Square D NF Sub-Feed Breaker Kit, L-Frame Panelboard Accessory

Square D NF Sub-Feed Breaker Kit, L-Frame Panelboard Accessory

The Square D NF Sub-Feed Breaker Kit is a field-installable panelboard accessory engineered for NQ and NF panelboards rated 400A-600A using an L-Frame configuration. Built for a short circuit withstand rating of 200 kA, this kit lets contractors and OEMs add sub-feed capability to an existing panelboard without replacing the enclosure, supporting on-site design changes and job-site flexibility. Country of origin is Mexico, and the kit ships complete and ready for installation.

Key Features

• Line Rated Current: Designed for 400-600 A NF panelboards, L-Frame configuration.
• Short Circuit Withstand: Rated 200 kA for demanding commercial electrical systems.
• Factory-Assembled Design: Factory assembled options allow design flexibility and maximize job productivity.
• Ready-to-Assemble Kit: Ready to assemble kits and accessories support on-site design changes.
• Field Modifiable: Easy to modify or extend the use of the panelboard.
• Complete Hardware Set: Includes phase-in, deadfront extension, phase insulator, deadfront cover, L-frame deadfront escutcheon, deadfront insulator, label set, and 19 screws.
• Wide Accessory Selection: NQ and NF offer a wide selection of accessories and replacement parts.

Certifications & Compliance

• RoHS EUR Compliant (In Scope)
• Mercury Free
• Toxic Heavy Metal Free
• Reach Free of SVHC Above Threshold

Technical Specifications

• Toxic Heavy Metal Free: Yes
• Take Back: No
• Tier: 2
• Returnability: Yes
• H And D Subrange: COM
• Sustainable Packaging: No
• Mercury Free: Yes
• Packaging Without Single Use Plastic: No
• Reach Free Shvc: Yes
• ROHS Eur In Scope: Yes
• Recycled Metal Content At Cr Level: 0 %
• Legacy WEEE Scope: In
• Packaging Made With Recycled Cardboard: No
• China ROHS Label: 1
• With Recycled Cardboard: No
• WEEE Product Category: 4
• Energy Efficiency Optimized: False
• Without Single Use Plastic: No
• Product Availability: Stock - Normally stocked in distribution facility
• ROHS Exemption Information: Yes
• Reach Free Of Svhc: Yes

Typical Applications

• Commercial Electrical Panelboard Upgrades
• Sub-Feed Breaker Installations on NQ/NF Panelboards
• Panelboard and Load Center Modifications
• Job-Site Design Changes and Renovation Projects
• Original Equipment Manufacturer Panel Assembly

Why Square D?

Square D NQ and NF panelboard accessories use modular, factory-assembled construction so contractors and OEMs can adapt panelboards on-site with confidence. With a 200 kA short circuit withstand rating and a complete field-installable hardware set, this sub-feed breaker kit supports reliable, code-compliant commercial electrical installations.