Eaton Auxiliary Microswitch fo...
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Eaton Auxiliary Microswitch for Rotary Handle Mechanism, Frame J-K Circuit Breaker Accessory

Eaton Auxiliary Microswitch for Rotary Handle Mechanism, Frame J-K Circuit Breaker Accessory

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Model: 5108A61G01

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

$95.71
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Eaton Auxiliary Microswitch for Rotary Handle Mechanism, Frame J-K Circuit Breaker Accessory

The Eaton Auxiliary Microswitch for Rotary Handle Mechanism is a molded case circuit breaker accessory designed to work with Frame J-K breakers. This auxiliary microswitch mounts to the rotary handle mechanism to provide remote position sensing for the breaker, making it a practical addition for panels and switchgear where remote monitoring of breaker status is required. Identified with special feature designation G01, this Eaton accessory is engineered to integrate cleanly with compatible Frame J-K molded case circuit breakers for professional electrical installations.

Key Features

  • Frame Compatibility: Designed for use with Frame J-K molded case circuit breakers.
  • Accessory Type: Auxiliary microswitch for rotary handle mechanism, enabling remote status indication of the breaker handle position.
  • Special Feature Designation: Identified as special feature G01 for accurate cross-reference and ordering.
  • Eaton Quality: Manufactured by Eaton for reliable, code-compliant performance as part of a molded case circuit breaker assembly.
  • Application-Specific Design: Purpose-built accessory rather than a general-purpose part, ensuring proper fit and function with compatible Eaton breakers.

Technical Specifications

  • Product Type: Circuit Breaker
  • Special features: G01
  • Department: Electrical
  • Frame size: Frame J-K
  • Type: Auxiliary microswitch for rotary handle mechanism

Typical Applications

  • Commercial and Industrial Electrical Distribution Panels
  • Molded Case Circuit Breaker Retrofits and Upgrades
  • Remote Breaker Status Monitoring Systems
  • Switchgear and Panelboard Assemblies
  • Facility and Building Electrical Maintenance

Why Eaton?

Eaton is a trusted name in circuit protection, and this auxiliary microswitch accessory is built to match the fit and function requirements of Frame J-K molded case circuit breakers. Choosing genuine Eaton accessories like this rotary handle mechanism microswitch helps ensure proper integration with your existing Eaton breaker components for dependable, code-compliant electrical system performance.

Manufacturer Resources

Product Specs

Frame size:
Frame J-K
Compliances:
Contact Manufacturer
Product Type:
Circuit Breaker
Special features:
G01
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers

Eaton 5108A61G01 – Frequently Asked Questions

1) Will the Eaton 5108A61G01 microswitch fit my circuit breaker?
The 5108A61G01 auxiliary microswitch is built for Eaton Frame J and Frame K molded case circuit breakers, and it mounts to the rotary handle mechanism rather than to the breaker body itself. So two things have to be true on your opening: the breaker has to be a J or K frame, and it has to already be fitted with a rotary handle mechanism. If your breaker is direct-handle operated with no rotary mechanism, this part has nothing to mount to. Different Eaton frame sizes take different accessories, so a J-K part will not carry over to another frame.
2) Is this the breaker itself or just an accessory?
Accessory only. The 5108A61G01 is an auxiliary microswitch that attaches to the rotary handle mechanism on a Frame J-K molded case breaker. You are not getting a breaker, a rotary handle mechanism, or an operating shaft with it. If you are building up a disconnect from scratch you still need the breaker and the rotary handle mechanism itself, and this part gets added on top for status sensing.
3) What does an auxiliary microswitch on a rotary handle mechanism actually do?
It reports handle position remotely. The switch senses where the rotary handle mechanism is sitting and passes that status back to a monitoring point, so a facility electrician or a BAS panel can see whether a breaker is on or off without opening the enclosure. That is the reason it shows up in switchgear and panelboard builds and in remote breaker status monitoring, and the reason it gets added during retrofits on existing Eaton Frame J-K gear.
4) What is Eaton special feature G01 on the 5108A61G01?
G01 is the special feature designation that identifies this specific auxiliary microswitch build in Eaton's accessory numbering, and it is the tail of the part number 5108A61G01. When you are cross-referencing against an existing panel schedule or an Eaton order that lists accessories by feature code, G01 is what tells you this is the rotary handle mechanism microswitch for Frame J-K and not one of the adjacent accessory variants. Quote the full 5108A61G01 when ordering.
5) Can I add this microswitch to breakers already installed in the field, or does it have to be factory fitted?
Eaton lists this microswitch for molded case circuit breaker retrofits and upgrades as well as new switchgear and panelboard assemblies, so it is intended to be added to Frame J-K gear that is already in service as long as the rotary handle mechanism is present. Facility and building electrical maintenance is one of the named applications. Treat it as live work planning: the breaker has to come out of service to get at the handle mechanism.
6) Will a generic microswitch work instead of the Eaton part on a Frame J-K rotary handle?
No. This is an application-specific accessory dimensioned to the Eaton rotary handle mechanism on Frame J-K breakers, not a general purpose limit switch you can bracket up. The mounting geometry and the actuation point are what make it read handle position correctly, which is why Eaton assigns it its own part number and feature code G01. Substituting a generic switch means fabricating a mount and guessing at actuation, and it puts the breaker assembly outside its listed configuration.
How fast can I get the Eaton 5108A61G01 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 5108A61G01 come with a warranty?
Absolutely. The Eaton 5108A61G01 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 5108A61G01?
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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