Product Description

The Pepperl+Fuchs NCB8-18GM40-N0-V1 is an inductive proximity sensor designed for non-contact detection of metallic objects. It features a sensing distance of 8 mm with flush mounting capability, making it suitable for various industrial applications. The sensor operates with a nominal voltage of 8.2 V (requiring a series resistor of approximately 1 kΩ) and utilizes a 2-wire NAMUR output, commonly used in hazardous areas when paired with appropriate switch amplifiers. Its robust stainless steel housing ensures durability, and it is protected against reverse polarity and short circuits. Additionally, the sensor is rated for use up to Safety Integrity Level (SIL) 2 according to IEC 61508, making it suitable for safety-critical applications.

Technical Specifications

• Sensor Type: Inductive​
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• Sensing Distance: 8 mm​
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• Mounting: Flush​
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• Output Type: NAMUR, 2-wire​
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• Nominal Voltage: 8.2 V (requires series resistor of approximately 1 kΩ)​
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• Switching Frequency: Up to 1500 Hz​
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• Hysteresis: 1% to 15% (typically 5%)​
• Reverse Polarity Protection: Yes​
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• Short-Circuit Protection: Yes​
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• Current Consumption (unactuated): Minimum 2.2 mA​
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• Current Consumption (actuated): Up to 1 mA​
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• Switching State Indicator: Yellow multihole LED​
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• Functional Safety: Suitable up to SIL 2 according to IEC 61508​
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• 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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• Degree of Protection: IP66 / IP67​
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• Connection Type: M12 x 1, 4-pin connector plug​
• Dimensions: Length: 40 mm; Diameter: 18 mm