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Allen Bradley Bulletin 509 509-DOA

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509-DOA

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The 509-DOA from Allen Bradley is designed as a non-reversing full-voltage motor starter, offering significant capabilities for three-phase motors. With a continuous current rating of 90 amperes and a maximum service limit of 104 amperes, this starter effectively manages high-demand applications.

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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

ManufacturerAllen Bradley
Product TypeNon-reversing Full-Voltage Motor Starter
Product LineBulletin 509
Part Number509-DOA
UPC781180218491
Weight14.06 lbs (6.38 kg)
Continuous Current Capacity90 A
Service Limit Current Capacity104 A
Peak Inrush Current Capability947 A
Control Coil Voltage Rating220 V at 50 Hz, 240 V at 60 Hz
Motor Starting MethodDirect-On-Line (DOL)
Three-Phase Motor Power Rating30 hp at 230 V
Built-in Auxiliary Contact1 Normally Open (1 NO)
Main Circuit Wire Connection TypeScrew Terminal
Control Circuit Wire Connection TypeScrew Terminal
Steady-State Heat Loss10 W for 4-Pole or 5-Pole Units
Coil Voltage Tolerance85% to 110% of Rated Voltage
Sealed Coil VA Consumption58 VA at 60 Hz
Capacitor Bank Switching Capacity67 kVAR at 575 V Three-Phase
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The Allen Bradley 509-DOA is a robust non-reversing full-voltage motor starter tailored for applications requiring direct power to three-phase motors. This model operates efficiently with a continuous current capacity of 90 A, making it suitable for handling substantial loads. In terms of peak performance, it can manage an impressive inrush current of 947 A, ensuring reliable startups for demanding motor applications.

Designed to support service limit currents up to 104 A, the 509-DOA is highly effective for different operational conditions. The control coil operates at specific voltage ratings—220 V at 50 Hz and 240 V at 60 Hz—providing versatility in various electrical configurations. Its motor starting method follows the direct-on-line (DOL) principle, which is common in many industrial scenarios.

This unit is engineered to handle a three-phase power rating of 30 hp at 230 V, ensuring compatibility with a wide range of motor sizes. Additionally, it features a built-in auxiliary contact configured as one normally open (1 NO) contact. For installation, the main and control circuit wiring connections utilize screw terminals, simplifying the setup process.

The steady-state heat loss associated with this motor starter is rated at 10 W for both 4-pole and 5-pole configurations. This contributes to its efficiency, ensuring minimal energy waste during operation. The coil voltage tolerance ranges from 85% to 110% of the rated voltage, providing additional reliability under varying conditions.

Moreover, the sealed coil consumes 58 VA at 60 Hz, helping maintain energy usage within acceptable limits. Finally, it has the capacity for capacitor bank switching up to 67 kVAR at 575 V in three-phase systems, making it a versatile choice for controlling power factors in reactive load scenarios.