
• Curves 1