Overview
The Shawmut TRS15 Tri-Onic time-delay fuse is a Class RK5 cartridge fuse designed for industrial overcurrent protection. Tri-Onic fuses are engineered for overcurrent protection of motors, transformers, service entrance equipment, feeders and branch-circuits, with time-delay characteristics that safely handle harmless starting currents and inrush currents. This lot includes two fuses rated at 15 amperes and 600VAC, making them ideal for single-phase or three-phase motor circuits, power distribution feeders, and branch-circuit protection.
Key Features
- Class RK5 Time-Delay Design: Engineered for overcurrent protection and safe handling of motor starting currents and inrush currents
- Dual-Element Construction: High-performance dual-element fuse for industrial motor and transformer protection
- 200kA Interrupt Rating: 200kA AC interrupt rating, providing fast-acting protection against short circuits
- Current Limiting: Current limiting low voltage fuse with rejection-style design to prevent replacement errors
- AC and DC Rated: AC and DC rated for diverse industrial applications
Technical Specifications
- Current Rating: 15 A
- Voltage Rating: 600 Vac, 300 Vdc
- Interrupt Rating: 200 kA
- Speed Class: Time Delay
- UL Classification: Class RK5
- Fuse Type: Cartridge Fuses
- Physical Dimensions: 0.81″ Dia x 5″ L (20.57x127mm)
- Weight: 3.2 oz per fuse
- Approvals: UL, CSA
- Certifications: UL 248-12 File E2137, UL 248 CSA C22.2 No. 248.4
Typical Applications
Ideal for Motor Circuits, Mains, Feeders, Branch Circuits, Transformers, Service Entrance Equipment, General-Purpose Equipment. The time-delay characteristic is particularly valuable in motor control circuits where inrush currents are common, ensuring the fuse will not nuisance-trip on harmless transient overloads while still protecting against true short circuits.
Compatibility & Replacements
Compatible With
- Motor control circuits up to 600VAC
- Three-phase and single-phase industrial distribution systems
- Transformer primary and secondary circuits
- Service entrance equipment and branch circuits
- Standard cartridge fuse blocks rated for Class RK5
Replaces / Drop-In Replacement For
- TRS15, TRS 15 Amp, TRS-15, TRS 15A, TRS15A, TRS-15A, TRS 15, TRS 15R, TRS-15R
- Previous-generation Ferraz Shawmut TRS series fuses of equivalent rating
Works With
- All UL Class RK5 fuse blocks and holders
- Motors rated 600V or less
- Transformers with 600VAC primary or secondary
- Power distribution panels and switchboards
- Industrial machinery control systems
