Product Description

​The Pepperl+Fuchs NCB5-18GM40-N0 is a cylindrical inductive proximity sensor designed for non-contact detection of metallic objects. Featuring a normally closed (NC) NAMUR output, it provides reliable performance in industrial applications. The sensor's stainless steel housing ensures durability, while its flush installation capability allows for seamless integration into machinery.

Technical Specifications

• Switching Function: Normally Closed (NC)​
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• Output Type: NAMUR​
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• Rated Operating Distance (s_n): 5 mm​
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• Installation: Flush​
• Assured Operating Distance (s_a): 0 to 4.05 mm​
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• Actual Operating Distance (s_r): 4.5 to 5.5 mm (typically 5 mm)​
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• Nominal Voltage (U_o): 8.2 V (with a series resistor of approximately 1 kΩ)​
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• Switching Frequency (f): 0 to 400 Hz​
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• Hysteresis (H): 1% to 15% (typically 5%)​
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• Reverse Polarity Protection: Yes​
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• Short-Circuit Protection: Yes​
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• Current Consumption:
• Object Not Detected: Minimum 3 mA​
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• Object Detected: Up to 1 mA​
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• Switching State Indicator: Yellow LED visible from all directions​
• Ambient Temperature Range: -25°C to 100°C​
• Storage Temperature Range: -40°C to 100°C​
• Housing Material: Stainless Steel (1.4305 / AISI 303)​
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• Sensing Face Material: PBT​
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• Degree of Protection: IP66 / IP67​
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• Connection Type: PVC Cable, 2 meters in length​
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• Cable Specifications: 2-wire, 0.75 mm² cross-section​
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• Approvals:
• ATEX: II 1G Ex ia IIC T6...T1 Ga​
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• IECEx: Ex ia IIC T6...T1 Ga​
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• UL: Listed for General Purpose​
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• CSA: Listed for General Purpose​
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• CCC: Approval not required for products rated ≤36 V​
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• Marine Approval: DNVGL TAA00001A5​
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• Safety Integrity Level (SIL): SIL 2​
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• Mean Time To Dangerous Failure (MTTF_d): Approximately 2040 years​
• Mission Time (T_M): 20 years​
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• Diagnostic Coverage (DC): 0%​