Southwire 154 Snap-in Blank Steel 1.5 Inch Ko Seal

Product Description

The SOUTHWIRE 154 is a steel snap-in blank designed to seal unused 1.5-inch knockout openings in electrical enclosures, panels, and junction boxes. This type of closure fitting keeps debris, pests, and moisture out of electrical boxes while maintaining a clean, code-compliant installation. The snap-in design allows for quick, tool-free installation without the need for threaded hardware. It is typically installed by licensed electricians during panel work, rough-in, or service calls where open knockouts need to be closed.

This snap-in blank is suited for residential and light commercial electrical work. Common applications include sealing open knockouts on load centers, distribution panels, metal junction boxes, and steel outlet boxes. The 1.5-inch size fits standard 1.5-inch knockout openings found across a wide range of enclosures and metallic boxes. Electricians keep these on hand as a standard consumable for any job involving panel or enclosure work.

Key Features

• Snap-in design allows tool-free installation into 1.5-inch knockout openings
• Steel construction provides durable, long-lasting closure
• Seals unused knockouts to keep debris, pests, and moisture out of enclosures
• Supports code-compliant closure of open knockouts per NEC requirements
• Compatible with standard steel electrical enclosures and junction boxes

Compatibility

Designed as an OEM-style snap-in blank for sealing 1.5-inch knockout openings in standard steel electrical enclosures, panels, and junction boxes.

Installation Notes

Installation is performed by a licensed electrician. Always de-energize the panel or enclosure and verify absence of voltage before working near open knockouts. The snap-in blank is pressed firmly into the knockout opening by hand until it seats securely. Refer to NEC Article 110 and applicable local codes for requirements governing closure of unused openings in electrical enclosures.

Technical Specifications

• Knockout Size: 1.5 inches
• Material: Steel
• Installation Type: Snap-In

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 154