Eaton Auxiliary Contact for Ro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$54.34
Eaton Auxiliary Contact for Rotary Disconnect Switch, R9 Series, 600V

Eaton Auxiliary Contact for Rotary Disconnect Switch, R9 Series, 600V

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Model: AC1NOR9

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

$54.34
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Eaton Auxiliary Contact for Rotary Disconnect Switch, R9 Series, 600V

The Eaton Auxiliary Contact for Rotary Disconnect Switch is a Standard AC auxiliary contact accessory engineered for use with Eaton rotary disconnect switches rated 600-1200A. Part of the R9 accessory series, this auxiliary contact carries a 600V voltage rating and is designed to provide supplemental switching and signaling functions within a rotary disconnect assembly. It mounts directly to compatible Eaton rotary disconnect switch bodies, adding auxiliary contact positions without requiring a separate enclosure or additional wiring infrastructure. It is built to integrate seamlessly with Eaton disconnect switch platforms for reliable auxiliary circuit control in industrial and commercial electrical systems, helping electricians and panel builders add interlocking, status-indication, or remote-signaling functions to existing rotary disconnect installations.

Key Features

  • Voltage Rating: Rated 600V for use in demanding industrial and commercial power distribution circuits.
  • Standard AC Type: Configured as a Standard AC auxiliary contact for compatibility with Eaton rotary disconnect switch controls.
  • Compatible Range: Designed for use with Eaton rotary disconnect switches rated 600-1200A.
  • R9 Accessory Series: Part of Eaton's R9 auxiliary contact line for rotary disconnect switches, engineered for consistent fit and function across the compatible switch range.
  • Auxiliary Contact Function: Provides supplemental switching and signaling contacts for interlock and status-indication circuits within the disconnect assembly.
  • Panel-Ready Design: Designed to add auxiliary switching capability to a rotary disconnect switch without modifying the primary power circuit.

Technical Specifications

  • Voltage Rating: 600V
  • AC Type: Standard
  • Type: Auxiliary Contact
  • Product Category: Auxiliary Contacts
  • Series: R9
  • Compatible Disconnect Rating: 600-1200A

Typical Applications

  • Rotary Disconnect Switch Assemblies
  • Motor Control and Protection Circuits
  • Auxiliary Signaling and Interlock Circuits
  • Industrial and Commercial Electrical Panels
  • Panelboard and Switchgear Retrofits
  • Remote Status Indication for Disconnect Position

Why Eaton?

Eaton is a trusted name in electrical distribution equipment, and this R9 auxiliary contact is built to the same 600V-rated standard that professionals rely on for rotary disconnect switch installations rated 600-1200A. Choosing genuine Eaton auxiliary contacts helps ensure proper fit, dependable switching performance, and consistent compatibility with Eaton disconnect switch assemblies for code-compliant electrical work. Eaton's auxiliary contact accessories are designed to work as part of a complete, coordinated disconnect switch system, giving contractors and panel builders confidence when adding auxiliary functions to existing installations.

Manufacturer Resources

Product Specs

Voltage Rating:
600V
AC type:
Standard
Product Type:
Auxiliary Contact
Product Category:
Auxiliary contacts
Certifications:
Contact Manufacturer
Department:
Electrical
Series:
R9
Product Group:
Wiring Devices

Eaton AC1NOR9 – Frequently Asked Questions

1) Which Eaton auxiliary contact do I need for a 600-1200A rotary disconnect switch?
Order the AC1NOR9. That's the R9 series auxiliary contact built for Eaton rotary disconnect switches rated 600 to 1200 amperes, and it gives you a single normally open contact. The other option, AC1NONC, is the 30 ampere version with a 1NO-1NC configuration, so it belongs on smaller switches, not on the 600-1200A frames.
2) Will an Eaton R9 auxiliary contact fit an ABB or Square D disconnect?
No. The R9 contact is built to mount on Eaton rotary disconnect switch bodies and is not a cross-brand accessory. For ABB OT and OS disconnects, the ABB OA1G10 is the 1-NO auxiliary contact switch made for those switches. On Square D circuit breakers, the ComPact NSXm auxiliary contact handles OF/SD breaker status, and the Square D Type S isolated alarm contact kit covers alarm signaling on that platform.
3) What is the closest equivalent to the Eaton R9 auxiliary contact if the disconnect switch is an ABB unit?
For ABB disconnects, the direct counterpart is the ABB OA1G10, a 1-NO auxiliary contact switch built for ABB OT and OS disconnect switches. The Eaton R9 auxiliary contact is made to mount to Eaton rotary disconnect switch bodies rated 600-1200A and is offered in a 1NO configuration as well as a 1NO-1NC configuration, so the contact arrangement lines up with the OA1G10 in the single normally-open form. Auxiliary contacts for disconnects are brand-specific mechanically, so match the accessory to the switch you actually have in the enclosure.
4) Can I use a contactor auxiliary contact block instead of the Eaton R9 auxiliary contact on a rotary disconnect?
No. The ABB CR305X series auxiliary contact is built for contactors and relays, and it attaches to a contactor body rather than to a disconnect switch mechanism. The Eaton R9 auxiliary contact is designed to mount directly to Eaton rotary disconnect switch bodies so the contact follows the handle position of the disconnect, which is what drives interlock and status-indication circuits. Use the contactor-style block only where the parent device is a contactor or relay.
5) I need a normally-closed contact as well as a normally-open one on my disconnect. Which options cover that?
Within the Eaton R9 auxiliary contact family, the 1NO-1NC configuration provides both a normally-open and a normally-closed contact on one accessory, while the other configuration is 1NO only. Among comparable disconnect accessories, the ABB OA1G10 is a 1-NO auxiliary contact switch for ABB OT and OS disconnects, so it supplies a single normally-open contact. Specify the 1NO-1NC version when the interlock scheme needs both states.
6) Can I use this Eaton R9 auxiliary contact on a 480V motor circuit?
Yes. The R9 auxiliary contact is rated 600V, which covers 120V, 240V and 480V control and signaling circuits in industrial and commercial distribution.
7) What can I actually use an auxiliary contact on a disconnect switch for?
Three common jobs: interlocking, so downstream equipment cannot run when the disconnect is open; status indication, so a panel light or PLC input shows disconnect position; and remote signaling back to a control system. On the Eaton R9 it is a Standard AC type contact, so it is switching the control circuit only and never carries the load.
8) I need an auxiliary contact for a fused disconnect or a contactor, not a rotary disconnect. Is this the right part?
Not likely. The Eaton R9 is specific to rotary disconnect switch assemblies. For contactors and relays, the ABB CR305X series auxiliary contact is the accessory built for that duty. For fuse-based signaling, the Bussmann BAC series auxiliary contact covers a 1A to 12A range. Match the accessory to the device platform it bolts to, not just to the contact arrangement you want.
9) Can I add an auxiliary contact to a rotary disconnect that is already installed in a panel?
That is the intended use. The R9 auxiliary contact is meant to add interlocking, status indication or remote signaling to existing Eaton rotary disconnect installations, and it does it without modifying the primary power circuit. Confirm your switch is in the 600-1200 ampere band before ordering the AC1NOR9, since that variant is matched to those frames.
10) What is the difference between the Eaton R9 auxiliary contact and a Square D Type S isolated alarm contact kit?
The Square D 9999SO4 is a Type S isolated alarm contact kit, intended to provide an isolated alarm circuit within Square D Type S control assemblies. The Eaton R9 auxiliary contact is a disconnect switch accessory that mounts to Eaton rotary disconnect bodies and is available with either a single normally-open contact or a 1NO-1NC pair, supporting interlock, status-indication, and remote-signaling circuits. Choose by the host device and by whether you need a normally-closed contact as well as a normally-open one.
11) What should I use for breaker status signaling instead of the Eaton R9 auxiliary contact?
For circuit breaker status, look at the Square D ComPact NSXm auxiliary contact, which provides OF and SD circuit breaker status signaling for NSXm frames. The Eaton R9 auxiliary contact signals the position of an Eaton rotary disconnect switch rather than a molded case breaker, and it carries a 600V rating. Pick the accessory that matches the switching device being monitored: the NSXm kit for breaker open/fault signaling, the R9 for disconnect position.
12) Is the Bussmann BAC auxiliary contact a substitute for the Eaton R9 auxiliary contact?
They serve different signals. The Bussmann BAC series auxiliary contact covers a 1A to 12A amp range and is associated with fuse and fuseholder assemblies rather than a rotary disconnect mechanism. The Eaton R9 auxiliary contact is a Standard AC type accessory rated 600V that adds contact positions to Eaton rotary disconnect switches rated 600-1200A. If the circuit needs to know the handle position of the disconnect, the R9 is the part; if it needs a signal from the fuse side, the BAC addresses that instead.
How fast can I get the Eaton AC1NOR9 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 AC1NOR9 come with a warranty?
Absolutely. The Eaton AC1NOR9 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 AC1NOR9?
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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