872C-D3NP12-D4 | Allen-Bradley Proximity Sensor, 3-Wire, 10-30V DC, Micro QD

The 872C-D3NP12-D4 is a shielded inductive proximity sensor from Allen-Bradley, designed to detect metallic targets without physical contact. It operates on 10–30V DC and is commonly used in industrial automation, robotics, and material handling. Its normally open (N.O.) output makes it ideal for presence detection, positioning, and part-counting applications. The sensor responds when a metallic object enters its 3 mm sensing field. With its rugged build and reliable switching, it supports high-cycle, maintenance-free operation. It offers solid-state reliability with no moving parts.

This sensor offers a 3 mm sensing distance, which is optimal for precise object detection in close-range industrial processes. The shielded construction ensures that the sensing field is focused forward, reducing false triggering from surrounding objects. It’s best suited for metallic targets like steel, iron, or aluminum. The short range supports compact automation tasks and enhances accuracy. Reliable switching even at high frequencies is maintained throughout this distance. It is perfect for conveyor stops, part ejection verification, or position control.

This model comes with a 4-pin DC Micro Quick Disconnect (Micro QD). The plug-in connection allows for rapid installation and replacement without rewiring. It supports standard M12 cable assemblies, making it compatible with most control networks. The quick disconnect reduces maintenance time and supports modular equipment design. Shielding on the connector ensures noise immunity in harsh environments. Proper cable selection is crucial for stable performance.

This sensor supports a maximum load current of 200 mA, suitable for most PLC input channels and relay drivers. It can directly switch indicator lights or logic-level loads without the need for external transistors. Current protection is built in to prevent overload damage. The device is designed for reliable signal transmission under load. For larger loads, an interposing relay should be used.

The sensor is certified to CE, UL, cUL, CCC, KC, C-TICK, and RCM standards. These certifications ensure compliance with global industrial safety, EMI, and environmental performance regulations. This makes it suitable for export and use in regulated installations. Certification supports panel inspection, third-party audits, and global deployment. It reflects Allen-Bradley’s commitment to quality and conformity.