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Allen Bradley Bulletin 509 509-DOB

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509-DOB

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The Allen Bradley 509-DOB is a non-reversing starter suitable for three-phase applications, featuring a NEMA size 3 configuration. This unit is designed to operate effectively in open-type environments and accommodates a variety of mounting options.

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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-DOB

ManufacturerAllen Bradley
Product TypeNon-Reversing Starter
Product LineBulletin 509
Part Number509-DOB
UPC781180218538
Weight13.00 lbs (5.90 kg)
Starter SizeNEMA 3
Overload TypeEutectic Alloy
Phase Type3 Phase
Enclosure TypeOpen Type
Mounting MethodPanel Mount
Number of N.O. Contacts1 N.O. Contact
Number of N.C. Contacts1 N.C. Contact
Installation Altitude1000 m
Relative Humidity5 to 95% (Non-Condensing)
Operating Temperature Range–25 to +55 °C
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The 509-DOB from Allen Bradley serves as a reliable non-reversing starter designed specifically for three-phase motor control. This device is categorized under NEMA size 3, making it suitable for demanding operational environments. It operates with an eutectic alloy overload type, providing effective protection against potential motor damage from overheating.

This starter is built in an open type enclosure, which allows for easy access and maintenance. For installation, the mounting method is panel mount, facilitating integration into various setups. The electrical configuration features a single normally open (N.O.) contact coupled with one normally closed (N.C.) contact. Such a configuration allows for versatile switching options within control systems.

The 509-DOB can be installed up to an altitude of 1000 meters and is capable of functioning in environments with a relative humidity between 5% and 95% without any risk of condensation affecting performance. Its operational temperature range is solid, functioning efficiently from -25°C to +55°C. These specifications make it an excellent choice for a wide array of industrial applications.