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Allen Bradley Bulletin 871P 871P-D20BP40-D4

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871P-D20BP40-D4

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The 871P-D20BP40-D4, part of the Allen Bradley Bulletin 871P series, is an inductive proximity sensor designed for precision detection in various applications. Featuring a sensing distance of 20 mm, it operates within a voltage range of 10 to 30V DC, utilizing a shielded configuration for enhanced reliability.

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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 871P-D20BP40-D4

ManufacturerAllen Bradley
Product TypeInductive Proximity Sensor
Product LineBulletin 871P
Part Number871P-D20BP40-D4
Housing StyleRectangular
Sensor TypeInductive Proximity
Sensing Distance20 mm
Shielding TypeShielded
Output TypePNP
Number of N.O. Contact1 N.O. Contact
Number of N.C. Contact1 N.C. Contact
Operating Voltage10...30V DC
Connection TypeM12 DC Micro Quick-Disconnect
IP RatingIP67 / IP68 / IP69K
Housing MaterialPlastic
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The Allen Bradley 871P-D20BP40-D4 functions as an inductive proximity sensor, essential for non-contact detection within industrial and automation systems. Its rectangular housing accommodates a sensing distance of 20 mm, effectively detecting metallic objects without physical contact.

Designed with shielded technology, this sensor minimizes interference, ensuring consistent operation. It utilizes a PNP output, which is reliable for various applications requiring non-contact sensing. The device includes one normally open (N.O.) contact and one normally closed (N.C.) contact, providing versatile options for triggering control circuits.

This sensor operates over a voltage range of 10 to 30V DC, allowing for compatibility with diverse control systems. The connection type is designed for ease of integration, with an M12 DC micro quick-disconnect feature facilitating rapid installation and maintenance. Its robust construction is made from plastic, contributing to its durability and lightweight properties.

Moreover, the device carries an IP rating of IP67, IP68, and IP69K, certifying its resistance to dust and moisture ingress, and enabling it to function reliably in harsh environments. Overall, the 871P-D20BP40-D4 sensor is suitable for a variety of applications, ensuring effective detection in automated processes.