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Eaton Freedom NEMA Motor Starter with C306 Bi-Metal Overload Relay
The Eaton Freedom NEMA motor control starter is engineered for dependable motor protection in industrial and commercial power systems. Built with a C306 bi-metal overload relay, it provides reliable motor circuit protection for demanding electrical installations, with a coil voltage of 120V at 60 Hz or 110V at 50 Hz for flexible power system compatibility.
Key Features
- Coil Voltage: 120V at 60 Hz or 110V at 50 Hz coil voltage for flexible power system compatibility.
- C306 Bi-Metal Overload Relay: Starter w/C306 bi-metal OLR delivers thermal overload protection for connected motors.
- Horizontal Mounting: Designed for horizontal mounting orientation in motor control enclosures and panels.
- Heater Packs Sold Separately: Per catalog notes, heater packs must be purchased separately to complete overload protection setup.
- Freedom Series Construction: Rugged, code-compliant design built for consistent switching and overload performance in demanding environments.
Technical Specifications
- Mounting: Horizontal
- Coil Voltage: 120V at 60 Hz, 110V at 50 Hz
- Special Features: Starter w/C306 bi-metal OLR
- Catalog Notes: Heater Packs must be purchased separately
- Warranty: Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Typical Applications
- Industrial Motor Control Centers
- Commercial and Industrial Electrical Installations
- Motor Circuit Protection
- Pump, Fan, and Compressor Motor Control
- New Construction and Motor Control Panel Retrofits
Why Eaton?
Eaton's Freedom line of NEMA motor starters is built for dependable motor protection in demanding industrial and commercial environments. With a rugged C306 bi-metal overload relay, this starter delivers consistent switching and overload performance backed by Eaton's Selling Policy 25-000 warranty coverage. Choose Eaton for code-compliant, reliable motor control equipment engineered for professional electrical installations.
Variant Specifications
| NEMA Size | Reset option | Amperage | Number of Phases | Horsepower | SKU |
|---|---|---|---|---|---|
| NEMA Size 2 | Standard | 9 amperes | 1 | Standard | AN16AN0AC |
| NEMA Size 2 | Standard | 18 amperes | 1 | Standard | AN16BN0AC |
| NEMA Size 1 | Standard - Auxiliary Contact | Standard | Standard | Standard | AN16DN0AB |
| NEMA Size 1 | Manual - With Auxiliary Contact | Standard | Standard | Standard | AN16DN0AB-R44 |
| NEMA Size 1 | NRV - No Auxiliary Contact | Standard | Standard | Standard | AN16DN0AB59-84 |
| NEMA Size 2 | Standard | 45 amperes | 3 | Standard | AN16GN0AB |
| NEMA Size 2 | Standard | 45 amperes | 1 | Standard | AN16GN0CB |
| NEMA Size 3 | Standard | 90 amperes | Standard | 25 horse power | AN16KN0A |
| NEMA Size 3 | Standard | 135 amperes | Standard | 40 horse power | AN16NN0A |
Manufacturer Resources
Product Specs
- Catalog Notes:
- Heater Packs must be purchased separately
- Department:
- Electrical
- Number Of Poles:
- Three-pole
- Product Type:
- Motor Starter
- Mounting Method:
- Horizontal
- Product Group:
- Starters & Contactors
Eaton AN16AN0AC – Frequently Asked Questions
1) Does the Eaton Freedom NEMA motor starter come with heater packs, or do I have to order them separately?
Heater packs are not included. Eaton's catalog notes state they must be purchased separately, so budget for them on every starter you order. Without the heaters sized to your motor's full load amps, the C306 bi-metal overload relay has no thermal element and the starter will not give you overload protection. Order the starter and the matching heater pack together so the panel can be commissioned in one trip.
2) What coil voltage does the Eaton Freedom AN16 starter use?
The coil is 120V at 60 Hz, or 110V at 50 Hz. That means it drops straight onto a standard 120V control circuit, which is what most North American motor control panels run off a control transformer. If your control circuit is 24V, 240V, or 480V, this starter is the wrong coil and you need a different catalog number.
3) Can I use this Eaton Freedom starter on a single-phase motor, or is it three-phase only?
Both are covered. The contactor is three-pole, and the range includes single-phase builds such as the 9 amp and 18 amp NEMA Size 2 units (AN16AN0AC and AN16BN0AC) and the 45 amp single-phase AN16GN0CB, alongside a three-phase 45 amp NEMA Size 2 unit, AN16GN0AB. Pick the phase count that matches the motor nameplate, because the overload element arrangement is not interchangeable between them.
4) Which NEMA size Freedom starter do I need for a 25 HP motor?
That is the NEMA Size 3 build, AN16KN0A, rated 90 amperes and listed at 25 horsepower. If the motor is larger, the other Size 3 option is AN16NN0A at 135 amperes and 40 horsepower. Size up from the motor nameplate amps, not from the horsepower alone, since service factor and duty affect the heater selection.
5) What is the difference between the Eaton AN16DN0AB, AN16DN0AB-R44, and AN16DN0AB59-84?
All three are NEMA Size 1 Freedom starters; the reset and auxiliary contact arrangement is what separates them. AN16DN0AB is the standard reset with an auxiliary contact. AN16DN0AB-R44 is manual reset with an auxiliary contact, which is what you specify when you do not want a motor restarting on its own after a trip. AN16DN0AB59-84 is the NRV build with no auxiliary contact. If your control scheme needs a run indication or an interlock back to a PLC, do not take the NRV version.
6) Can this Eaton Freedom starter reverse a motor?
No. This is a non-reversing starter, so it gives you one direction of rotation only. For a conveyor, hoist, or damper actuator that has to run forward and reverse, you need a reversing starter with two mechanically interlocked contactors. If the only issue is that the motor spins the wrong way on a three-phase feed, swap any two line leads instead of buying a reversing unit.
7) How does the Eaton Freedom starter mount in a control panel?
Mounting orientation is horizontal, so plan the subpanel layout and wireway runs with the starter sitting flat rather than turned on end. That matters when you are stacking several starters in a motor control panel or MCC bucket and need to leave room above and below for the overload relay and heater access.
8) What kind of overload protection does the C306 relay on the Eaton Freedom starter give a motor?
The C306 is a bi-metal thermal overload relay. It uses heater elements that warm under load and bend a bi-metal strip to open the control circuit when the motor draws too much current for too long, which covers stalled rotors, overloaded pumps, and jammed fans. It is a thermal device, not electronic, so it will not do phase loss or ground fault detection. Those need a separate solid-state relay.
9) Is this Eaton starter suitable for a retrofit in an existing motor control center?
It is built for exactly that, along with new motor control panels and general industrial and commercial electrical work. The typical loads are pumps, fans, and compressors. Before ordering, match three things off the existing unit: NEMA size, phase count, and the 120V/60 Hz control coil. Sizes 1, 2 and 3 are all available, from 9 amperes up to 135 amperes.
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Does the Eaton AN16AN0AC come with a warranty?
Absolutely. The Eaton AN16AN0AC is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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