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Allen Bradley Bulletin 509 509-BOB-A1G

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509-BOB-A1G

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The 509-BOB-A1G non-reversing starter from Allen Bradley is engineered for robust performance in various applications. Rated as a full-voltage starter, it has an open-type enclosure that allows for adequate airflow and cooling. Designed to support top-wired contactors, it operates effectively in a vertical orientation at elevations of up to 10,000 feet without derating.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 509-BOB-A1G

ManufacturerAllen Bradley
Product TypeNon-Reversing Starter
Product LineBulletin 509
Part Number509-BOB-A1G
Weight3.75 lbs (1.70 kg)
Full-Voltage StarterYes
Feed-Through ConstructionYes
EnclosureOpen-Type
Top-Wired ContactorSupported
NEMA SizeSize 1
Nominal Coil Voltage at 50 Hz440 Volts
Nominal Coil Voltage at 60 Hz480 Volts
Operating PositionVertical
Operating Temperature-25 to 55 degrees Celsius
Operating Altitude10,000 feet without derating
Corrosion-ResistantYes
MountableYes
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The Allen Bradley 509-BOB-A1G is a non-reversing starter, ideal for applications requiring reliable motor control without the need for direction reversal. This unit falls under the Bulletin 509 series, characterized by its full-voltage starting capability. Its open-type design allows for unhindered airflow, maximizing heat dissipation and enhancing the performance of the starter.

The starter incorporates a feed-through construction to allow wiring access from multiple directions, which simplifies installation and maintenance. It supports top-wiring contacts, enabling efficient electrical connections tailored for various setups. With a NEMA size rating of 1, the 509-BOB-A1G can accommodate a range of motor sizes in an industrial context.

Designed to function with a nominal coil voltage of 440 volts at 50 Hz, or 480 volts at 60 Hz, this starter can integrate seamlessly into diverse electrical networks. Operation can occur in vertical positions, which adds flexibility in how it can be mounted. Additionally, the unit's operational altitude can reach 10,000 feet without requiring derating, enhancing its utility in varied environmental conditions.

This non-reversing starter is built to endure temperature ranges between -25 to 55 degrees Celsius and is corrosion-resistant, contributing to its durability over time. Overall, the Allen Bradley 509-BOB-A1G is mountable, robust, and well-suited for various installations, offering reliable performance for electric motor control operations.