Overview
The Ferraz Shawmut TRS60R is a Tri-Onic® class RK5 current-limiting time-delay fuse rated for 60A at 600VAC / 300VDC. These fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits. The time-delay characteristics safely handle harmless starting currents and inrush currents associated with today’s motors and transformers. This lot includes three units, ideal for replacement sets or backup stock.
Key Features
- Dual-Element, Time-Delay Design: Current limiting with time-delay characteristics and rejection style design prevents replacement errors.
- High Interrupting Rating: 200 kA @ 600VAC / 20 kA @ 300VDC interrupting capacity.
- Ferrule Terminal: Reliable connection for use with standard fuse blocks and holders.
- Fiberglass Body: Durable construction rated UL 198L and UL 248-12.
- Non-Indicating Design: Rejection-style cartridge prevents incorrect part substitution.
Technical Specifications
- Current Rating: 60 Amperes
- Voltage Rating: 600VAC / 300VDC
- Fuse Class: RK5 (Motor circuit protection)
- Type: Dual-Element, Time-Delay, Current-Limiting
- Interrupting Rating (AC): 200,000 AIC @ 600VAC
- Interrupting Rating (DC): 20,000 AIC @ 300VDC
- Terminal Type: Ferrule Terminal
- Body Diameter: 1-1/16 inch (26.99 mm)
- Body Length: 5-1/2 inches (139.7 mm)
- Material: Fiberglass tube with pyrolytic filler
- Approvals: UL 198L, UL 248-12, CSA C22.2
- Series: TRS-R (Tri-Onic®)
Typical Applications
This fuse is ideal for motor circuits, mains, feeders, transformers, service entrance equipment, and general-purpose equipment. The RK5 class and time-delay characteristics make it particularly suitable for:
- Three-phase motor protection (up to 60A branch circuits)
- Transformer primary protection
- Feeder and main service circuits in industrial settings
- Equipment with normal inrush current demands
- Commercial and industrial panel replacements
Compatibility & Replacements
Compatible With
- Standard RK5 fuse blocks and holders rated for 600V
- Ferrule-style fuse clips and cartridge bases
- Motor control centers (MCCs) and distribution panels
- Industrial control systems and power distribution equipment
- NEMA-rated switchgear and enclosures
Replaces / Drop-In Replacement For
- Other Ferraz Shawmut TRS60R units
- Mersen TRS60R (Ferraz Shawmut and Mersen are now unified under Mersen ownership)
- Equivalent RK5 60A 600V time-delay fuses from competing manufacturers
- Verify compatibility with your system integrator or electrical engineer before ordering to ensure proper application.
Works With
- Motor Overload Relay Protection: Coordinates with thermal overload relays for dual-level protection
- Soft Starters and VFDs: Compatible with variable frequency drives requiring branch-circuit protection
- NEMA/IEC Industrial Standards: Meets North American electrical code requirements (NEC Article 430)
- Manual and Magnetic Motor Starters: Direct application in traditional motor control circuits
