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Allen Bradley Bulletin 871U 871U-V8B18

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871U-V8B18

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The 871U-V8B18 inductive proximity sensor from Allen Bradley is designed for reliable sensing applications. It operates under AC or DC voltage supplies and boasts an 8 mm sensing distance, providing precision in detection tasks.

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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 871U-V8B18

ManufacturerAllen Bradley
Product TypeInductive Proximity Sensor
Product LineBulletin 871U
Part Number871U-V8B18
Weight0.63 lbs (0.28 kg)
Sensing Distance8 mm
Output TypeIsolated output
Supply TypeAC/DC
Rated Current50 mA
Operating Humidity80% max. (non-condensing)
Storage Humidity80% max. (non-condensing)
Storage Temperature Range0 to 40 °C
Installation Altitude1000 meters above sea level
Min. Operating Temperature0 °C
Max. Operating Temperature40 °C
Sensing PrincipleInductive proximity switch

The Allen Bradley 871U-V8B18 is an inductive proximity sensor designed for diverse applications in industrial automation. With a sensing distance of 8 mm, it employs inductive technology to detect the presence of metallic objects accurately. This unit is flexible in terms of power supply, as it can operate with either AC or DC inputs.

This sensor features an isolated output type and handles a rated current of 50 mA, making it reliable for various control systems. Operating temperature is maintained between 0 °C and 40 °C, ensuring functionality in standard conditions. Humidity is also a consideration, as the 871U-V8B18 can withstand operating and storage humidity levels up to 80% without condensation.

For installation in varying conditions, this sensor can be set up at altitudes of up to 1000 meters above sea level, allowing for adaptability in different environments. In terms of storage, temperatures between 0 and 40 °C are recommended to maintain optimal performance. The combination of these features makes the 871U-V8B18 suitable for many demanding applications, providing consistency and accuracy in sensing.