The nVent HOFFMAN AS050LG is a reliable 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 helps protect enclosure interiors against dust, dirt, oil and water ingress while maintaining enclosure protection performance.
This hole seal is designed for M20 / 1/2-inch conduit openings and provides a simple solution for sealing unused enclosure entries. The steel construction with light grey powder coated finish offers a durable and professional appearance suitable for industrial control panels and electrical enclosure applications.
With a maximum hole coverage of 22 mm and an external diameter of 35 mm, the AS050LG is suitable for compatible nVent HOFFMAN enclosure systems. It includes an oil-resistant gasket and mounting hardware to provide a secure and effective sealing solution.
Key Advantages
Steel hole seal designed for electrical enclosure protection.
Seals unused conduit openings and knockout holes against dust, dirt, oil and water.
M20 / 1/2-inch conduit hole compatibility for common enclosure entries.
Includes oil-resistant gasket for improved sealing performance.
Helps maintain enclosure protection ratings when correctly installed.
Key Features
nVent HOFFMAN Hol-Sealers series.
Steel construction with powder coated finish.
For M20 / 1/2-inch conduit openings.
Maximum hole diameter: 22 mm.
Hole seal diameter: 35 mm.
Light grey RAL 7035 colour 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 create potential entry points for contaminants and moisture. The nVent HOFFMAN AS050LG hole seal provides a practical method of closing spare conduit and knockout openings to help maintain enclosure integrity in industrial environments.
Designed for use with nVent HOFFMAN enclosure systems, the Hol-Sealers range combines durable materials, simple installation and effective sealing performance for automation, electrical distribution and control panel applications.
The AS050LG is a steel hole seal used to close unused conduit openings, knockout holes and pushbutton openings in electrical enclosures.
What size opening does the AS050LG seal?
The AS050LG is designed for M20 / 1/2-inch conduit openings with a maximum hole diameter of 22 mm.
What material is the AS050LG made from?
The hole seal is manufactured from mild steel with a light grey powder coated finish.
What colour is the nVent HOFFMAN AS050LG?
The AS050LG has a light grey RAL 7035 powder coated finish.
Does the AS050LG help protect against water and dust?
Yes. When correctly installed, the hole seal helps protect enclosure openings against dust, dirt, oil and water and can support enclosure protection requirements.
Trusted by Industrial Enclosure Users Worldwide
nVent HOFFMAN Hol-Sealers provide dependable enclosure protection by sealing unused openings with durable construction, practical installation features and reliable environmental protection.
Country of Manufacture
United States
Manufacturer
nVent HOFFMAN
Series
Hol-Sealers / A80HS
Model
AS050LG
Product type
Enclosure hole seal
Material
Mild steel
Finish
Polyester powder coated
Colour
Light grey
Colour code
RAL 7035
Application
M20 / 1/2-inch conduit holes
Maximum hole diameter
22 mm
Hole seal diameter
35 mm
Thickness
1.5 mm
Protection rating
IP66 when installed correctly
Mounting hardware
Plated stud and wing nut
Package quantity
10 pieces
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...