Eaton Convertible Contact Mach...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$293.93
Eaton Convertible Contact Machine Tool Control Relay, Four-Pole, 110/120V

Eaton Convertible Contact Machine Tool Control Relay, Four-Pole, 110/120V

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Model: AR420A

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

$293.93
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Eaton Convertible Contact Machine Tool Control Relay, Four-Pole, 110/120V

The Eaton Convertible Contact Machine Tool Control Relay is a four-pole industrial control relay from the AR/ARD series, built for machine tool and industrial control panel applications. It features a 2 NO contact configuration, a 110/120V coil voltage rated for 50-60 Hz operation, and is UL Listed (file E19223) for dependable, code-compliant performance in demanding control circuits.

Key Features

  • Contact Configuration: Four-pole relay with 2 NO contacts for flexible machine tool control wiring.
  • Coil Voltage: 110/120V coil rated at 50-60 Hz for standard industrial control power supplies.
  • Series: Part of Eaton's AR/ARD convertible contact relay series designed for machine tool and industrial control systems.
  • Compact Dimensions: Product width of 3.44 in, depth of 2.88 in, and height of 3.56 in for efficient panel space use.
  • Number of Cavities: 2 blank cavities included with the relay body.
  • Catalog Note: Will not accept top-mounted latch or timers, so plan accessory selection accordingly.
  • Convertible Contact Design: Engineered for reliable switching in machine tool control circuits requiring four-pole relay logic.

Certifications & Compliance

  • UL Listed, file E19223

Technical Specifications

  • Warranty: 1 year
  • Department: Electrical
  • Product Type: Relay
  • Number Of Poles: Four-pole
  • Coil Voltage: 110/120 V
  • Contact Configuration: 2 NO
  • Frequency Rating: 50-60 Hz
  • Series: AR/ARD

Typical Applications

  • Machine Tool Control Panels
  • Industrial Automation and Control Circuits
  • Motor Control and Interlock Logic
  • OEM Industrial Equipment Wiring
  • Control Panel Retrofit and Maintenance

Why Eaton?

Eaton's AR/ARD series convertible contact relays are built to deliver dependable four-pole switching for machine tool and industrial control environments. Backed by UL Listing (file E19223) and a 1-year warranty, this relay is engineered for professionals who need code-compliant, reliable performance in demanding control panel applications.

Manufacturer Resources

Product Specs

Warranty:
1 year
Series:
AR/ARD
Department:
Electrical
Coil Voltage:
110/120 V
Product Length/Depth:
2.88 in
Product Height:
3.56 in
Product Width:
3.44 in
Frequency Rating:
50-60 Hz
Product Type:
Control Relay
Voltage Rating:
110/120V
Configuration:
Four-Pole
Listing:
UL Listed
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays
Product Weight:
1.65 lb
Product Length:
2.88 in

Eaton AR420A – Frequently Asked Questions

1) Will the Eaton AR series control relay coil run on standard 120V control power at 60 Hz?
Yes. The AR/ARD series relay uses a 110/120V coil rated for 50-60 Hz, so it drops onto ordinary North American 120V control transformer output and works equally on 50 Hz export panels.
2) Can I add a top-mounted timer or mechanical latch to this Eaton AR relay?
No. This AR relay will not accept a top-mounted latch or timer attachment. If your control logic needs latching or time delay, specify a separate timing relay or a latching-capable relay instead of planning to bolt an accessory on top of this one.
3) What is the difference between the AR420A and AR6A versions of this Eaton relay?
Pole count. The AR420A is the four-pole version; the AR6A is the six-pole version. Both come out of the same AR/ARD convertible contact family with the 110/120V coil, so pick on how many circuits your interlock or motor control logic has to switch.
4) Is the Eaton four-pole machine tool relay UL Listed for a control panel build?
It is UL Listed under file E19223, which is what a panel shop or plant electrician needs on record when the assembly is inspected.
5) How much panel space does the Eaton AR/ARD machine tool relay take up?
Plan on 3.44 in width, 2.88 in depth and 3.56 in height. On a crowded DIN rail or backpan, the 3.56 in height is usually the number that decides whether the wireway clears.
6) How many contacts does the four-pole Eaton AR relay come wired with, and can it be changed?
The four-pole relay ships with a 2 NO contact configuration and two blank cavities in the body. The convertible contact design of the AR/ARD series is what lets you populate or change contacts rather than being locked into the factory arrangement.
7) Is this Eaton relay suitable for motor interlock logic in a machine tool panel?
That is exactly the application. The AR/ARD convertible contact relay is built for machine tool control panels, industrial automation circuits, motor control and interlock logic, OEM equipment wiring, and retrofit work on existing panels. It is a control relay, not a power contactor, so it switches control circuits rather than motor loads directly.
How fast can I get the Eaton AR420A 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 AR420A come with a warranty?
Absolutely. The Eaton AR420A 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 AR420A?
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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