Overview
The Gould Shawmut TRS3R is an industrial-grade cartridge fuse engineered for critical overcurrent protection. Rated at 3 amps and 600 volts AC, this dual-element time-delay fuse delivers Class RK5 current-limiting protection. The rejection-style design prevents accidental misinstallation, making it a reliable choice for motor circuits, control transformers, and distribution systems requiring dependable short-circuit coordination.
Key Features
- Dual-element time-delay design for reliable motor and transformer protection
- Class RK5 current-limiting fuse with 200,000 AIC interrupting rating at 600VAC
- Rejection-style construction prevents replacement errors and ensures safe installation
- Compatible with 600VAC and 600VDC applications
- Polyester body construction rated for reliable performance in industrial environments
Technical Specifications
- Part Number: TRS3R
- Current Rating: 3 Amps
- Voltage Rating AC: 600V
- Voltage Rating DC: 600V
- Fuse Class: RK5
- Type: Time Delay / Dual Element
- Interrupting Rating AC: 200,000 AIC @ 600VAC
- Interrupting Rating DC: 20,000 AIC @ 600VDC
- Physical Dimensions: 13/16″ diameter × 5″ length
- Body Type: Cartridge / Cylindrical
- Design Feature: Rejection Style
Typical Applications
The TRS3R fuse is ideal for motor circuit protection, service entrance equipment, distribution transformers, branch circuits, and general industrial electrical systems. Its time-delay characteristic makes it especially suited for circuits with inrush currents, providing nuisance-trip-free operation while maintaining fast response to genuine faults. Common installations include HVAC systems, pump motors, compressors, and industrial control panels.
Compatibility & Replacements
Compatible With
- Standard cartridge fuse blocks and holders with 13/16″ × 5″ cavity openings
- Motor control centers (MCCs) and distribution panels accepting Class RK5 fuses
- Transformers rated 600V primary or secondary windings
- Circuit protection systems requiring dual-element time-delay characteristics
- Both AC and DC electrical systems up to 600V
Replaces / Drop-In Replacement For
Verify exact compatibility with your original equipment specifications before ordering. The TRS3R uses standard rejection-style terminals and fits cartridge-type fuse blocks designed for Class RK5 dual-element fuses of matching physical dimensions.
Works With
- Ferraz Shawmut and Gould fuse blocks rated for Class RK5 fuses
- Standard electrical enclosures with cartridge fuse mounting
- Industrial control systems requiring Class RK5 current-limiting protection
- Motor starters and soft-start equipment with time-delay fuse compatibility
