Rittal 8018234 Oil-Resistant P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.90
Rittal 8018234 Oil-Resistant Pushbutton Cutout Gasket, Carbon Steel

Rittal 8018234 Oil-Resistant Pushbutton Cutout Gasket, Carbon Steel

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Model: 8018234

In Stock (leaves warehouse same day if ordered before 3pm ET)

$9.90
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Rittal 8018234 Oil-Resistant Pushbutton Cutout Gasket, Carbon Steel

The Rittal 8018234 Oil-Resistant Pushbutton Cutout Gasket is designed to seal unused or empty pushbutton holes, conduit openings, and knockout openings on electrical enclosures. Constructed from carbon steel with a powder-coated finish in RAL 7035, this 35 mm diameter gasket delivers a clean, oil-resistant closure that helps maintain enclosure integrity in industrial control panels and machine-building applications. Each unit ships as a single-piece gasket, making it a straightforward replacement or retrofit component for panel builders, integrators, and maintenance teams working with Rittal enclosure systems. Keeping unused cutouts properly sealed helps protect internal components from dust, debris, and incidental oil exposure on the shop floor.

Key Features

  • Diameter: 35 mm gasket sized to fit standard mini-pushbutton switch cutouts.
  • Durable Construction: Carbon steel body provides a rigid, long-lasting seal for enclosure openings.
  • Oil-Resistant Material: Gasket material resists oil exposure, suited for industrial and machine-building environments.
  • Finish: Powder-coated finish in RAL 7035 matches Rittal enclosure color standards and resists corrosion.
  • Application: Seals unused or empty pushbutton holes, conduit openings, and knockout openings to keep enclosures protected.
  • Compact Profile: Low-profile 35 mm gasket fits flush against the enclosure surface for a clean finished appearance.
  • Retrofit-Ready: Sized for direct replacement on existing mini-pushbutton cutouts without modifying the enclosure.
  • Packaging: Supplied 1 pc(s) per packaging unit, weighing 0.114 kg per unit for easy handling and inventory.

Technical Specifications

  • Surface finish: Powder-coated
  • Packaging unit: 1 pc(s).
  • Material: Carbon steel
  • Color: RAL 7035
  • Diameter: 35 mm
  • Weight/packaging unit: 0.114 kg

Typical Applications

  • Enclosure Knockout and Cutout Sealing
  • Pushbutton and Switch Panel Closures
  • Conduit Opening Sealing
  • Industrial Enclosure Maintenance and Retrofits
  • Panel Building and Electrical Cabinet Assembly
  • Machine Building and Control Cabinet Fit-Out

Why Rittal?

Rittal enclosure components are built for consistent fit and finish, and this carbon steel, powder-coated gasket is manufactured to the same RAL 7035 color standard used across Rittal enclosure systems, so it blends in cleanly on existing panels. Choosing a Rittal-specific gasket helps ensure a proper seal on pushbutton and knockout cutouts, supporting reliable, code-compliant enclosure protection for professional electrical installations. For panel builders and maintenance teams standardizing on Rittal enclosure hardware, this gasket offers a simple, purpose-built way to close out unused cutouts without introducing mismatched materials or finishes.

Manufacturer Resources

Rittal Product Catalog

Product Specs

Product Type:
Gland Plate & Entry Seal
Product Finish:
Powder-Coated
Product Material:
Carbon Steel
Product Color:
RAL 7035
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Enclosure Accessories

Rittal 8018234 – Frequently Asked Questions

1) What size cutout does the Rittal 8018234 hole seal close off?
The 8018234 is a 35 mm diameter seal, which is the standard mini-pushbutton cutout size used on control panels. If the open hole in your panel is a 22.5 mm pushbutton knockout, this will not fill it correctly, you need a seal matched to that diameter.
2) Do I have to modify the enclosure to install the Rittal 8018234?
No drilling or enlarging. It is sized to drop straight into an existing 35 mm mini-pushbutton cutout, which is what makes it a retrofit part for maintenance crews closing out holes left by removed switches.
3) What is the closest alternative to the Rittal 8018234 cutout gasket for sealing an unused pushbutton hole?
The Hoffman AS250 Hol-Sealer enclosure hole seal is the nearest comparable part. Both close out an empty pushbutton or knockout opening in a sheet metal enclosure, and both use a painted steel body - the Rittal 8018234 is carbon steel powder-coated in RAL 7035, while the Hoffman AS250 Hol-Sealer is painted galvanized steel. The practical difference is cosmetic and material: if the panel is a Rittal enclosure finished in RAL 7035, the 8018234 blends with the surrounding surface, whereas the Hoffman seal is finished to Hoffman's own painted galvanized standard.
4) Does the Hoffman Hol-Sealer fit the same 35 mm pushbutton cutout as the Rittal 8018234?
The Rittal 8018234 is built to a 35 mm diameter, sized for standard mini-pushbutton cutouts, so it drops into an existing 35 mm hole without rework. The Hoffman AS250 Hol-Sealer is a hole seal in the same functional class but belongs to Hoffman's AS250 series, so confirm the hole diameter it is rated for against the opening in your panel before ordering it as a swap. Where the cutout is a 35 mm mini-pushbutton hole, the 8018234 is the direct-fit part.
5) Will the Rittal 8018234 blanking seal match the color of my existing Rittal enclosure?
It is powder-coated RAL 7035, the same light grey standard Rittal uses across its enclosure systems, so it blends into an existing panel face rather than standing out as a patch.
6) Can I use this Rittal cutout seal on a panel that gets sprayed with cutting oil?
Yes. The 8018234 is an oil-resistant seal, built for machine-building and shop-floor control cabinets where incidental oil contact is normal. The body is carbon steel, so it stays rigid in the opening instead of deforming like a soft plug.
7) What is the alternative to a Rittal hole seal if my enclosure is not a Rittal cabinet?
The Hoffman AS250 Hol-Sealer is the other enclosure hole seal carried here, in painted galvanized steel. The Rittal 8018234 is the one to use when you are matching Rittal's RAL 7035 finish on an existing Rittal panel; on a Hoffman or mixed-brand cabinet, the Hoffman seal is the native part.
8) Can this be used to seal an unused conduit opening, not just a pushbutton hole?
Yes, as long as the opening is the 35 mm size. The 8018234 is used on empty pushbutton holes, knockouts, and unused conduit openings to keep dust and debris out of the panel interior.
9) For a machine tool panel with oil spray, should I use the Rittal 8018234 or the Hoffman AS250 Hol-Sealer?
The Rittal 8018234 is specified as an oil-resistant pushbutton cutout gasket, which is why it is called out for industrial control panels and machine-building environments where incidental oil contact is expected. The Hoffman AS250 Hol-Sealer is a painted galvanized steel hole seal for the same general purpose of closing an unused enclosure opening. If oil exposure is the deciding condition on the opening, the oil-resistant gasket material on the 8018234 is the specification to point at.
10) How many pieces come in a pack of the Rittal 8018234?
One. Each packaging unit is a single-piece seal, so if you are closing out six abandoned pushbutton holes across a cabinet bank, order six.
11) If I am standardizing a facility on one hole seal, how do the Rittal 8018234 and Hoffman AS250 Hol-Sealer differ for stocking?
The Rittal 8018234 ships as a single piece per packaging unit at 0.114 kg, in one fixed configuration at 35 mm diameter in RAL 7035 - straightforward to stock as a one-line item for Rittal panels. The Hoffman AS250 Hol-Sealer is part of Hoffman's AS250 Hol-Sealer series of enclosure hole seals, so a shop standardized on Hoffman enclosures would typically carry it to keep material and paint consistent with those cabinets. The deciding factor is usually which enclosure brand dominates the facility.
How fast can I get the Rittal 8018234 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Rittal 8018234 come with a warranty?
Absolutely. The Rittal 8018234 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Rittal 8018234?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Rittal 8018234 from ZenSupply?
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