Overview
The Gould Shawmut TRS5R is a dual-element time delay current limiting fuse built for demanding industrial applications. Part of the Shawmut Tri-Onic product line, this Class RK5 rated fuse delivers coordinated protection in motor control circuits, power distribution systems, and equipment requiring selective coordination with other protective devices.
Key Features
- Time delay (dual-element) design minimizes nuisance trips on motor inrush current
- Class RK5 current limiting capability reduces fault let-through energy
- 200,000 amperes (200kA) interrupting rating at 600VAC
- 600VAC and 300VDC rated for flexibility across AC/DC installations
- Ferrule-style cartridge for secure fit in standard fuse blocks and holders
Technical Specifications
- Current Rating: 5 Amperes
- Voltage: 600VAC / 300VDC
- Fuse Class: RK5 (Time Delay, Current Limiting)
- Interrupting Rating: 200,000A @ 600VAC
- Series: Tri-Onic TRS
- Body Style: Ferrule Cartridge
- Certification: UL Listed, CSA Certified
Typical Applications
The TRS5R excels in:
- Motor starter and VFD feeder protection
- Power distribution panel main and branch circuits
- Industrial control circuits requiring time delay coordination
- Equipment with inductive loads subject to transient startup surges
- OEM machinery and panel builders requiring Class RK5 performance
Compatibility & Replacements
Compatible With
- Standard industrial fuse blocks and clips (ferrule-style)
- Motor control centers (MCC) with RK5-rated fuse holders
- Power distribution systems rated 600VAC/300VDC
- Equipment designed for Class RK5 coordination
- Motor starters and soft starters requiring current limiting fuses
Replaces / Drop-In Replacement For
The TRS5R is a direct replacement for OEM Gould Shawmut and Ferraz Shawmut fuses specifying the same part number and ratings. For alternative equivalents, verify compatibility with your system integrator or OEM documentation before ordering, as fuse interchangeability depends on exact class, voltage, and interrupting rating match.
Works With
- Industrial fuse carrier and block systems (all major brands)
- Power monitoring and circuit analysis equipment
- Electrical distribution architectures using Class RK5 coordination
- Systems designed to IEC, UL, and CSA standards



