Pepperl+Fuchs NBB25-FPS-A2 Inductive Proximity Sensor for Conveyor Position Detection and Industrial Automation
Pepperl+Fuchs NBB25-FPS-A2 for Industrial Position Detection
The Pepperl+Fuchs NBB25-FPS-A2 is a flush-mount inductive proximity sensor designed for reliable, non-contact detection of metal targets in industrial automation. According to current manufacturer data, this four-wire DC sensor provides a rated operating distance of 25 mm, a PNP complementary output, and a 10 to 30 V DC operating voltage. Its large sensing range and compact rectangular housing make it useful where dependable target detection is required without physical contact, wear, or mechanical switching parts.
Pepperl+Fuchs specifically describes this sensor for embeddable installation in conveyor floors. The device can be located precisely in a metal base plate, which provides a high degree of mechanical protection. No clearance is required between the sensor and the base plate. This installation concept can reduce the need for additional guarding while supporting consistent conveyor control and monitoring in material-handling environments.
Main Technical Features
- Rated operating distance: 25 mm, with an assured operating distance of 0 to 15.75 mm.
- Flush installation for integration into metal mounting structures and conveyor floors.
- Four-wire DC design with PNP complementary switching output.
- Operating voltage range of 10 to 30 V DC and switching frequency up to 70 Hz.
- Operating current up to 200 mA, subject to correct wiring and application conditions.
- Green operating-voltage LED and yellow switching-state LED for visual diagnostics.
- IP65 protection and a PBT housing, sensing face, and housing base.
- Reverse-polarity, short-circuit, overload, wire-breakage, inductive overvoltage, and surge protection.

Applications and Procurement Guidance
The NBB25-FPS-A2 is suited to conveyor systems, automated material handling, pallet movement, machine position feedback, production lines, logistics equipment, and other applications that require metal-object detection. Its 60 mm width, 77 mm length, and 41 mm height should be checked against the available mounting space. The specified ambient operating range is -25 to +85 degrees Celsius, while electrical connection is made through screw terminals accepting conductor cross-sections up to 2.5 mm².
For a replacement, confirm the full model number, sensing distance, mounting method, output logic, supply voltage, connection assignment, load current, switching frequency, environmental rating, and target material. Detection distance can vary with metals such as aluminum, copper, stainless steel, or brass, so the actual target and mounting arrangement should be considered during engineering review. The complementary output configuration should also be matched carefully to the PLC or control circuit.
Important Image and Model Verification
The supplied photograph shows boxed Pepperl+Fuchs interface modules labeled with a different product family and does not visually confirm the NBB25-FPS-A2 sensor. It is included only as the customer-designated reference image. Buyers must use the full NBB25-FPS-A2 part number and the manufacturer's current technical data sheet to verify the final product. Packaging, dimensions, labeling, and product appearance may differ from the reference photograph.
For price, stock status, lead time, and technical confirmation of the Pepperl+Fuchs NBB25-FPS-A2 inductive proximity sensor, send the complete model number, required quantity, target material, mounting details, and destination. Our team can assist with industrial automation procurement, maintenance replacement, and application-focused model verification.