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Allen Bradley 592 Overload Relays W72

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W72

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The 592 Series W72 heater element from Allen Bradley is engineered for use as an overload relay. This unit features a eutectic alloy design and operates within a trip class of 20, supporting effective overload protection.

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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 W72

ManufacturerAllen Bradley
Product TypeOverload Relay Heater Element
Product Line592 Overload Relays
Part NumberW72
UPC781180512797
Trip ClassClass 20
Heater Element TypeEutectic alloy
Full Load Current Range56 Amperes at Size 2, 67 Amperes at Size 3, and 72 Amperes at Size 4
CompatibilityBulletin 500 Series line starters
Reset TypeManual reset
Timing RangeClass 20
Maximum Current312 Amperes
Method of MountingScrew mount
Recommended Operating AltitudeUp to 6,561 feet (2,000 meters) above sea level
Operating Temperature Range0 to 40°C (32 to 104 °F)
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The model W72 overload relay heater element falls within the 592 series by Allen Bradley. It functions primarily as an integral part of an overload relay system, providing essential protection to electrical circuits. Constructed from a eutectic alloy, this heater element supports reliable performance under various conditions. The trip class designated for this component is Class 20, ensuring proper calibration for standard applications. Adaptability is a highlight; the W72 accommodates full load currents of 56 amperes (Size 2), 67 amperes (Size 3), and up to 72 amperes (Size 4). The device is engineered to handle a maximum current of 312 amperes, aligning with the demands of robust industrial systems.

Installation is straightforward, employing a screw mount method, and it is designed to function efficiently within altitude limits of 6,561 feet (2,000 meters) above sea level. Furthermore, the W72 operates effectively within an ambient temperature range of 0 to 40 degrees Celsius (32 to 104 degrees Fahrenheit), making it suitable for numerous environments. The manual reset feature simplifies operation, allowing for quick recovery after an overload situation. Overall, this heater element is a well-suited choice for enhancing the protection of machinery using Bulletin 500 series line starters.