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HOFFMAN AS400 Oiltight Hole Seal, Steel, Gray, NEMA 3R - Oiltight Hole Seals
HOFFMANOiltight Hole Seals

HOFFMAN AS400 Oiltight Hole Seal, Steel, Gray, NEMA 3R

The HOFFMAN Hole Seal: Steel is an oiltight hole seal designed for conduit holes, accommodating a maximum hole diameter of 4.62 inches and a 4-inch conduit hole size. Constructed from steel with a powder-coated gray…

SKU 3G-OTH-07705

Also listed as: AS 400 · AS-400

Brand
HOFFMAN
Item
AS400 Oiltight Hole Seal, Steel, Gray, NEMA 3R
Part Number
AS400
Category
Oiltight Hole Seals
Available to Order
Also known as:AS400HOFFMAN
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
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Technical Specifications

HOFFMAN
Manufacturer Part Number
AS400
Type
For 4.62 in Hole Dia - Max, Steel, 3R, Gray
Material
Steel
Color
Gray
Finish
Powder Coated
Includes
Oil Resistant Gasket
For Hole Type
Conduit
Conduit Hole Size
4 in
NEMA Enclosure Rating
3R

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HOFFMAN Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The HOFFMAN Hole Seal: Steel is an oiltight hole seal designed for conduit holes, accommodating a maximum hole diameter of 4.62 inches and a 4-inch conduit hole size. Constructed from steel with a powder-coated gray finish, it includes an oil-resistant gasket and carries a NEMA 3R enclosure rating.

Frequently Asked Questions

What is the HOFFMAN Hole Seal AS400 used for?

The HOFFMAN Hole Seal AS400 seals unused conduit openings in electrical enclosures, preventing oil, dust, and moisture ingress. It is ideal for industrial environments requiring NEMA 3R protection, such as outdoor or washdown areas, ensuring enclosure integrity and equipment longevity.

What are the specifications of the HOFFMAN Hole Seal AS400?

The HOFFMAN AS400 is a steel hole seal with a powder-coated gray finish, rated NEMA 3R. It fits a 4-inch conduit hole size and accommodates a maximum hole diameter of 4.62 inches. It includes an oil-resistant gasket for oiltight sealing.

Where to buy the HOFFMAN Hole Seal AS400 worldwide?

3G Electric supplies the HOFFMAN Hole Seal AS400 to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this part.

How to install the HOFFMAN Hole Seal AS400?

Install the HOFFMAN AS400 by placing the oil-resistant gasket over the conduit hole, then securing the steel seal with the provided hardware. Ensure the surface is clean and dry for a proper oiltight seal. Torque fasteners to manufacturer recommendations to maintain the NEMA 3R rating.

Used in

Common applications for HOFFMAN
Oil and gas — Hoffman NEMA 3R enclosures with built-in ventilation for outdoor control panels exposed to rain and sleet.
Water treatment — Hoffman NEMA 4X stainless steel enclosures for washdown areas and corrosive environments.
Food and beverage — Hoffman NEMA 4X enclosures and air conditioners for hygienic processing areas requiring dust-tight and moisture-resistant protection.
Power generation — Hoffman wireway systems and U-connectors for routing control wiring in turbine halls and switchgear rooms.
Manufacturing — Hoffman enclosure heaters and LED lights for condensation control and interior illumination in machine control cabinets.
Panel building — Hoffman infeed wiring kits and exhaust grilles for efficient assembly and thermal management of custom control panels.
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HOFFMAN Products

3G Electric supplies HOFFMAN oiltight hole seals. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Oiltight hole seal for sealing unused 1/2 in conduit openings in NEMA 3R enclosures. Made of polished 304 stainless steel with an unpainted finish. Includes an oil-resistant gasket. Fits a maximum 0.88 in hole diameter
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Oiltight hole seal for sealing unused 1/2 in conduit openings in NEMA 3R enclosures. Made of polished 304 stainless steel with an unpainted finish. Includes an oil-resistant gasket. Fits a maximum 0.88 in hole diameter
This oiltight hole seal is constructed from 304 stainless steel with a polished, unpainted finish. It is designed for a 1 1/4 in conduit hole size, accommodating a maximum hole diameter of 1.69 in, and includes an oil resistant gasket. Suitable for sealing unused conduit openings in NEMA 3R enclosures to prevent ingress of oil, dust, and moisture
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This oiltight hole seal is constructed from 304 stainless steel with a polished, unpainted finish. It is designed for a 1 1/4 in conduit hole size, accommodating a maximum hole diameter of 1.69 in, and includes an oil resistant gasket. Suitable for sealing unused conduit openings in NEMA 3R enclosures to prevent ingress of oil, dust, and moisture

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