Eaton E34 Series Watertight/Oi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$295.79
Eaton E34 Series Watertight/Oiltight Indicating Light, 30.5mm

Eaton E34 Series Watertight/Oiltight Indicating Light, 30.5mm

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Model: E34TB120
$295.79

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

$295.79
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Eaton E34 Series Watertight/Oiltight Indicating Light, 30.5mm

The Eaton E34 Series Corrosion-Resistant Indicating Light is a Watertight/Oiltight pilot light built for harsh-duty industrial and washdown environments. This indicating light carries a NEMA 3R rating and is UL Listed, making it suitable for demanding process, plant, and outdoor control-panel applications where reliable visual signaling is required.

Key Features

  • Compact Footprint: Measures 2.3 in wide, 3.4 in deep, and 2.1 in high for straightforward panel and enclosure mounting.
  • Corrosion-Resistant Construction: Watertight/Oiltight design withstands washdown, moisture, and oil exposure common in industrial settings.
  • Reliable Signaling: Engineered for dependable, repeatable operation in industrial control applications.
  • NEMA 3R Rating: Suitable for outdoor and wet-location use where protection from rain, sleet, and external ice formation is required.
  • UV Application Note: Eaton catalog notes recommend NEMA 4X 10250T operators where the unit will be exposed to ultraviolet light.
  • E34 Series: Part of Eaton's E34 pushbutton and indicating light platform for industrial control applications.

Certifications & Compliance

  • UL Listed
  • NEMA 3R Rated
  • FDA 3-A Compliant

Technical Specifications

  • Product Width: 2.3 in
  • Rating: NEMA 3R
  • Catalog Notes: Use NEMA 4X 10250T operators where exposed to ultraviolet light
  • Warranty: 1 year
  • Series: E34
  • Product Length/Depth: 3.4 in
  • Compliances: FDA 3-A
  • Product Height: 2.1 in
  • Certifications: UL Listed

Typical Applications

  • Industrial Control Panels and Machine Control Stations
  • Washdown and Wet-Process Environments
  • Outdoor Equipment Enclosures Requiring NEMA 3R Protection
  • Food and Beverage Processing Facilities (FDA 3-A Compliant Areas)
  • Oil-Exposed Manufacturing and Plant Floor Applications

Why Eaton?

Eaton's E34 Series Corrosion-Resistant Indicating Light delivers UL Listed, NEMA 3R-rated performance backed by a Watertight/Oiltight construction built to hold up in demanding industrial environments. With FDA 3-A compliance and a 1-year warranty, this indicating light offers dependable, code-compliant visual signaling for professional control-panel installations.

Variant Specifications

VoltageTypeModelActuatorSKU
120V/240VWatertightStandardStandardE34TB120
120V/240VOiltightStandardStandardE34TB120H3X
120V/240VClass I Division 2 Watertight/OiltightStandardStandardE34TB240
380VStandardE34TB380StandardE34TB380
480VStandardStandardStandardE34TB480
480VStandardStandardPresTestE34TPB120L

Manufacturer Resources

Product Specs

Product Type:
Indicating Light
Series:
E34
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Push Buttons & Pilot Devices

Eaton E34TB120 – Frequently Asked Questions

1) Will the Eaton E34 indicating light fit a standard 30.5mm panel cutout?
Yes. The E34 Series indicating light is a 30.5mm unit, which is the standard heavy-duty industrial pilot light hole size used across most machine control stations and control panels. Behind the panel it takes up 2.3 in wide by 3.4 in deep by 2.1 in high, so check clearance to adjacent devices and the enclosure back pan before drilling out a crowded door.
2) Which Eaton E34 pilot light do I order for a 480V control circuit?
Two of the E34 units run 480V: E34TB480 with a standard actuator, and E34TPB120L with a PresTest actuator. The rest of the family is built for other circuit voltages, so ordering the 120V/240V unit onto a 480V circuit is the common mistake here. Match the voltage to the control transformer secondary, not to the incoming line.
3) Can I use this Eaton pilot light in a Class I Division 2 hazardous area?
Only one unit in the E34 family is built for it: E34TB240, a 120V/240V Class I Division 2 watertight/oiltight indicating light. The standard watertight and oiltight E34 units are not Division 2 devices. If the panel sits in a classified area, that part number is the one to specify.
4) Is the Eaton E34 indicating light rated for outdoor or washdown use?
It carries a NEMA 3R rating and UL Listing, which covers outdoor enclosures needing protection from rain, sleet, and external ice. The watertight/oiltight construction is aimed at washdown, moisture, and oil exposure on the plant floor. One caveat worth respecting: Eaton's catalog notes call for NEMA 4X 10250T operators where the device will sit in direct ultraviolet light, so a south-facing outdoor station may need the 4X family instead.
5) What is the difference between the standard and PresTest actuator on the Eaton E34 light?
A PresTest actuator lets you press the lens to test the lamp without energizing the circuit it is monitoring, so an operator can confirm the bulb is good rather than assuming a dark light means the machine is off. Eaton offers it on the E34TPB120L. Every other E34 unit ships with the standard actuator, which is indicate-only. If your plant's lockout or startup checklist includes a lamp test, order the PresTest version.
6) Can this Eaton pilot light go on a food or beverage processing line?
Yes, the E34 indicating light is FDA 3-A compliant, along with UL Listed and NEMA 3R rated. That combination is what dairy, beverage, and food plants look for on operator stations that get hosed down as part of the sanitation cycle.
7) What is the difference between the watertight and oiltight versions of the Eaton E34TB120?
Both run 120V/240V and share the same 30.5mm body. E34TB120 is catalogued as the watertight unit; E34TB120H3X is the oiltight one. For a machine tool with coolant or cutting oil mist, spec the oiltight H3X. For a wet or washdown area, the watertight unit is the match. Order them by part number rather than by description, since the two look identical on the panel face.
8) I need a 380V indicating light for an imported machine panel. Does Eaton make one in the E34 line?
Yes. E34TB380 is the 380V unit in the E34 Series, standard actuator. That covers European and export machine panels running 380V control circuits, and it is the same 30.5mm mount as the rest of the family, so it drops into an existing cutout when you are converting or repairing a panel.
9) Can I mix Eaton E34 indicating lights with the pushbuttons already in my operator station?
The E34 indicating light is part of Eaton's E34 pushbutton and indicating light platform, so it is built to sit alongside E34 operators in the same 30.5mm holes across a control station. If your existing station is a different Eaton family, confirm the hole size is 30.5mm before you assume it swaps one for one.
How fast can I get the Eaton E34TB120 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 E34TB120 come with a warranty?
Absolutely. The Eaton E34TB120 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 E34TB120?
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
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