Abb TRK56A Class R Fuse Field Replacement

Product Description

The ABB TRK56A is a Class R fuse designed for field replacement in electrical distribution and motor control applications. Class R fuses are current-limiting protective devices that interrupt fault currents quickly, helping to protect downstream equipment from damage. This fuse is installed by licensed electricians and electrical contractors working on panel boards, disconnect switches, motor starters, and similar equipment where Class R-rated overcurrent protection is required.

Class R fuses are widely used in commercial and industrial electrical systems. The TRK56A is suited for field service scenarios where a technician is replacing a blown or degraded fuse during routine maintenance or fault remediation. This type of fuse fits standard Class R fuse holders and rejection-style disconnect switches that are common across commercial HVAC, industrial motor control, and general electrical distribution installations.

Key Features

• Class R current-limiting design for fast fault interruption
• Suitable for field replacement in disconnect switches and panel applications
• Compatible with Class R rejection-style fuse holders
• Provides overcurrent protection for motors, panels, and electrical distribution equipment

Compatibility

Designed as an OEM-style field replacement Class R fuse for use in standard Class R rejection-style fuse holders and disconnect switches commonly found in commercial and industrial electrical systems.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). Always de-energize and lock out the circuit before removing or installing a fuse. Verify that the replacement fuse matches the voltage rating, ampere rating, and Class designation of the original device. Never substitute a fuse of a different class or higher amperage rating than the circuit is designed for.

Technical Specifications

• Fuse Class: Class R
• UPC: 78316416103

Standard Information

• Brand: ABB
• Manufacturer Part Number: TRK56A