Hammond HP22 Hole Plug 22mm

Product Description

The HAMMOND HP22 is a 22mm hole plug used to seal unused knockouts and openings in electrical enclosures, junction boxes, and panels. It provides a clean, secure closure that keeps debris, moisture, and pests out of the enclosure interior. Installers use this plug to cap off any pre-punched or field-cut 22mm holes that are not needed for conduit or cable entry. The snap-in design allows for fast, tool-free installation in standard sheet metal enclosures.

This hole plug is suited for residential and commercial electrical installations where unused enclosure openings must be closed off to meet code requirements. Typical applications include panelboards, pull boxes, junction boxes, and control enclosures. Electricians and electrical contractors install this plug during panel assembly or service work whenever a knockout is left unused.

Key Features

• Seals 22mm enclosure openings to block debris, moisture, and pests
• Tool-free snap-in installation for fast field use
• Lightweight at 0.6 pounds per package
• Compatible with standard sheet metal enclosure knockouts

Compatibility

Designed as an OEM-style replacement or supplemental plug for standard 22mm knockout openings in electrical enclosures and junction boxes.

Installation Notes

Installation is performed by licensed electricians or qualified electrical contractors. De-energize the enclosure and verify it is locked out before servicing any panel or junction box. Press the plug firmly into the 22mm opening until it seats securely. Verify the closure meets local code requirements under the NEC for unused enclosure openings.

Technical Specifications

• Hole Size: 22mm
• Weight: 0.6 pounds
• UPC: 62398041100

Standard Information

• Brand: HAMMOND
• Manufacturer Part Number: HP22