Eaton E30 Square Multifunction...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$21.83
Eaton E30 Square Multifunction Pushbutton, Watertight/Oiltight, Black Actuator

Eaton E30 Square Multifunction Pushbutton, Watertight/Oiltight, Black Actuator

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Model: E30KB120

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

$21.83
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Eaton E30 Square Multifunction Pushbutton, Watertight/Oiltight, Black Actuator

The Eaton E30 Square Multifunction Pushbutton is a 30.5 mm, square multifunction, watertight/oiltight pushbutton component designed for use with Eaton square multifunction pushbutton operators. Finished with a black actuator and engraved with an OPEN legend in 3/16 inch high letters, this component delivers clear visual identification for critical control functions. Backed by Eaton's 1 year warranty, the E30 Series is built for dependable performance in industrial control panels, machine interfaces, and process equipment where sealed, oil-resistant operation is required.

Key Features

  • Trade Size: 30.5 mm square multifunction mounting for standard Eaton E30 pushbutton stations.
  • Watertight/Oiltight Construction: Sealed square multifunction design resists moisture and oil intrusion in demanding industrial environments.
  • Black Actuator: Black-finished actuator provides strong visual contrast and consistent operator ergonomics.
  • Engraved Legend: OPEN legend with 3/16 inch high letters for fast, accurate function identification on the panel face.
  • Application Compatibility: Engineered for use with Eaton pushbutton, square multifunction operators for direct fit and function.
  • E30 Series Design: Part of Eaton's established E30 operator interface and pushbutton platform used across industrial control applications.

Technical Specifications

  • Series: E30
  • Type: 30.5 mm, Square Multifunction Watertight/Oiltight
  • Used With: Pushbutton, square multifunction
  • Legend: OPEN
  • Actuator Color: Black
  • Letter Height: 3/16 inch
  • Warranty: 1 year

Typical Applications

  • Industrial Control Panels and Operator Stations
  • Machine and Equipment Interface Panels
  • Manufacturing and Process Control Equipment
  • Panelboard and Switchgear Control Interfaces
  • Wet, Damp, or Oil-Exposed Industrial Environments

Why Eaton?

Eaton's E30 Series pushbutton components are built with watertight/oiltight sealing and durable actuator construction to hold up under harsh industrial conditions where moisture and oil are common. The engraved OPEN legend and black actuator finish support fast, accurate operator recognition on the panel face, while the standard 30.5 mm square multifunction footprint ensures straightforward compatibility with existing Eaton pushbutton stations. Backed by a 1 year warranty, this component is built for code-compliant, reliable performance in professional electrical and industrial control installations.

Manufacturer Resources

Product Specs

Product Width:
4 in
Used with:
Pushbutton, square multifunction
Legend:
OPEN
Product Length/Depth:
5 in
Special features:
Used with Pushbutton, square multifunction
Product Type:
Pushbutton
Actuator color:
Black
Warranty:
1 year
Product category:
Button
Series:
E30
Department:
Electrical
Product Color:
Black
Configuration:
Square Multifunction
Product Group:
Motor Control & Automation
Product Subgroup:
Push Buttons & Pilot Devices

Eaton E30KB120 – Frequently Asked Questions

1) Will the Eaton E30 pushbutton legend plate fit a standard 30.5 mm panel cutout?
Yes. The E30 square multifunction component is built on Eaton's 30.5 mm square multifunction footprint, so it drops onto standard E30 pushbutton stations and operators without reworking the panel face. It is the legend/actuator component, meant to be used with an Eaton square multifunction pushbutton operator rather than as a complete standalone switch.
2) What is the difference between the Type B, Type C and Type E extended actuators on the Eaton E30 OPEN pushbutton?
The E30 OPEN pushbutton comes in three extended actuator styles, ordered as separate part numbers: Type B extended is E30KB120, Type C extended is E30KC120, and Type E extended is E30KE120. All three carry the same black actuator and engraved OPEN legend, so the actuator style is the only ordering choice you need to match to the operator and panel arrangement you already have.
3) Does the Eaton E30 OPEN pushbutton come with the contact block and operator, or do I need to order those separately?
This is the square multifunction pushbutton component with the black actuator and engraved OPEN legend. It is specified for use with an Eaton square multifunction pushbutton operator, so the operator and its contact blocks are ordered alongside it to complete a working station. If you are replacing a faded or damaged button on an existing E30 station, this part alone is what you need.
4) Can an Eaton E30 pushbutton be used on a wash-down or oily machine panel?
That is what the construction is for. The E30 square multifunction component is a watertight/oiltight design, sealed against moisture and oil intrusion, which is why it shows up on machine interface panels, process equipment and damp or oil-exposed production areas rather than dry enclosure-only locations.
5) I need a matching OPEN button for the rest of my E30 control stations. Will this keep everything consistent?
Yes, if the rest of your stations are Eaton E30. The black actuator and engraved OPEN legend are fixed on this component, and the 30.5 mm square multifunction footprint is the same one used across the E30 platform, so it matches existing buttons on the line. The one thing to match is actuator style: order Type B (E30KB120), Type C (E30KC120) or Type E (E30KE120) extended to suit what is already installed.
6) Is the OPEN marking on this Eaton pushbutton printed or engraved, and how big are the letters?
It is engraved, not printed or a stick-on label, so it will not wear off under gloved hands or solvent wipe-down. The OPEN legend is set in 3/16 inch high letters on a black actuator, which gives the contrast maintenance crews need to pick out the right button on a crowded panel face.
7) How much panel room does the Eaton E30 square multifunction pushbutton take up?
The part measures 5 in by 4 in on its length/depth and width dimensions, so allow for that envelope when laying out button spacing or checking clearance behind the panel door on an existing operator station.
How fast can I get the Eaton E30KB120 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 Eaton E30KB120 come with a warranty?
Absolutely. The Eaton E30KB120 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 Eaton E30KB120?
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 Eaton E30KB120 from ZenSupply?
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