The NBB20-L3M-A2-C3-V1 inductive sensor from Pepperl + Fuchs offers precise non-contact detection of metal objects with a rated operating distance of 20 mm. Under real-world conditions, it reliably senses targets within 18–22 mm, while its assured range of 0–16.2 mm ensures consistent performance across diverse applications. Featuring a complementary switching function and PNP output, it activates with a high-level signal when an object is detected, making it compatible with most industrial control systems. The sensor’s 4-wire DC configuration and flush-mount design simplify integration into compact machinery, while reduction factors for materials like aluminum (0.42), copper (0.38), and stainless steel (0.75) allow adaptable detection based on target composition.
Engineered for stable operation, this sensor operates on a wide 10–30 V DC voltage range, ideal for standard industrial power setups. It features a switching frequency of 0–5 Hz and 5% hysteresis to minimize signal fluctuations near detection thresholds. Built-in protections include reverse polarity and pulsing short-circuit safeguards, ensuring resilience against wiring errors and transient faults. The sensor’s low voltage drop (≤ 3 V) and energy-efficient design—with an operating current of 0–200 mA and minimal off-state current (0–0.5 mA)—reduce power consumption. Visual diagnostics via green (power) and yellow (switching state) LEDs enable quick status checks, enhancing maintenance efficiency in automated lines.
Designed to withstand tough conditions, the NBB20-L3M-A2-C3-V1 features a rugged housing made of coated GD-Zn Al 4 Cu 1 with a Duroplast sensing face, offering high resistance to impacts and chemicals. Its IP67 rating ensures full protection against dust and water jets, making it suitable for washdown zones in food processing or heavy manufacturing. The sensor operates seamlessly in extreme temperatures from -25°C to 85°C (-13°F to 185°F) and stores safely at -40°C, adapting to both freezing and high-heat environments. With a compact M12x1 4-pin connector and flush installation capability, it fits into space-constrained machinery while delivering long-term reliability, backed by a MTTF dof 1420 years for critical applications.
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Property Category
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Property Details
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General Specifications
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- Switching Function: Complementary - Output Type: PNP - Rated Operating Distance: 20 mm - Installation: Flush - Output Polarity: DC - Assured Operating Distance: 0 - 16.2 mm - Actual Operating Distance: 18 - 22 mm - Reduction Factor (r_{al}): 0.42 - Reduction Factor (r_{cu}): 0.38 - Reduction Factor (r_{304}): 0.75 - Reduction Factor (r_{brass}): 0.49 - Output Type: 4 - wire
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Nominal Ratings
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- Operating Voltage: 10 - 30 V DC - Switching Frequency: 0 - 5 Hz - Hysteresis (Typical): 5% - Reverse Polarity Protection: Yes - Short - circuit Protection: Pulsing - Voltage Drop: ≤ 3 V - Operating Current: 0 - 200 mA - Off - state Current: 0 - 0.5 mA - No - load Supply Current: ≤ 20 mA - Time Delay before Availability: 80 ms - Alternating Magnetic Field: 200 mT - Operating Voltage Indicator: LED, green - Switching State Indicator: LED, yellow
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Functional Safety Related Parameters
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- MTTF (d): 1420 a - Mission Time ((t_{m})): 20 a - Diagnostic Coverage (DC): 0%
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Compliance with Standards and Directives
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- Standard Conformity: EN 60947 - 5 - 2:2007, EN 60947 - 5 - 2/A1:2012, IEC 60947 - 5 - 2:2007, IEC 60947 - 5 - 2 AMD 1:2012 - Approvals and Certificates: UL Approval (CULUS listed, general purpose), CCC Approval (not required for products rated ≤ 36 V)
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Ambient Conditions
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- Ambient Temperature: - 25 - 85 °C (-13 - 185 °F) - Storage Temperature: - 40 - 85 °C (-40 - 185 °F)
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Mechanical Specifications
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- Connection Type: Connector plug M12 x 1, 4 - pin - Housing Material: GD - Zn Al 4 Cu 1, coated; Metal fixing flange, coated - Sensing Face: Duroplast - Degree of Protection: IP67
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Classifications
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- System Class Code: Eclass 13.0 27274001, Eclass 12.0 27274001, Eclass 11.0 27270101, Eclass 10.0.1 27270101, Eclass 9.0 27270101, Eclass 8.0 27270101, Eclass 5.1 27270101; ETIM 9.0 ec002714, ETIM 8.0 ec002714, ETIM 7.0 ec002714, ETIM 6.0 ec002714, ETIM 5.0 ec002714; UNSPSC 12.1 39121550
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Product Tags:
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NBB20-L3M-A2-C3-V1 Inductive Proximity Sensor Pepperl+Fuchs M30 24V DC IP69K 3-Wire NO/NC Harsh Environments Images
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