Schneider Electric HRK1020 Class R Fuse Rejection Kit

Product Description

The SCHNEIDER ELECTRIC HRK1020 is a Class R fuse rejection kit designed for use with heavy duty safety switches. It provides a mechanical rejection feature that prevents the installation of non-Class R fuses, ensuring only the correct fuse type is used in the circuit. This kit is an OEM-style accessory that installs directly into compatible safety switch enclosures. Licensed electricians and electrical contractors install this component during new installations or service calls where fuse type enforcement is required by code or system design. The kit ships as a single unit and is UL and CSA listed, confirming it meets North American electrical safety standards.

This fuse rejection kit is intended for use in both residential and commercial electrical panel and safety switch applications. It is specifically engineered for Class 3110 safety switches in NEMA 1 and NEMA 3R enclosures. Typical installation scenarios include service entrance equipment, motor disconnect applications, and branch circuit protection setups where Class R fuse rejection is required. The kit is compatible with the following Square D heavy duty safety switch models: H323DS, H324A, H324AWK, H324DS, H324N, and H324NRB.

Key Features

• Class R fuse rejection design prevents incorrect fuse installation
• Compatible with NEMA 1 and NEMA 3R enclosure types
• UL and CSA listed for North American electrical installations
• RoHS compliant construction
• Sold as a single kit (quantity: 1 each)
• Country of origin: United States

Compatibility

Designed for use with Class 3110 NEMA 1 and NEMA 3R heavy duty safety switches, specifically models H323DS, H324A, H324AWK, H324DS, H324N, and H324NRB. Also referenced for use on QMB224W, QMB325W, and QMB263 panelboard branch switches.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the safety switch before beginning any work on the enclosure or fuse block. Verify the rejection kit is fully seated and secured before restoring power. Do not bypass or modify the rejection feature, as doing so defeats the purpose of Class R fuse type enforcement.

Technical Specifications

• Fuse Class: Class R
• Approvals: UL, CSA
• RoHS Compliant: Yes
• Enclosure Type Compatibility: NEMA 1, NEMA 3R
• Package Dimensions: 10.28 inches (L) x 6.93 inches (W) x 22.29 inches (H)
• Package Weight: 0.06 pounds
• Quantity: 1 each
• Country of Origin: United States
• GTIN: 00785901011088

Standard Information

• Brand: SCHNEIDER ELECTRIC
• Manufacturer Part Number: HRK1020