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Description

The Reliance Electric 413366-AH is a replacement brake coil for the Unibrake series of electromagnetic motor brakes, manufactured by Reliance Electric (now part of ABB/Baldor). This coil is also referenced without the hyphen as 413366AH. Refer to manufacturer documentation to confirm compatibility with your specific application.

This coil is rated for 230/460V AC operation and is designed to energize the electromagnet assembly in Reliance Unibrake magnetic disc brakes, releasing the spring-set friction disc to allow shaft rotation. The coil wire is rated at 600V insulation and 125 degrees C temperature class, meeting wire specification FT1/MIL-W-16878/16. It is a drop-in service component intended to restore brake function in existing Unibrake assemblies without replacing the entire brake unit.

Technical Specifications

Brand: Reliance Electric (Baldor / ABB)
MPN: 413366-AH
Also Referenced As: 413366AH
Type: Replacement Brake Coil
Product Family: Unibrake
Coil Voltage: 230/460V AC
Wire Insulation Voltage Rating: 600V
Wire Temperature Rating: 125 degrees C
Wire Specification: FT1 / MIL-W-16878/16
Country of Manufacture: United States

Condition: New — Open Box. Sourced from manufacturing MRO turnover, plant closures, and industrial surplus; the part is new and unused but may have been in storage for years. Packaging may show shelf wear or be missing. Boxes have some shelf wear, but contents are new.

Shipping & Handling

Domestic shipping via USPS Ground Advantage, USPS Priority Mail, or UPS Next Day Air. Cost is calculated at checkout based on your location. We ship within 1 business day.
International shipping is offered through the eBay International Shipping program.
Local pickup is available — message us ahead of time to coordinate.
UPS Next Day Air orders: Cutoff is 2pm Eastern for guaranteed same-day shipout. We can usually work later orders in if we know they're coming, so message us — we just can't work magic every time.
Shipping on your own UPS or FedEx account? No problem. This package ships at approximately 8.00 × 6.00 × 4.00 inches and 2.00 lb 4.00 oz. Send a message before checkout with your account number and shipping method.

Returns

We offer free returns through eBay's standard 30-day return policy. If something isn't right, message us first — we want to make it right and we'll work with you to do it.

About ACME MRO Solutions

We started ACME MRO Solutions to fix something we kept running into as contractors — plants down, parts slow, surplus listings you couldn't trust. Our goal is simple: get YOU the right component fast, with an honest description, so you can get back to running.

We describe what we see. Used items show signs of use; if a part has visible wear, damage, or a missing component, the condition description will say so. We don't claim anything is tested unless we tested it — and we don't bench-test parts where testing isn't practical or revealing (feed-through modules, breakers, mechanical components). When we do test something, we'll say so explicitly.

If something is our fault, we don't work through it — we make it right. We are proud to serve American manufacturing. Your uptime is our bottom line.

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Questions? Talk to us.

Send a message through eBay. During business hours we typically respond within the hour. Whether you need to confirm compatibility before buying, request additional photos, ask about a cross reference, or work through something after delivery — message first and we'll figure it out together.