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Allen Bradley Bulletin 500 Accessories W55

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W55

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The W55 is an overload relay heater element from Allen Bradley's Bulletin 500 Accessories series. This component, made from eutectic alloy, is designed for trip class 20 and comes in sizes 00, 1, and 2, capable of handling full load amperages ranging from 13.6 to 13.8 A depending on the size.

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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 W55

ManufacturerAllen Bradley
Product TypeOverload Relay Heater Element
Product LineBulletin 500 Accessories
Part NumberW55
UPC781180154324
MaterialEutectic Alloy
Trip ClassClass 20
SizeSize 00, 1, and 2
Full Load Amps at Size 0013.6 A
Full Load Amps at Size 113.7 A
Full Load Amps at Size 213.8 A
Minimum Operating Temperature0°C
Maximum Operating Temperature40°C
Minimum Storage Temperature-20°C
Maximum Storage Temperature65°C
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The Allen Bradley W55 serves as a specific overload relay heater element within the Bulletin 500 Accessories range. This component is comprised of eutectic alloy, known for its thermal properties and reliability in performance.

This heater element is classified under trip class 20 and is available in three sizes: 00, 1, and 2. Each size accommodates specific full load currents: 13.6 Amps for size 00, 13.7 Amps for size 1, and 13.8 Amps for size 2, providing accurate protection and operation based on the connected motor's requirements. The operational environment for the W55 mandates a minimum operating temperature of 0°C and a maximum operating temperature of 40°C, ensuring stable function across typical working conditions.

The W55’s storage capabilities extend from -20°C to a maximum of 65°C, making it suitable for various placement scenarios without degrading performance. This relay heater element is essential for effective overload protection in different motor applications, contributing greatly to reliability and safety in electrical systems.