Mersen Tri-Onic TRS-R Class RK5 Time-Delay Fuse, 600VAC/600VDC

Mersen Tri-Onic TRS-R Class RK5 Time-Delay Fuse, 600VAC/600VDC

The Mersen Tri-Onic® TRS-R is a current-limiting, time-delay Class RK5 fuse engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders, and branch-circuits. This TRS-R family is offered across a Motor FLA range from 175A to 500A, allowing you to match the fuse to the specific full-load amperage of your motor or circuit application. Every fuse in the family shares a Blade connection/terminal type, a 600VAC/600VDC rating, and an AC max interrupting rating of 200 kA, so the TRS-R safely rides through the harmless starting and inrush currents typical of today's motors and transformers regardless of which amperage option you select. Each fuse includes the Mersen SmartSpot® visual indication system, making blown-fuse identification fast during troubleshooting.

Key Features

• Motor FLA Range: Available from 175A through 500A to match motor full-load amperage and circuit protection requirements.
• Time-Delay Characteristic: Safely handles harmless starting and inrush currents from motors and transformers without nuisance opening.
• Fuse Class: Class RK5 current-limiting design for reliable overcurrent protection.
• Connection/Terminal Type: Blade terminal with Tin-Plated Copper construction for a secure, low-resistance connection.
• Mounting: Clip mounting for standard fuse holder and disconnect compatibility.
• Indication System: SmartSpot® visual indication for quick identification of a blown fuse.
• AC Max I.R./Breaking Capacity: 200 kA interrupting rating for demanding fault-current environments.
• Rated Voltage: 600V AC / 600V DC, AC/DC rated for versatile system applications.
• Frequency: 50/60 Hz.
• Body/Insulating Material: PolyTube construction.

Certifications & Compliance

• RoHS Compliant
• UL-Rated Voltage: 600V AC / 600V DC

Technical Specifications

• Motor FLA Options: 175A, 500A
• Connection/Terminal Type: Blade
• Indication System Type: SmartSpot®
• Mounting: Clip
• Connection/Terminal Material: Tin-Plated Copper
• Indication System: Yes
• AC Max I.R./Breaking Capacity: I1: 200 kA
• ROHS Compliant: Yes
• Frequency (Hz): 50/60 Hz
• Speed/Characteristic: Time Delay
• Rated voltage AC UL: 600 V
• AC or DC: AC/DC
• Rated voltage DC UL: 600 V
• Fuse Class: Class RK5
• Body/Insulating Material: PolyTube

Typical Applications

• Motor Overcurrent Protection
• Transformer Protection
• Service Entrance Equipment
• Feeder Circuit Protection
• Branch-Circuit Protection

Why Mersen?

Mersen engineers the Tri-Onic TRS-R Class RK5 line with a Tin-Plated Copper Blade terminal, PolyTube insulating body, and a 200 kA AC interrupting rating to deliver dependable, code-compliant overcurrent protection across the full 175A to 500A Motor FLA range for demanding motor, transformer, and branch-circuit applications. The built-in SmartSpot® indication system speeds up field troubleshooting, and RoHS compliance supports environmentally responsible electrical installations.