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Allen Bradley Bulletin 505 505-AAB

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505-AAB

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The 505-AAB from Allen Bradley is a reversing starter with a Type 1 enclosure, suitable for a variety of motor control applications. It operates with an AC coil and supports continuous currents of up to 18 A, with a peak inrush capability rated at 140 A.

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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 505-AAB

ManufacturerAllen Bradley
Product TypeReversing starter
Product LineBulletin 505
Part Number505-AAB
Weight18.00 lbs (8.16 kg)
UPC781180169274
Enclosure RatingType 1
Actuation Voltage TypeAC coil
Overload ProtectionEutectic relay
Rated Continuous Current18 A
Service-Limit Current21 A
Peak Inrush Capability140 A
Operating Voltage (Load)460 V
Motor Power Rating5 hp
Coil Operating Band85–110%
Coil VA (Sealed)29 VA
Reset CapabilityExternal reset

The 505-AAB model from Allen Bradley is a reversing starter tailored for efficient motor control. This unit features an enclosure rating of Type 1, which protects against incidental contact and dust ingress. Designed for operation with an AC coil, the 505-AAB is capable of continuously handling currents up to 18 A, making it suitable for various applications.

In situations where higher currents are experienced, the starter can cope with a service-limit current of 21 A. The starter also boasts a peak inrush capability of 140 A, ensuring it can manage the initial demands from motor start-ups. The device operates effectively at a load voltage of 460 V and supports motors rated at up to 5 horsepower.

To protect against overload conditions, this reversing starter incorporates a eutectic relay that provides reliable thermal protection. The coil has an operating band specification of 85–110%, ensuring proper performance under varying voltage conditions. The starter’s sealed coil has a VA rating of 29, promoting efficient energy use. An external reset capability adds convenience for maintenance and operational control, enabling users to quickly reset the device when necessary.