PEPPERL+FUCHS NBB4-12GM50-E3-V1 Inductive Sensor, 4 mm Flush, PNP NO, M12 Connector, IP67 326161-0005

With a 4 mm sensing range in a flush-mount M12 stainless steel housing, the NBB4-12GM50-E3-V1 delivers reliable detection in tight industrial spaces. Its PNP normally-open output switches up to 1000 Hz, making it suitable for fast automation tasks.

Overview

The PEPPERL+FUCHS NBB4-12GM50-E3-V1 is a cylindrical inductive proximity sensor with a threaded M12 x 1 stainless steel body. It is designed for flush installation in metal, providing a 4 mm operating distance. The sensor operates on 10–30 V DC and offers a PNP, normally-open switching output with short-circuit and reverse polarity protection.

What stands out

• Flush-mount design allows embedding in metal without performance loss
• Stainless steel housing (1.4305 / AISI 303) withstands harsh environments
• M12 4-pin connector for quick and secure wiring
• High switching frequency up to 1000 Hz for dynamic processes
• IP67 protection against dust and temporary immersion

Technical details

• Sensing principle: Inductive
• Sensing range: 4 mm
• Installation type: Flush
• Output type: PNP, normally open
• Operating voltage: 10–30 V DC
• Switching frequency: 0–1000 Hz
• Connection: M12 connector, 4-pin
• Housing: Stainless steel 1.4305 / AISI 303, M12 x 1 thread
• Sensing face: PBT
• Protection rating: IP67
• Operating temperature: -25 to 70 °C
• Short-circuit protection: Pulsed
• Reverse polarity protection: Yes
• Switching state indicator: Yellow LED

Our verdict

A compact and robust inductive sensor for flush mounting, ideal for position sensing in metalworking, packaging, and assembly lines where space is limited and reliability is critical.