AS050LG

NVENT HOFFMAN AS056MLG Hole seal M16

nVent HOFFMAN AS056MLG Hol-Sealers hole seal made from mild steel with light grey finish for sealing 14 mm enclosure openings.

SKU: AS056MLGMPN: AS056MLG
Price
List Price ex VAT
Your Price
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Trade pricing is personalised to your account

Manufacturer Lead Time

£22.00

Why Choose the nVent HOFFMAN AS056MLG Hole Seal?

The nVent HOFFMAN AS056MLG is a reliable Hol-Sealers hole seal accessory designed to close unused pushbutton holes, conduit openings and knockout openings in electrical enclosures. As part of the nVent HOFFMAN Hol-Sealers range, it helps maintain enclosure integrity by protecting against dust, dirt, oil and water ingress.

Manufactured from durable mild steel with a light grey RAL 7035 powder-coated finish, the AS056MLG provides a neat and professional solution for sealing unused enclosure openings. The compact design allows easy installation while helping preserve the enclosure protection rating.

Designed for M16 / micro enclosure openings, the nVent HOFFMAN AS056MLG supports sealing applications with a maximum hole diameter of 14 mm and is suitable for industrial electrical cabinets, automation panels and control equipment.

Key Advantages

  • Provides a simple solution for sealing unused enclosure openings.
  • Helps protect against dust, dirt, oil and water ingress.
  • Mild steel construction provides durability and mechanical strength.
  • Light grey finish matches modern electrical enclosure installations.
  • Suitable for maintaining enclosure protection levels after modifications.
  • Designed by nVent HOFFMAN for industrial enclosure systems.

Key Features

  • nVent HOFFMAN Hol-Sealers hole seal series.
  • Model: AS056MLG.
  • Material: Mild steel.
  • Finish: Powder coated.
  • Colour: Light grey RAL 7035.
  • Maximum hole diameter: 14 mm.
  • Hol-Sealer diameter: 20 mm.
  • Includes oil-resistant gasket for improved sealing performance.
  • Suitable for enclosure walls up to 8 mm thick.

Reliable Enclosure Protection and Finishing Solution

Hole seals such as the nVent HOFFMAN AS056MLG provide an effective method for completing enclosure installations after drilling, modification or unused knockout points. By sealing unused openings, they help maintain protection against environmental contaminants and improve installation quality.

The nVent HOFFMAN Hol-Sealers range is designed for electrical engineers, panel builders and installers requiring dependable accessories for adapting and protecting industrial enclosure systems.

Typical Applications

  • Industrial electrical cabinets.
  • Automation and control panels.
  • Machine building enclosures.
  • Conduit and knockout opening protection.
  • Pushbutton hole sealing applications.
  • Electrical installations requiring enclosure modification.

Technical Specifications

Country of Manufacture United States
Manufacturer nVent HOFFMAN
Series AS0 / Hol-Sealers
Model AS056MLG
Product type Hole seal
Material Mild steel
Finish Powder coated
Colour Light grey RAL 7035
Hole diameter 14 mm maximum
Seal diameter 20 mm
Thickness 1.5 mm
Protection rating IP66 when installed correctly in a suitable enclosure

Frequently Asked Questions

What is the nVent HOFFMAN AS056MLG used for?

The AS056MLG is a hole seal accessory used to close unused pushbutton holes, conduit openings and knockout openings in electrical enclosures.

What size hole does the AS056MLG seal?

The AS056MLG seals openings with a maximum hole diameter of 14 mm.

What material is the AS056MLG made from?

The hole seal is manufactured from mild steel with a light grey powder-coated finish.

What protection rating can the AS056MLG help maintain?

When correctly installed in a suitable nVent HOFFMAN enclosure, the hole seal helps maintain enclosure protection levels including IP66 applications.

Where is the AS056MLG typically installed?

The AS056MLG is typically installed in industrial control cabinets, electrical panels and automation enclosures.

Trusted by Industrial Enclosure Professionals

nVent HOFFMAN Hol-Sealers are widely used by electrical engineers and panel builders to complete enclosure modifications while maintaining reliable protection and professional installation standards.

● Service Agreements

Credit Accounts

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.

 Tick  Priority sourcing and supply support

 Tick  Flexible payment terms for qualifying organisations

 Tick  Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

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...