Overview
The Hubbell Wiegmann WAS050 is an oil-tight hole seal designed to protect electrical enclosures from contamination. These gasketed seals fit 1/2-inch conduit holes, knockout openings, and pushbutton holes, making them essential for maintaining enclosure integrity in industrial, commercial, and harsh environments. The product comes in a box of 10 units for cost-effective bulk purchasing.
Key Features
- Gasketed design with oil-resistant gasket for reliable seal against dust, dirt, oil, and water
- Quick wing nut fastener enables fast, tool-free installation
- Carbon steel body with ANSI 61 gray polyester powder coat finish for durability
- Maintains UL rating of the enclosure when like materials are used
- Fits 0.88-inch diameter holes for 1/2-inch conduit applications
- cULus recognized component; meets NEMA 1, 4, 4X, 12, and 13 standards
Technical Specifications
| Part Number | WAS050 |
| Hole Size | 0.88 inch diameter |
| Conduit Size | 1/2 inch |
| Material | Carbon Steel |
| Finish | ANSI 61 Gray Polyester Powder Coated |
| Gasket Type | Oil-Resistant Elastomer |
| Fastener | Quick Wing Nut |
| UL File Number | E64791 |
| NEMA Standards | NEMA 1, 4, 4X, 12, 13 |
| RoHS Compliant | Yes |
| Quantity per Box | 10 |
| UPC | 786725490202 |
Typical Applications
- Sealing unused 1/2-inch conduit knockouts on electrical enclosures and junction boxes
- Protecting pushbutton holes in control panels and industrial machinery
- Maintaining NEMA-rated integrity in outdoor, corrosive, and wet environments
- Manufacturing facilities, food processing plants, chemical plants, and utility installations
- Emergency stop button enclosures and pendant control stations
Compatibility & Replacements
Compatible With
- All standard electrical enclosures and junction boxes with 1/2-inch conduit holes
- NEMA 1, 4, 4X, 12, and 13 rated enclosures
- Wiegmann (Hubbell) and equivalent third-party enclosure product lines
- Control panels, switchboards, and machinery housings with knockout openings
Replaces / Drop-In Replacement For
- Equivalent gasketed oil-tight hole seals from competing manufacturers
- Older non-gasketed or non-oil-tight conduit hole plugs (upgrade to full NEMA compliance)
- Verify compatibility with your enclosure specifications before ordering
Works With
- Standard 1/2-inch rigid and flexible conduit (RMC, FMC, NM)
- Pushbutton switches and selector switch installations
- Any electrical enclosure designed for 1/2-inch knockout or drilled holes
- Field wiring and panel assembly procedures per NEC and NEMA standards
