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Allen Bradley Bulletin 871U 871U-V5A18

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871U-V5A18

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The 871U-V5A18 from Allen Bradley is an inductive proximity switch designed for detection applications. Suitable for various environments, this model operates effectively within specific voltage ranges and is equipped with a straightforward wiring configuration.

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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-V5A18

ManufacturerAllen Bradley
Product TypeProximity Switch
Product LineBulletin 871U
Part Number871U-V5A18
Sensor TypeInductive Proximity Sensor
Sensing Distance5 mm
ShieldingShielded
Barrel Diameter18 mm
AC Operating Voltage Range15–132V AC
DC Operating Voltage Range11–52V DC
Output ConfigurationNormally Open Isolated Output
Wiring Configuration4-Wire operation
Connection TypePVC Cable
Cable Length3 m
Housing MaterialNickel-Plated Threaded Brass Barrel with Plastic Face
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The Allen Bradley 871U-V5A18 serves as an inductive proximity sensor, specifically designed for proximity detection in various applications. With a sensing distance of 5 mm, it is capable of detecting metallic objects efficiently. This unit features a barrel diameter of 18 mm and is designed with shielding to prevent electromagnetic interference, ensuring reliable operation.

The switch accommodates AC operating voltages ranging between 15 and 132 volts, while also supporting a DC voltage range of 11 to 52 volts. Its output is configured as a normally open isolated output, providing better control over connected circuits. The device is wired using a 4-wire setup, which facilitates straightforward installation.

Connection is made via a 3-meter PVC cable, allowing flexibility in placement during installation. The housing is constructed from a nickel-plated threaded brass material in combination with a plastic face, enhancing durability while maintaining effective functionality in diverse operational environments.