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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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Allen-Bradley Motor Starter 509-AOB

$299.00 USD

Sale Sold out

ConditionSurplus - Untested MPN509-AOB Stock #0426-02112

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 10.0 lbs

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The Allen-Bradley 509-AOB is a Bulletin 509 full voltage magnetic motor starter rated for NEMA Size 0 applications. The nameplate confirms CAT 509-AOB, Series B, with a continuous rating of 18 amps at 600VAC maximum. The unit is configured for three-phase operation with three line terminals (L1, L2, L3) and three load terminals (T1, T2, T3). A coil voltage label visible on the assembly indicates 115-120V AC. Published specifications for the 509-AOB describe an open-type construction with a 3-pole contactor, one normally open auxiliary contact, and a eutectic alloy overload relay. The overload relay section features a visible RESET button and a TRIPPED indicator, consistent with Allen-Bradley Bulletin 592 series overload relay integration. Maximum motor ratings per nameplate data include 3 HP at 200V and 3 HP at 230V for three-phase two-pole configurations, and 1 HP at 115V for single-phase two-pole use. The 509-AOB is part of Allen-Bradley's legacy NEMA motor control lineup and has been out of active production for many years, making used and surplus examples the primary source for replacement or spare inventory. Two short wire leads are attached to the auxiliary contact terminals as found.

Stock # 0426-02112

Please Note: This unit is surplus inventory, sold as-is from MRO Exchange surplus stock. Allen-Bradley is a trademark of Rockwell Automation, Inc. MRO Exchange is an independent reseller and is not an authorized distributor of Rockwell Automation. Product may differ from units available through authorized distributors in date code, country of origin, packaging, accessories, or firmware revision. The warranty from the manufacturer does not apply.

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.