Pepperl+Fuchs NBB4-12GM50-E2-M Inductive Proximity Sensor

Product Overview

Model: NBB4-12GM50-E2-M
Manufacturer: Pepperl+Fuchs

The Pepperl+Fuchs NBB4-12GM50-E2-M is a cylindrical inductive proximity sensor designed for non-contact detection of metallic objects in industrial automation systems. It features an M12 threaded housing, 4 mm sensing distance, PNP normally open output, and a compact design suitable for reliable position detection in machinery and production equipment.

Technical Specifications

• Product Type: Inductive Proximity Sensor
• Model: NBB4-12GM50-E2-M
• Manufacturer: Pepperl+Fuchs
• Sensor Type: Inductive sensor
• Detection Method: Non-contact metal detection
• Housing Diameter: 12 mm
• Thread Size: M12 × 1
• Sensing Distance: 4 mm
• Installation Type: Flush mounting
• Output Type: PNP
• Switching Function: Normally Open (NO)
• Output Configuration: 3-wire DC
• Operating Voltage: 5–30 VDC / 10–30 VDC (depending on version)
• Maximum Load Current: 200 mA
• Switching Frequency: Up to approx. 800 Hz
• Protection Rating: IP67 / IP68 / IP69K (depending on configuration)
• Operating Temperature: -40°C to +85°C
• Housing Material: Nickel-plated brass
• Status Indicator: LED switching indicator
• Connection: M cable / connector version

Advantages & Features

• Reliable Metal Detection
  Uses inductive sensing technology for stable and wear-free detection of metal objects.
• Compact M12 Design
  Standard threaded housing allows easy installation in limited spaces.
• High Environmental Protection
  Rugged construction supports operation in demanding industrial environments.
• Fast Switching Response
  Suitable for automation systems requiring reliable position monitoring.
• PNP Output Compatibility
  Easily connects with PLC digital input modules and industrial controllers.
• Long Service Life
  Non-contact operation reduces mechanical wear compared with traditional switches.

Applications

• Industrial Automation Equipment
• Machine Tool Position Detection
• Conveyor Systems
• Packaging Machinery
• Robotics Equipment
• Assembly Lines
• Metal Part Detection
• Factory Automation Systems

Precautions

• Confirm PLC input type matches the PNP output configuration.
• Verify operating voltage before installation.
• Maintain correct sensing distance for accurate detection.
• Avoid strong mechanical impact on the sensor face.
• Keep sensor cables away from high-voltage interference sources.
• Ensure proper tightening torque when mounting.
• Check wiring polarity before powering the sensor.