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Allen Bradley Bulletin 509 509-DOA-A2K

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509-DOA-A2K

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The 509-DOA-A2K from Allen Bradley is classified as a full voltage non-reversing starter. It functions effectively with a control supply voltage range of 220 to 240 volts AC. This unit has a continuous current rating of 90 amperes and operates at a rated frequency of 50 to 60 Hertz.

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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-DOA-A2K

ManufacturerAllen Bradley
Product TypeFull Voltage Non-Reversing Starter
Product LineBulletin 509
Part Number509-DOA-A2K
Weight10.00 lbs (4.54 kg)
Rated Control Supply Voltage220 to 240 Volts AC
Continuous Current Rating90 Amperes
Coil Operating Limits85 to 110%
Release ClassClass 30
NEMA SizeNEMA Size 3
Heat Dissipation10 Watts
Electrical Connection TypeScrew connection
Enclosure TypeOpen-type enclosure
Input Phase Rating3-phase
Type of Motor StarterDirect online starter (DOL)
Service Limit Current Rating104 Amperes
Average Operating Time37 milliseconds (pick-up), 20 milliseconds (drop-out)
Rated Frequency50 to 60 Hertz
Circuit Closing Inrush Current Peak Including Offset947 Amperes (maximum)
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The Allen Bradley 509-DOA-A2K is a full voltage non-reversing starter suitable for various industrial applications. Designed for continuous operation, it maintains a current rating of 90 Amperes with a service limit of 104 Amperes. Operating at a control supply voltage of 220 to 240 volts AC, this starter has coil operating limits set between 85% and 110%, providing flexibility in voltage operations. Users benefit from a direct online (DOL) starter configuration, ensuring efficient motor control. The device functions effectively with a rated frequency of 50 to 60 Hertz.

The starter's electrical connections utilize a screw connection type, enabling secure and reliable wiring. Its enclosure type is open, suitable for indoor installations. For heat management, this model dissipates approximately 10 Watts during operation. The average operating times for this starter are 37 milliseconds for pick-up and 20 milliseconds for drop-out. Furthermore, the circuit closing inrush current peak can reach a maximum of 947 Amperes, accommodating significant electrical demands at start-up. This unit falls under NEMA size 3 and is classified under Class 30 for its release characteristics, offering effective thermal protection under varied operational conditions.