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Allen-Bradley 509-DOD
by Allen-Bradley
Read verified buyer reviews ↓OverviewThe Allen-Bradley 509-DOD is a robust NEMA-rated full voltage non-reversing starter, specifically designed for the efficient and secure direct-on-line operation of AC induction motors. This Size 3 starter serves as a crucial component for industrial settings demanding consistent motor management and safeguarding. Meticulously engineered, it incorporates a 115-120V 60Hz coil for standard power compatibility and an essential eutectic alloy overload relay to shield motors from potentially damaging overcurrents. As an open-type device, the 509-DOD is ideal for integration within a protective enclosure, offering installation flexibility while ensuring peak performance and longevity in diverse demanding environments. This starter exemplifies Allen-Bradley's dedication to superior quality and lasting durability, providing a trustworthy solution for your motor control necessities.Key Features NEMA Standard Adherence: Complies with precise NEMA guidelines, guaranteeing proven operation, interchangeability, and sturdy construction. Seamless Direct-on-Line Functionality: Enables full voltage non-reversing motor starting, delivering straightforward and effective unidirectional control. Optimized Size 3 Capacity: Tailored for particular motor applications, achieving an optimal balance between physical dimensions and operational capability. Standardized 115-120V AC Coil: Equipped with a reliable 115-120V AC, 60Hz coil, ensuring compatibility with standard industrial control setups. Advanced Eutectic Alloy Overload Protection: Features a high-performance eutectic alloy overload relay for precise and dependable thermal protection against motor overloads. Adaptable Open-Type Design: Configured as an open-type starter, allowing for flexible mounting within an appropriate enclosure for enhanced environmental and personnel safety. Technical SpecificationsThe Allen-Bradley 509-DOD is a precision-engineered magnetic starter crafted for superior motor control. Product Type: Full Voltage Non-Reversing Starter / Magnetic Starter Catalog Number: 509-DOD NEMA Size: 3 Coil Voltage: 115-120V AC, 60Hz Overload Relay Type: Eutectic Alloy Enclosure Type: Open Type (Requires separate enclosure for protection) ApplicationsThe Allen-Bradley 509-DOD non-reversing starter is a highly adaptable component crucial for various industrial applications, ensuring reliable motor control in: Direct-on-line activation and deactivation of essential AC induction motors. Regulating and protecting pumps in water treatment, HVAC systems, and manufacturing facilities. Managing fans in ventilation setups, industrial cooling systems, and air handling units. Operating conveyor mechanisms for material conveyance in warehousing and logistics. Automating diverse machinery and processes that require single-direction motor operation. Why Choose This Model?The Allen-Bradley 509-DOD stands out as a top choice for professionals seeking robust and dependable motor control solutions due to: Exceptional Reliability: Constructed with Allen-Bradley's renowned quality, ensuring lasting performance and minimal downtime. Superior Motor Safeguarding: The integrated eutectic alloy overload relay delivers vital thermal protection, extending motor lifespan and preventing costly failures. NEMA Standard Compliance: Guarantees adherence to industry-recognized standards for performance and dimensional consistency. Economical Solution: Offers an excellent blend of advanced features and competitive pricing, providing substantial value for your investment. Simple Integration: Its open-type configuration allows for effortless integration into existing or new control panels, offering installation flexibility. Trusted Brand Heritage: Benefit from the confidence that comes with selecting a product from Allen-Bradley, a global leader in industrial automation. Order NowEnhance your industrial control systems with the Allen-Bradley 509-DOD NEMA Size 3 Full Voltage Non-Reversing Starter. Experience reliable performance, superior motor protection, and the trusted quality of Allen-Bradley.FAQWhat is the primary function of the Allen-Bradley 509-DOD?Its main purpose is to provide direct-on-line starting and stopping for AC induction motors, along with essential overload protection.What NEMA size is this starter?The 509-DOD is a NEMA Size 3 motor starter.Does this starter come with an enclosure?No, it is an open-type device and requires a separate enclosure for protection and safe operation.What type of overload protection does it offer?It features a eutectic alloy overload relay for precise and dependable thermal protection against motor overloads.What is the coil voltage requirement for the 509-DOD?It requires a 115-120V AC, 60Hz coil for operation.
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Allen-Bradley 509-DOD
Overview
This is a genuine Allen-Bradley component. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.
Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.
Key Features
- Genuine Allen-Bradley catalog part
- Tested before shipment
- Backed by PalmPartsSolution warranty
- Cross-reference and revision assistance available
- Compatible with the broader Allen-Bradley automation ecosystem
Compatibility
When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Allen-Bradley equipment. Where applicable, confirm:
- Input/output voltage and current rating
- Communication protocol and network role
- Mounting form factor and footprint
- Operating temperature, humidity, and IP rating
- Required certifications (UL, CE, ATEX, marine, etc.)
Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.
Replacement Information
Three ways to source this part through PalmPartsSolution:
- Exact replacement — same Allen-Bradley catalog number, new or refurbished, tested and warrantied
- Form-fit-function equivalent — alternate revision or build that drops in without code changes
- Engineered migration — current-generation Allen-Bradley platform with documented conversion notes
Contact our engineering team if you need help choosing between these tracks.
Technical Specifications
The Allen-Bradley 509-DOD is a precision-engineered magnetic starter crafted for superior motor control.
- Product Type: Full Voltage Non-Reversing Starter / Magnetic Starter
- Catalog Number: 509-DOD
- NEMA Size: 3
- Coil Voltage: 115-120V AC, 60Hz
- Overload Relay Type: Eutectic Alloy
- Enclosure Type: Open Type (Requires separate enclosure for protection)
Applications
The Allen-Bradley 509-DOD non-reversing starter is a highly adaptable component crucial for various industrial applications, ensuring reliable motor control in:
- Direct-on-line activation and deactivation of essential AC induction motors.
- Regulating and protecting pumps in water treatment, HVAC systems, and manufacturing facilities.
- Managing fans in ventilation setups, industrial cooling systems, and air handling units.
- Operating conveyor mechanisms for material conveyance in warehousing and logistics.
- Automating diverse machinery and processes that require single-direction motor operation.
Why Choose the 509-DOD?
The Allen-Bradley 509-DOD stands out as a top choice for professionals seeking robust and dependable motor control solutions due to:
- Exceptional Reliability: Constructed with Allen-Bradley's renowned quality, ensuring lasting performance and minimal downtime.
- Superior Motor Safeguarding: The integrated eutectic alloy overload relay delivers vital thermal protection, extending motor lifespan and preventing costly failures.
- NEMA Standard Compliance: Guarantees adherence to industry-recognized standards for performance and dimensional consistency.
- Economical Solution: Offers an excellent blend of advanced features and competitive pricing, providing substantial value for your investment.
- Simple Integration: Its open-type configuration allows for effortless integration into existing or new control panels, offering installation flexibility.
- Trusted Brand Heritage: Benefit from the confidence that comes with selecting a product from Allen-Bradley, a global leader in industrial automation.
Availability & Shipping
- ▸In stock: 509-DOD ready for immediate dispatch from our Florida warehouse.
- ▸Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
- ▸Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
- ▸Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
- ▸Buy with confidence: Every 509-DOD ships with a 1-Year PALM Parts warranty and a 30-day return window.
Frequently Asked Questions — Allen-Bradley
Machine down? We ship parts the same day.
New, surplus, and refurbished Allen-Bradley inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.
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Independent Supplier Notice
PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.
Product Condition & Firmware
All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.