Allen-Bradley 871P-D20BP40-D4 is a tubular inductive proximity sensor from the Bulletin 871P family. This DC-powered sensor features a 20mm nominal sensing range, a PNP normally open (NO) solid-state output, and a 4-pin M12 micro quick-disconnect connector. Designed for non-contact detection of metallic objects, it is suitable for industrial automation applications requiring reliable position sensing.

Capacitive Proximity Sensor The **Allen Bradley 871P-D20BP40-D4 Proximity Sensor** is a high-performance capacitive sensor designed to enhance automation processes in various industrial applications. Engineered for reliability and precision, this sensor detects the presence of objects without direct contact, making it ideal for detecting non-metallic materials such as liquids and bulk solids. ## Key Features • **Sensing Range**: Detects objects up to 40 mm away, providing flexibility for various application needs. • **Output Type**: Features a PNP output with a switching capacity of 200 mA, ensuring robust performance in demanding environments. • **Construction**: Encased in a durable plastic housing with an IP67 rating, ensuring protection against dust and moisture. • **Operating Temperature**: Functions effectively within a temperature range of -25°C to +70°C, making it suitable for diverse industrial conditions. • **Voltage Rating**: Operates on a wide voltage range of 10 to 30 VDC, compatible with various control systems. ## Applications • **Manufacturing**: Ideal for detecting the presence of materials in production lines, enhancing automation efficiency. • **Food and Beverage Industry**: Suitable for applications requiring non-contact detection of liquids and powders, ensuring compliance with hygiene standards. • **Logistics and Warehousing**: Used in conveyor systems for object detection and monitoring, improving workflow and reducing manual handling. • **Plastic and Wood Industries**: Effective in detecting non-metallic objects, optimizing material handling processes. ## Benefits • **Increased Efficiency**: Non-contact sensing reduces wear and tear on equipment, prolonging sensor life and minimizing maintenance costs. • **Enhanced Safety**: By eliminating physical contact, the sensor contributes to a safer operational environment, reducing the risk of accidents. • **Versatile Compatibility**: The sensor’s broad voltage range and output type make it adaptable to various control systems and industrial environments. • **Reliable Performance**: With a robust design and high ingress protection, this sensor ensures consistent performance even in harsh conditions. --- *Product information compiled with AI assistance for reference purposes.*