Morris Products 21804, Steel Snap-In Blanks 1-1/2", Use to Close Off Unused Openings in Boxes and Panel Boards

Steel Snap-In Blank – 1-1/2" Knockout Closure (Morris 21804)

This 1-1/2" steel snap-in blank is designed to securely close unused 1-1/2" trade size knockout openings in metal electrical boxes, panelboards, and enclosures. The durable, all-steel construction with snap-fit retention clips makes installation fast and tool-free, giving your project a clean, professional finish while protecting the enclosure interior from dust and debris.

Key Features

• Purpose: Closes unused 1-1/2" trade size knockout openings in electrical boxes and panelboards
• Material: Heavy-duty steel construction for strength and lasting performance
• Design: Snap-in retention clips for secure, tool-free installation
• Finish: Metallic steel finish compatible with standard electrical enclosures
• Applications: Ideal for commercial, industrial, and residential electrical installations

Common Applications

• Junction boxes and outlet enclosures
• Panelboards and breaker cabinets
• Metal electrical cabinets
• Service, control, and equipment enclosures

Installation Overview

To install, align the blank with the unused 1-1/2" knockout opening and press firmly until the retention tabs snap into place. The snap-in design eliminates the need for additional hardware, making field installation quick and reliable.

Important Notes

• Trade Size Matching: Always match the blank to the knockout’s trade size (1-1/2") rather than the measured hole diameter.
• Steel Benefits: Steel snap-in blanks provide superior strength and durability compared with plastic options, making them ideal for demanding environments where a solid, professional finish counts.