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Allen Bradley Bulletin 500 Accessories W70

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W70

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The W70 heater element, part of Allen Bradley's Bulletin 500 Accessories, functions as a component specifically designed for overload relays. It caters to different sizes and provides effective protection against overload conditions.

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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 W70

ManufacturerAllen Bradley
Product TypeHeater Element for Overload Relay
Product LineBulletin 500 Accessories
Part NumberW70
UPC781180154836
Trip ClassClass 20
SizeSize 2, 3, or 4
Full Load Amp at Size 248.5 A
Full Load Amp at Size 358 A
Full Load Amp at Size 461 A
MaterialEutectic Alloy
Minimum Operating Temperature0°C
Maximum Operating Temperature40°C
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The W70 heater element from Allen Bradley serves a crucial role in overload relay protection as part of the Bulletin 500 Accessories series. This component is essential for ensuring the safety and reliability of electrical circuits by preventing overload conditions. It is constructed from eutectic alloy, providing durability and efficiency.

This heater element is specifically categorized under Class 20 for trip mechanisms, indicating its suitability for various operational parameters. It is available in sizes 2, 3, and 4, allowing for flexibility in selecting the appropriate model based on requirements. The full load ampacity for each size is distinctly defined: size 2 can manage up to 48.5 A; size 3 supports 58 A; and size 4 accommodates a maximum load of 61 A.

The operational parameters for the W70 element specify a minimum temperature of 0°C, ensuring it functions effectively in standard conditions. Meanwhile, the maximum operating temperature is capped at 40°C, further defining its functional limits. Thus, the W70 heater element is a vital component in maintaining circuit integrity and safeguarding against overload failures.