Pepperl+Fuchs NBB8-18GM50-E2 Inductive Proximity Sensor

USD 47.26

M18 flush-mount inductive proximity sensor with 8 mm sensing distance, PNP NO output, 6-36V DC operation, and -40 to +85 °C operating temperature.

SKU PEPPERL-FUCHS-NBB8-18GM50-E2 Category
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Pepperl+Fuchs NBB8-18GM50-E2 Inductive Proximity Sensor

Model Identifier NBB8-18GM50-E2
Official Part Number NBB8-18GM50-E2
GTIN Standard NA

Technical Overview

M18 flush-mount inductive proximity sensor with 8 mm sensing distance, PNP NO output, 6-36V DC operation, and -40 to +85 °C operating temperature.

Key Features

  • M18 flush-mount housing
  • 8 mm rated operating distance
  • PNP, normally open (NO) output
  • 3-wire DC output polarity
  • Operating voltage from 6 V to 36 V DC
  • High switching frequency up to 1350 Hz
  • Extended ambient temperature range from -40 to +85 °C
  • Pulsing short-circuit protection and reverse polarity protection
  • Yellow LED switching state indicator
  • IP68 protection

Extended operating voltage range (6-36 V DC) and high switching frequency (up to 1350 Hz) ensure versatile and rapid detection in demanding industrial applications.

Technical Specification Matrix

ParameterValue
Switching FunctionNormally open (NO)
Output TypePNP, 3-wire
Rated Operating Distance (sn)8 mm
InstallationFlush
Output PolarityDC
Assured Operating Distance (sa)0 ... 6.48 mm
Actuating ElementMild steel, e. g. 1.0037, SR235JR (formerly St37-2), 24 mm x 24 mm x 1 mm
Reduction Factor rAl0.38
Reduction Factor rCu0.35
Reduction Factor r3040.74
Reduction Factor rBrass0.47
Operating Voltage (UB)6 ... 36 V
Switching Frequency (f)0 ... 1350 Hz
Hysteresis (H)typ. 5 %
Reverse Polarity ProtectionReverse polarity protected
Short-Circuit ProtectionPulsing
Voltage Drop (Ud)≤ 1 V
Operating Current (IL)0 ... 200 mA
Off-state Current (Ir)max. 20 µA
No-load Supply Current (I0)≤ 10 mA
Time Delay Before Availability (tv)≤ 10 ms
Switching State IndicatorLED, yellow
Ambient Temperature (Operation)-40 ... +85 °C
Storage Temperature-40 ... +85 °C
Rated Insulation Voltage (Ui)36 V
Rated Impulse Withstand Voltage (Uimp)500 V
Protection ClassII
Standard ConformityEN IEC 60947-5-2
UL ApprovalcULus Listed, Load Type: General Purpose, Circuitry: Class 2 Power Source
Physical Weight (kg)0
Dimensions L x W x H (cm)6.6 x 1.8 x 1.8

Industrial Applications

1. High-Speed Parts Counting on a Conveyor Belt

This sensor is perfectly suited for rapidly detecting small metallic components moving on a conveyor. Its high switching frequency enables accurate counting of fast-moving parts.

Problem Solved

Ensures precise inventory management and production control by reliably counting parts without missing any, even at high speeds.

High switching frequency8mm sensing distancePNP NO outputConveyor systemsParts countingAutomation

2. Position Detection in Heavy Machinery for Outdoor Use

With its wide operating temperature range (-40 to +85 °C) and IP68 protection, the sensor provides reliable position feedback in heavy machinery exposed to harsh outdoor and industrial environments.

Problem Solved

Guarantees consistent operation and safety in challenging conditions by accurately reporting the position of moving machine components, despite temperature extremes or exposure to dust and water.

IP68-40 to +85 °CExtended voltage rangePosition sensingHeavy machineryOutdoor applicationsRobustness

3. Tool Presence Verification in Machining Centers

The 8mm flush installation and stable sensing distance make this sensor ideal for verifying the presence or absence of metallic tools in machining centers, preventing operational errors.

Problem Solved

Prevents potential machine damage and production faults by confirming that the correct tools are properly loaded and positioned before machining operations begin, improving safety and process reliability.

Flush installation8mm sensingTool detectionMachining centersShort-circuit protectionReverse polarity protectionSafety interlock
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