Orbit Industries KO3P-400 3-piece Knockout Seal 4 in

Product Description

The ORBIT INDUSTRIES KO3P-400 is a 3-piece knockout seal designed for use in electrical enclosures, panels, and junction boxes where a 4-inch trade size knockout opening must be closed and sealed. This fitting consists of three components that work together to create a secure, code-compliant closure over unused knockout openings. It is typically installed by licensed electricians during panel work, conduit rough-in, or enclosure modifications where open knockouts must be filled to maintain wiring enclosure integrity.

The KO3P-400 is suited for residential and light commercial electrical installations where 4-inch trade size knockouts are present in metallic or compatible enclosures. Common applications include load centers, pull boxes, junction boxes, and other electrical enclosures that require unused knockout closures per NEC requirements. The 3-piece design allows for straightforward installation without special tooling in most field conditions.

Key Features

• 3-piece construction for secure closure of unused knockout openings
• 4-inch trade size fits standard 4-inch knockout openings
• Designed to maintain enclosure integrity at unused knockout locations
• Suitable for use in panels, junction boxes, and electrical enclosures

Compatibility

Designed as an OEM-style replacement and standard-fit knockout seal for electrical enclosures with 4-inch trade size knockout openings.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the panel or enclosure before beginning any work on or inside electrical boxes. Ensure the knockout opening is clean and free of burrs before seating the seal components. Verify the installed seal is secure and flush to maintain proper enclosure protection ratings.

Technical Specifications

• Trade Size: 4 inches
• Piece Count: 3-piece assembly
• UPC: 835243049338

Standard Information

• Brand: ORBIT INDUSTRIES
• Manufacturer Part Number: KO3P-400