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Allen Bradley Bulletin 500 Accessories W38

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W38

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The Allen Bradley W38 is a thermal overload relay heater element designed for effective motor protection. Operating with a frequency rating of 50/60 Hz, it supports a control circuit voltage of up to 600 V AC and is suited for three-pole configurations.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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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 W38

ManufacturerAllen Bradley
Product TypeThermal Overload Relay Heater Element
Product LineBulletin 500 Accessories
Part NumberW38
Weight0.06 lbs (0.03 kg)
UPC781180153822
Frequency Rating50/60 Hz
Control Circuit Voltage Compatibility600 V AC
Number of Poles3
Mounting TypeInsert into overload relay block
Reset TypeManual reset
Heater Element SeriesType W
Full Load Amp Rating (Size 1)2.60 A
Full Load Amp Rating (Size 00–0)2.59 A
Frame Size CompatibilitySize 00–0, Size 1
Trip ClassClass 20
Heater Element TypeEutectic alloy
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The W38 thermal overload relay heater element from Allen Bradley serves an essential role in safeguarding motors against overload conditions. Designed for flexibility, it operates at a frequency of 50/60 Hz and handles control circuit voltages up to 600 V AC. The heater element accommodates three poles, allowing integration into various motor protection applications.

This component features a robust mounting design that allows it to easily insert into an overload relay block, simplifying installation and maintenance. The manual reset feature ensures that the unit can be easily reset after a trip condition has occurred. The W38 belongs to the Type W heater element series and is compatible with frame sizes ranging from 00 to 1.

In terms of performance, the full load amp rating for Size 1 is set at 2.60 A, while for Sizes 00 and 0, it is slightly lower at 2.59 A. These ratings ensure that the heater element operates efficiently within specified limits. The trip class is rated at Class 20, which allows it to react appropriately under overload situations. Constructed from eutectic alloy, the heater element delivers reliable thermal response, making it a crucial component in protecting motors and ensuring operational safety.