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Allen Bradley Bulletin 837 837-A61

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837-A61

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The 837-A61 temperature switch from Allen Bradley is a precisely engineered device that operates efficiently up to 600 volts AC. With a current rating of 5 amps, it is designed for remote bulb applications and features a robust stainless steel construction.

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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-A61

ManufacturerAllen Bradley
Product TypeTemperature Switch
Product LineBulletin 837
Part Number837-A61
Weight2.50 lbs (1.13 kg)
UPC781180287015
Voltage600V AC
Current5A
Style of DeviceRemote bulb and capillary
MaterialStainless steel
Capillary Length6 ft
Capillary Bend Radius50.8 mm
Bulb Length3.75 in
Control Circuit Rating (AC)125 VA
Control Circuit Rating (DC)57.5 VA
Contact ConfigurationSingle-pole, double-throw (SPDT)
ActionSnap-action
Operating Temperature–30…+66 °C
Storage Temperature–30…+93 °C
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The Allen Bradley 837-A61 is a temperature switch characterized by its remote bulb and capillary design. This model is capable of operating at voltage levels of 600 volts AC and can handle a current of up to 5 amps. Constructed from durable stainless steel, this device is tailored for reliability in tough environments.

The capillary tube measures 6 feet in length, offering flexibility for installation. It accommodates a minimum bend radius of 50.8 mm, facilitating effective placement in constrained spaces. Additionally, the bulb integrates at a length of 3.75 inches, contributing to the overall device functionality. Regarding control circuit ratings, it is rated at 125 VA for AC and 57.5 VA for DC applications, catering to various operational needs.

The 837-A61 features a single-pole, double-throw (SPDT) contact configuration, providing snap-action operation for quick response times. This temperature switch is effective across a temperature range, designed to operate efficiently from -30 to +66 degrees Celsius. For storage, it withstands even broader ranges, being functional up to +93 degrees Celsius, demonstrating its versatility in varying environmental conditions.