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AS300 nVent Hoffman Hol-Sealers Hole Seal, 105 mm Diameter, Gray, Mild Steel
nVent HOFFMAN AS300 mild steel hole seal with grey powder coated finish for sealing unused electrical enclosure openings.
£54.08
Why Choose the nVent HOFFMAN AS300 Hol-Sealers Hole Seal?
The nVent HOFFMAN AS300 is a durable mild steel hole seal designed to close unused conduit openings, knockout openings and pushbutton holes in electrical enclosures. As part of the nVent HOFFMAN Hol-Sealers range, it provides a reliable method of protecting enclosure interiors against dust, dirt, oil and water ingress while helping maintain enclosure protection performance.
This hole seal is designed for 3-inch conduit openings and features a powder coated mild steel construction with a grey finish for industrial enclosure applications. The integrated oil-resistant gasket and supplied mounting hardware provide a secure sealing solution for unused enclosure openings.
With a maximum hole diameter of 92 mm and a hole seal diameter of 105 mm, the AS300 is suitable for larger enclosure openings where reliable sealing is required. It is designed for use with compatible nVent HOFFMAN enclosures and supports protection requirements when correctly installed.
Key Advantages
- Mild steel hole seal designed for industrial enclosure protection.
- Seals unused conduit openings, knockout openings and pushbutton holes.
- 3-inch conduit hole compatibility for larger enclosure entries.
- Grey powder coated finish provides a durable industrial appearance.
- Oil-resistant gasket improves sealing reliability.
- Helps maintain enclosure protection ratings when correctly installed.
Key Features
- nVent HOFFMAN Hol-Sealers A80HS series.
- Mild steel construction with powder coated finish.
- For 3-inch conduit openings.
- Maximum hole diameter: 92 mm.
- Hole seal diameter: 105 mm.
- Grey ANSI 61 finish.
- Oil-resistant gasket included.
- Supplied with plated stud and wing nut mounting hardware.
Reliable Sealing for Industrial Enclosures
Unused openings in electrical enclosures can allow contaminants and moisture to enter the cabinet. The nVent HOFFMAN AS300 hole seal provides a practical solution for closing larger spare openings and helping maintain enclosure integrity in industrial environments.
The Hol-Sealers range is designed for electrical enclosure applications requiring dependable sealing, simple installation and durable construction. The AS300 combines robust steel construction with practical sealing features for automation, control and electrical distribution systems.
Typical Applications
- Industrial control panels.
- Electrical distribution enclosures.
- Automation and machine building systems.
- Manufacturing facilities.
- Large conduit opening protection.
- Industrial enclosure modifications requiring unused hole sealing.
Technical Specifications
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| Material | Steel | |
|---|---|---|
| Accessory Type | Seal / Gasket | |
| Country of Manufacture | Mexico | |
| Manufacturer | nVent HOFFMAN | |
| Series | Hol-Sealers / A80HS | |
| Model | AS300 | |
| Product type | Enclosure hole seal | |
| Finish | Powder coated | |
| Colour | Gray | |
| Colour code | ANSI 61 | |
| Application | 3-inch conduit holes | |
| Maximum hole diameter | 92 mm | |
| Hole seal diameter | 105 mm | |
| Material thickness | 16 gauge | |
| Protection rating | IP66 when installed correctly | |
| Enclosure compatibility | nVent HOFFMAN enclosures |
Frequently Asked Questions
What is the nVent HOFFMAN AS300 used for?
The AS300 is a mild steel hole seal used to close unused conduit openings, knockout openings and pushbutton holes in electrical enclosures.
What size opening does the AS300 seal?
The AS300 is designed for 3-inch conduit openings with a maximum hole diameter of 92 mm.
What material is the AS300 made from?
The hole seal is manufactured from mild steel with a powder coated grey finish.
What is the diameter of the AS300 hole seal?
The AS300 has a 105 mm hole seal diameter for covering larger enclosure openings.
Does the AS300 help protect against dust and water?
Yes. When correctly installed, the AS300 helps seal enclosure openings against dust, dirt, oil and water and supports enclosure protection requirements.
Trusted by Industrial Enclosure Users Worldwide
nVent HOFFMAN Hol-Sealers provide dependable enclosure protection by combining robust steel construction, reliable sealing performance and compatibility with industrial enclosure systems.
