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Allen Bradley Bulletin 837 837-A4J

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837-A4J

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The 837-A4J is an electromechanical temperature switch designed for precise temperature control. It features a dual-functioning configuration that allows for effective operation within an extensive temperature range and is certified under multiple standards.

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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 837-A4J

ManufacturerAllen Bradley
CategoryMotors
Product LineBulletin 837
Part Number837-A4J
UPC781180143977
Weight3.38 lbs (1.53 kg)
ProductElectro-Mechanical Temperature Switch
Operating Temperature Range80-190 degrees Fahrenheit
Maximum Temperature240 degrees Fahrenheit
Bulb Length8.5 inches
Amperage125 VA at 24-600V AC, 57.5 VA at 115-230V DC
Contact ConfigurationSingle-Pole Double-Throw (SPDT)
Enclosure TypeNEMA 4 and 13 metallic
Certification StandardsCE, CSA, UL
StyleStyle A (Remote Bulb and Capillary)
Minimum Adjustable Differential Range14 to 54 degrees Fahrenheit
Mid. Adjustable Differential Range7 to 45 degrees Fahrenheit
Maximum Adjustable Differential Range3 to 20 degrees Fahrenheit
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The 837-A4J model from Allen Bradley’s Bulletin 837 series is an electro-mechanical temperature switch that provides reliable temperature regulation in numerous settings. It functions efficiently within an operating temperature range of 80 to 190 degrees Fahrenheit, with a peak maximum temperature of 240 degrees Fahrenheit.

The device features an 8.5-inch bulb, allowing for optimal placement in different environments. The amperage ratings are 125 VA for 24-600V AC and 57.5 VA for 115-230V DC. Its configuration is Single-Pole Double-Throw (SPDT), which enhances its versatility and control capabilities.

With respect to adjustable differential settings, the 837-A4J offers a minimum range of 14 to 54 degrees Fahrenheit and an intermediate range of 7 to 45 degrees Fahrenheit. The maximum differential adjustment range is between 3 to 20 degrees Fahrenheit, providing flexibility according to specific application requirements.

This unit is constructed with a robust metallic enclosure that adheres to NEMA Type 4 and 13 standards, ensuring durability in demanding environments. The switch also complies with necessary certification standards, including CE, CSA, and UL, confirming its suitability for various industrial and commercial applications. The style classification is Style A, which features a remote bulb and capillary design, further enhancing its functional capacity.