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Allen Bradley Bulletin 500 Accessories W47

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W47

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The W47 thermal overload relay heater element from Allen Bradley is designed for use in various control systems. This eutectic alloy heater ensures reliable performance with full load amperage ratings compatible with specific controller sizes.

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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 W47

ManufacturerAllen Bradley
Product TypeThermal Overload Relay Heater Element
Product LineBulletin 500 Accessories
Part NumberW47
Weight0.13 lbs (0.06 kg)
UPC781180154034
Heater Element TypeW (Eutectic Alloy)
Trip Class20
Size 00–0 Full Load Amperes (FLA)6.33 A
Size 1 Full Load Amperes (FLA)6.28 A
Rated Voltage Compatibility600 V AC
Relay Class ComplianceNEMA ICS 2, Part 4
Overload Relay TypeEutectic Alloy Overload Relay
Trip Time at 600% Rated Current (Class 20)≤ 20 seconds
Trip Time at 600% Rated Current (Class 10)Not applicable (Type J only)
Trip Time at 600% Rated Current (Class 30)Not applicable (Type WL only)
Motor Duty CompatibilityContinuous duty motors with service factor ≥ 1.15
Controller Size CompatibilitySize 00, Size 0, Size 1
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Model W47 from Allen Bradley's Bulletin 500 Accessories is a thermal overload relay heater element crafted to enhance system safety. This unit employs a eutectic alloy for optimal functionality and is designed to handle specific full load amperes. It has a rating of 6.33 A for sizes 00 to 0 and 6.28 A for size 1, ensuring compatibility across various motor applications. The W47 heater element operates effectively within a voltage capacity of 600 V AC.

Compliance with NEMA ICS 2, Part 4 standards indicates robust specifications and reliability. This heater element is categorized under a trip class of 20, featuring a swift trip time of 20 seconds or less when subjected to a current at 600% of its rated capacity. It is critical to note that trip times differ for other class types, such as Class 10 and Class 30, where specified conditions apply.

This component is best suited for continuous duty motors that maintain a service factor of greater than or equal to 1.15. It offers compatibility with controller sizes of 00, 0, and 1, ensuring it can integrate into a range of existing systems efficiently. The unique aspect of the W47 is its UPC of 781180154034, which aids in inventory tracking and identification, providing an added in-depth specification for users.