Square D NF Panelboard Sub-Feed Breaker Kit, 600A, H-Frame

Square D NF Panelboard Sub-Feed Breaker Kit, 600A, H-Frame

The Square D NF Panelboard Sub-Feed Breaker Kit is a field-installable accessory designed for NQ and NF panelboards built on the H-Frame platform. Rated for 600A sub-feed applications, this kit lets contractors and OEMs add sub-feed breaker capability to modular NF panelboards without replacing the entire enclosure. The kit is cULus Listed and ships complete with the hardware needed for a proper factory-matched installation.

Key Features

• Amperage Rating: Engineered for 600A sub-feed breaker capacity on H-Frame NF panelboards.
• H-Frame Configuration: Matched to the H-Frame platform for correct fit and reliable electrical connection.
• Complete Hardware Set: Includes 1 screw set, 6 cables, 2 rail splices, 1 closing plate, 2 support brackets, 2 rail extensions, 1 mounting plate, 5 lugs, and 1 cover plate for a full installation.
• Modular Construction: NQ and NF panelboards accept field-installable accessories and conversion kits, making it easy to modify or extend panelboard use.
• Design Flexibility: Factory-assembled options maximize job productivity and allow design flexibility on the jobsite.
• Broad Accessory Selection: Part of Square D's wide selection of NQ and NF panelboard accessories and replacement parts.

Certifications & Compliance

• cULus Listed
• RoHS EU Compliant
• Mercury Free
• Toxic Heavy Metal Free

Technical Specifications

• Toxic Heavy Metal Free: Yes
• Mercury Free: Yes
• ROHS Eur In Scope: Yes
• Warranty: 18 months
• Warranty Period: 18 months
• Country of Origin: Mexico
• Market Segmentation: Commercial
• Recycled Metal Content At Cr Level: 0 %
• Sustainable Packaging: No
• Packaging Without Single Use Plastic: No
• Packaging Made With Recycled Cardboard: No
• WEEE Product Category: 5
• China ROHS In Scope: No

Typical Applications

• Commercial and Industrial Panelboard Installations
• Adding Sub-Feed Breaker Capacity to Existing NF Panelboards
• Panelboard Modification and Retrofit Projects
• New Construction Electrical Distribution
• Field Upgrades to H-Frame Panelboard Systems

Why Square D?

Square D by Schneider Electric engineers its NQ and NF panelboard accessories for modular, factory-matched compatibility, so kits like this 600A H-Frame sub-feed breaker kit install cleanly and perform reliably. With cULus Listing, Mercury Free and Toxic Heavy Metal Free construction, and an 18-month warranty, this kit gives contractors and OEMs a code-compliant way to extend panelboard functionality without a full replacement.