HAMMOND Hole Plug: Steel, 3 in Conduit Hole Size, For 3.62 in Hole Dia - Max, Steel
The HAMMOND Hole Plug: Steel (MPN HP300) is a steel electrical enclosure hole seal designed for conduit holes up to 3.62 inches in diameter. It features a gray powder-coated finish and includes an oil-resistant…
SKU 3G-OTH-07368
Need installation or engineering help?
Ask a question
Product Description
The HAMMOND Hole Plug: Steel (MPN HP300) is a steel electrical enclosure hole seal designed for conduit holes up to 3.62 inches in diameter. It features a gray powder-coated finish and includes an oil-resistant gasket, with a NEMA 3 enclosure rating.
Frequently Asked Questions
What is the HAMMOND HP300 hole plug used for?
The HAMMOND HP300 hole plug seals unused conduit openings in electrical enclosures, protecting against dust, rain, and sleet. It is rated NEMA 3 for outdoor use and includes an oil-resistant gasket for a weathertight seal. Common applications include industrial control panels, junction boxes, and outdoor electrical equipment.
What are the specifications of the HAMMOND HP300 hole plug?
The HAMMOND HP300 is a steel hole plug with a gray powder-coated finish. It fits conduit holes up to 3.62 inches in diameter and is rated NEMA 3. The plug includes an oil-resistant gasket and is designed for conduit hole types. The manufacturer part number is HP300.
Where to buy the HAMMOND HP300 hole plug worldwide?
3G Electric supplies the HAMMOND HP300 hole plug worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver this product to any country.
How to install the HAMMOND HP300 hole plug?
To install the HAMMOND HP300, first clean the conduit hole surface. Insert the plug into the hole until the gasket seats firmly against the enclosure. Tighten the retaining screw or nut (if applicable) to secure the plug. Ensure the gasket compresses evenly for a weathertight seal. No special tools are required.
Used in
Common applications for HAMMONDHAMMOND Products
3G Electric supplies HAMMOND electrical enclosure hole seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.














