Fuse Tri-Onic® 250V 10A Time-Delay Class RK5 TR Series Smart-Spot

The Fuse Tri-Onic® TR-R is a Class RK5 time-delay current-limiting fuse designed for overcurrent protection in motor circuits, mains, feeders, branch circuits, transformers, and service entrance equipment. This fuse is suitable for electrical distributors and switchgear suppliers seeking reliable protection solutions compatible with wire and cable systems. The time-delay feature allows safe handling of motor starting and transformer inrush currents without nuisance fuse opening, while current-limiting characteristics reduce peak let-thru current to protect downstream equipment.

Specifications

• Amperage Rating: 10 A
• Voltage Rating: 250 V AC/DC
• Interrupt Rating: 200 kA
• Class: Class RK5
• Frequency: 50 hertz
• Dimensions (L x W x H): 2 in x 0.56 in x 0.56 in
• Diameter: 0.56 inches
• Product Weight: 0.0370 lbs
• Connection: Ferrule
• Mounting Type: Clip
• Insulation Material: PolyTube

Features

• Time-delay for motor start-ups and transformer inrush currents without nuisance opening
• Current-limiting for low peak let-thru current
• Optional SmartSpot® solid-state blown fuse indicator for visual status
• Rejection-style design prevents replacement errors when used with recommended fuse blocks
• Easy-to-read label for quick brand recognition and replacement
• Metal-embossed date and catalog number for traceability and lasting identification
• Fiberglass body provides dimensional stability in harsh industrial settings
• High-grade silica filler ensures fast arc quenching and high current limitation

Downloads & Links

• Curves 2
• Spec Sheet
• Curves 1
• Drawings