Eaton Freedom Series NEMA Top-...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$9.14
Eaton Freedom Series NEMA Top-Mount Auxiliary Contact

Eaton Freedom Series NEMA Top-Mount Auxiliary Contact

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Model: C320KGSD

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

$9.14
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Eaton Freedom NEMA Auxiliary Contact, Top Mounting

The Eaton Freedom NEMA Auxiliary Contact is engineered for use on Starters and Contactors within the Eaton Freedom series of motor control equipment. Featuring a top mounting method, this auxiliary contact adds supplemental switching for control, interlocking, and signaling functions in motor control circuits. Available in a range of contact configurations to suit different timing and switching requirements, the unit is cUL Listed and backed by a 1-year warranty, making it a dependable choice for professional electrical and industrial control installations where precise auxiliary switching is required alongside primary contactor and starter operation.

Key Features

  • Mounting Method: Top mounting for straightforward, space-saving installation directly onto compatible Eaton Freedom Starters and Contactors.
  • Application: Used on Starters and Contactors to provide auxiliary switching for control, interlocking, and monitoring circuits.
  • Contact Type: Offered in multiple contact configurations; per Eaton catalog notes, NCI denotes Normally Closed early-opening contacts designed for use in reversing applications, EC denotes Early Closing, and LO denotes Late Opening, allowing precise timing control within a motor control scheme.
  • Series: Part of the Eaton Freedom series of motor control and protection devices, designed for consistent fit and performance with compatible Freedom components.
  • Warranty: Backed by a 1-year manufacturer warranty for added confidence in long-term operation.

Certifications & Compliance

  • cUL Listed

Technical Specifications

  • Mounting Method: Top
  • Warranty: 1 year
  • Type: Auxiliary contact
  • Series: Freedom

Typical Applications

  • Motor Control and Protection Circuits
  • Auxiliary Switching for Starters and Contactors
  • Reversing Motor Control Applications
  • Industrial Control Panels
  • Commercial and Industrial Electrical Installations
  • Interlocking and Signaling Circuits in Motor Control Centers

Why Eaton?

Eaton's Freedom series is built to deliver reliable, code-compliant performance for motor control applications, and this auxiliary contact is cUL Listed for added assurance in professional installations. With top-mounting convenience and clearly defined contact behavior across its available configurations, it is a practical addition to Starters and Contactors requiring supplemental switching, interlocking, or signaling. Backed by Eaton's 1-year warranty, it supports dependable, long-term operation in demanding industrial and commercial electrical environments where consistent auxiliary contact performance is essential.

Variant Specifications

Contact ConfigurationSKU
C320KGT1 / C320KGT4 / C320KGT9 / C320KGT15C320KGSD
C320KGT2 / C320KGT10 / C320KGT11 / C320KGT13 / C320KGT16C320KGT16

Manufacturer Resources

Product Specs

Used with:
Used on Starters and Contactors
Listing:
cUL Listed
Department:
Electrical
Series:
Freedom
Product Type:
Auxiliary Contact
Certifications:
cUL Listed
Warranty:
1 year
Product Group:
Wiring Devices
Product Subgroup:
Motor Starters & Contactors

Eaton C320KGSD – Frequently Asked Questions

1) What does the Eaton Freedom C320KG auxiliary contact mount to?
It mounts on the top of Eaton Freedom series starters and contactors. Top mounting keeps the contact block within the existing device footprint instead of taking side space, which matters when the starter is tight against adjacent gear in a panel. It is intended for Freedom motor control equipment, not as a universal contact block for other manufacturers' contactors.
2) What do the NCI, EC and LO contact designations on Eaton Freedom auxiliary contacts mean?
NCI is a normally closed early-opening contact, used in reversing starter applications so the opposite direction cannot be energized before the running contactor has dropped out. EC is early closing and LO is late opening, both used to sequence control or signaling circuits ahead of or behind the main contactor. Pick the timing behavior your control scheme needs before you pick the catalog number.
3) Which Eaton C320KG catalog numbers does each contact configuration cover?
Two configuration groups are offered. One covers C320KGT1, C320KGT4, C320KGT9 and C320KGT15, ordered under MPN C320KGSD. The other covers C320KGT2, C320KGT10, C320KGT11, C320KGT13 and C320KGT16, ordered under MPN C320KGT16. Match the T-number called out on your starter or control drawing to the correct group when you order.
4) Can I use this Eaton auxiliary contact on a circuit breaker or a disconnect switch?
No. The Freedom C320KG is built for starters and contactors, not for breakers or disconnects. For breaker status contacts, the Square D ComPact NSXm auxiliary contact handles OF/SD circuit breaker status, and the Square D Type S isolated alarm contact kit is an alarm contact. For a disconnect switch, the ABB OA1G10 is a 1-NO auxiliary contact for OT/OS disconnects.
5) What auxiliary contact should I use if the device is an ABB contactor or relay rather than an Eaton Freedom starter?
The Eaton Freedom C320KG top-mount auxiliary contact is built to mount on Eaton Freedom series starters and contactors, so it is not the part for an ABB device. For ABB contactors and relays, the ABB CR305X series auxiliary contact is the matching accessory. Each manufacturer's auxiliary block is keyed to its own contactor body, so the choice follows the contactor brand, not the contact configuration you want.
6) Can I use a Freedom C320KG auxiliary contact to signal the position of a disconnect switch?
No. The C320KG is a top-mounting auxiliary contact for Eaton Freedom starters and contactors, where it adds switching for control, interlocking, and signaling in the motor control circuit. Signaling the position of a disconnect is a different job - the ABB OA1G10 is a 1-NO auxiliary contact switch made for OT and OS disconnect switches. Pick by the host device: contactor body versus disconnect body.
7) I need breaker status contacts, not motor starter contacts - what is the right part?
The Eaton Freedom C320KG is a starter and contactor accessory and does not fit a molded case breaker. For circuit breaker status indication, the Square D ComPact NSXm auxiliary contact provides OF and SD circuit breaker status signaling. Use the C320KG where the switching has to follow contactor coil operation, and the NSXm contact where it has to follow breaker position or trip.
8) Is the Eaton Freedom auxiliary contact listed for use in a panel that needs Canadian approval?
The Freedom top-mount auxiliary contact is cUL Listed, which is the Canadian listing an inspector looks for on control components in industrial panels.
9) What is an auxiliary contact actually used for on a motor starter?
It adds extra switching that follows the main contactor without carrying motor current. Typical uses are holding-in (seal-in) and control circuits, electrical interlocking between contactors, and signaling or monitoring back to a PLC or pilot light. On the Freedom line these are also used in reversing schemes and in motor control center interlocking and signaling circuits.
10) What is the difference between the Freedom C320KG auxiliary contact and a Bussmann BAC blown fuse contact?
They sense different things. The Freedom C320KG top-mount auxiliary contact mounts on an Eaton Freedom starter or contactor and switches with the contactor for control, interlocking, and signaling. The Bussmann BAC series auxiliary contact is a fuse-mounted device covering a 1A to 12A amp range. If the circuit needs to know a fuse opened, the BAC is the device; if it needs to know the contactor picked up, the C320KG is.
11) Is a Square D 9999SO4 alarm contact kit an equivalent substitute for the Eaton C320KG?
It is not a drop-in equivalent. The Square D 9999SO4 is a Type S isolated alarm contact kit, intended for Square D Type S devices. The Eaton C320KG is a Freedom series top-mount auxiliary contact for Eaton Freedom starters and contactors, offered in configurations including normally closed early-opening for reversing applications, early closing, and late opening. Mount the contact block made for the starter you actually have.
How fast can I get the Eaton C320KGSD 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 C320KGSD come with a warranty?
Absolutely. The Eaton C320KGSD 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 C320KGSD?
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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