Abb TRK66A Class R Fuse Field Conversion Kit

Product Description

The ABB TRK66A is a Class R fuse field conversion kit designed to upgrade compatible safety switches for use with Class R fuses. This kit allows qualified electricians to convert an existing safety switch in the field without replacing the full enclosure. Class R fuses offer superior current-limiting performance compared to older fuse classes, making this conversion a practical upgrade for panels and disconnect applications in both residential and commercial electrical systems. The kit is intended for installation by licensed electricians familiar with disconnect switch service and NEC compliance requirements.

This conversion kit is suited for use in light commercial and industrial electrical installations where safety switches require retrofitting to accept Class R fuse configurations. Typical applications include service disconnects, branch circuit protection, and equipment shutoffs. The field conversion approach reduces downtime by allowing the upgrade to be completed on-site during scheduled maintenance or equipment changeover rather than requiring full switch replacement.

Key Features

• Enables field conversion of compatible safety switches to accept Class R fuses
• Class R fuse compatibility provides improved current-limiting protection
• Designed for on-site installation without full switch enclosure replacement
• Suitable for residential, light commercial, and industrial disconnect applications

Compatibility

Designed as an OEM-style field conversion kit for compatible ABB safety switch enclosures requiring Class R fuse capability. Refer to ABB product documentation to confirm fitment with the target switch model before ordering.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. Disconnect and lock out all power to the safety switch before beginning any conversion work. Follow the included ABB installation instructions for proper component placement and torque guidance. Do not energize the switch until the conversion is fully complete and the enclosure is properly closed and secured.

Technical Specifications

• Fuse Class: Class R
• Kit Type: Field Conversion Kit
• UPC: 783164180527

Standard Information

• Brand: ABB
• Manufacturer Part Number: TRK66A