Eaton E57 Series Replacement M...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$24.99
Eaton E57 Series Replacement Mounting Nut, Plastic Enclosure

Eaton E57 Series Replacement Mounting Nut, Plastic Enclosure

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Model: E57KNC18

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

$24.99
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Eaton E57 Series Replacement Mounting Nut, Plastic Enclosure

The Eaton E57 Series Replacement Mounting Nut is a plastic enclosure mounting component engineered as a direct replacement part for Eaton E57 Series sensing solutions. Measuring 1.1 in. wide, 1.1 in. in length/depth, and .32 in. high, this compact mounting nut secures the E57 Series sensor enclosure in place and is UL Listed for dependable, code-compliant performance in industrial sensing, detection, and control applications. Whether you are servicing an existing installation or maintaining a fleet of sensing devices, this genuine Eaton replacement part restores proper enclosure mounting without the need to replace the entire sensor assembly.

Key Features

  • Compact Footprint: 1.1 in. product width and 1.1 in. product length/depth deliver a precise, low-profile fit within E57 Series sensing enclosures.
  • Low-Profile Height: A .32 in. product height keeps the mounting hardware unobtrusive once installed, preserving the original enclosure envelope.
  • Durable Plastic Construction: Molded plastic enclosure material resists corrosion, is lightweight, and holds up to repeated handling during field service and maintenance.
  • Genuine Replacement Part: Purpose-built for Eaton E57 Series sensing solutions, ensuring correct thread engagement, proper fit, and reliable function.
  • UL Listed: Independently certified to recognized safety standards for confident use in professional and industrial electrical installations.
  • Backed by Manufacturer Warranty: Covered by a 1-year Eaton warranty, giving installers and maintenance teams added peace of mind.
  • Simple Field Replacement: Allows technicians to restore a damaged or worn E57 Series enclosure mount quickly, minimizing sensor downtime.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Product Width: 1.1 in
  • Product Length/Depth: 1.1 in
  • Product Height: .32 in
  • Enclosure Material: Plastic
  • Certifications: UL Listed
  • Warranty: 1 year

Typical Applications

  • Replacement Hardware for Eaton E57 Series Sensing Solutions
  • Industrial Sensor Enclosure Maintenance and Repair
  • Commercial and Industrial Electrical Installations
  • Panel and Control Cabinet Sensor Mounting
  • Preventive Maintenance and Field Service Programs
  • Renovation and Retrofit Projects Involving Existing Eaton Sensors

Why Eaton?

Eaton engineers the E57 Series and its replacement components, including this plastic mounting nut, to the same UL Listed safety standards as the original equipment. Choosing genuine Eaton replacement hardware helps ensure a proper fit, consistent performance, and continued code-compliant operation of your sensing solutions, and the included 1-year warranty reflects Eaton's confidence in the part's durability and reliability for demanding commercial and industrial environments.

Manufacturer Resources

Product Specs

Product Width:
1.1 in
Enclosure material:
Plastic
Warranty:
1 year
Product Length/Depth:
1.1 in
Product Height:
.32 in
Certifications:
UL Listed
Product Type:
Mounting Nut
Department:
Electrical
Product Material:
Plastic
Listing:
UL Listed
Product Group:
Wiring Devices

Eaton E57KNC18 – Frequently Asked Questions

1) What is the Eaton E57KNC18 mounting nut actually used for?
The E57KNC18 is the replacement mounting nut that holds an Eaton E57 Series sensor in its mounting hole. It is the threaded retaining nut for the plastic-enclosure version of the E57 Series, so if the original nut is cracked, stripped, or lost during a sensor swap, you can restore the mount without buying a new sensor assembly.
2) Will this nut fit an Eaton E57 sensor with a metal barrel?
No. The E57KNC18 is the plastic-enclosure nut, matched to the plastic-bodied E57 Series sensors. If your sensor barrel is metal, the plastic nut is not the matching part for it.
3) Is the Eaton E57 plastic mounting nut UL Listed for industrial control panel work?
UL Listed, yes. That rating is carried on the mounting nut itself, which matters for MRO and institutional buyers who have to keep every component in an inspected control cabinet on a recognized listing.
4) Can I use a generic hardware-store nut instead of the Eaton E57 replacement nut?
The E57KNC18 is molded to the E57 Series thread, so it engages correctly and keeps the sensor square in the mount. A generic nut may not match the thread form on the plastic barrel, and the listed part is UL Listed where a substitute from a bin is not.
5) Does the plastic E57 mounting nut hold up in a damp or washdown area?
The nut is molded plastic rather than metal, so it won't corrode and it stays light. That suits wet or chemically aggressive spots where a steel nut would rust onto the barrel and fight you on the next service call.
6) I'm stocking spares for a fleet of Eaton E57 sensors. Is one nut per sensor enough?
Most E57 mounts use the nut on the back side of the panel or bracket, so one E57KNC18 per plastic-body sensor covers a like-for-like replacement. Maintenance crews usually carry a few extra because the nut is the piece most often damaged or dropped during a field sensor swap.
How fast can I get the Eaton E57KNC18 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 E57KNC18 come with a warranty?
Absolutely. The Eaton E57KNC18 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 E57KNC18?
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 E57KNC18 from ZenSupply?
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