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Specification & Description
| Specification | Description |
|---|---|
| Part Number | NBB20-U1-A2 |
| Manufacturer | Pepperl + Fuchs |
| Category | Inductive Sensor |
| Switching Element Function | PNP NO/NC |
| Rated Operating Distance | 20 mm |
| Installation | Flush |
| Output Polarity | DC |
| Assured Operating Distance | 0 ... 16.2 mm |
| Reduction Factor (Al) | 0.33 |
| Reduction Factor (Cu) | 0.31 |
| Reduction Factor (304) | 0.74 |
| Operating Voltage | 10 ... 30 V DC |
| Switching Frequency | 0 ... 150 Hz |
| Hysteresis | Typ. 5% |
| Reverse Polarity Protection | Yes |
| Short-Circuit Protection | Pulsing |
| Voltage Drop | ≤ 2 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 |
| Operating Voltage Indicator | LED, green |
| Switching State Indicator | LED, yellow |
| MTTFd | 1230 years |
| Mission Time (TM) | 20 years |
| Diagnostic Coverage (DC) | 0% |
| Ambient Temperature | -25 ... 85 °C (-13 ... 185 °F) |
| Storage Temperature | -40 ... 85 °C (-40 ... 185 °F) |
| Connection Type | Screw terminals |
| Core Cross-Section | ≤ 2.5 mm² |
| Housing Material | PA/metal with epoxy powder coating |
| Sensing Face | PA |
| Housing Base | Plastic |
| Degree of Protection | IP68 / IP69K |
| Mass | 225 g |
| Dimensions | Height: 40 mm, Width: 40 mm, Length: 118 mm |
| Tightening Torque (Housing) | 1.8 Nm |
| Tightening Torque (Screw Terminal) | 1.0 Nm |
| Standard Conformity | EN 60947-5-2:2007, IEC 60947-5-2:2007 |
| UL Approval | cULus Listed, General Purpose |
| CSA Approval | cCSAus Listed, General Purpose |
| CCC Approval | CCC approval / marking not required for products rated ≤36 V |
| Features | Sensor head bidirectional and rotatable, 4 LEDs indicator for 360° visibility, 20 mm flush, 4-wire DC |
| Accessories | V1-M20-80 Receptacles, M12/M20; plastic version, MHW 01 Modular mounting bracket, MH 04-2681F Mounting aid for VariKont, +U1+ and +U9* |
The Pepperl + Fuchs NBB20-U1-A2 is a high-performance inductive sensor designed for precise and reliable detection of metallic objects. This sensor features a robust and versatile design, making it suitable for a wide range of industrial applications. With a rated operating distance of 20 mm and flush installation capability, it ensures accurate and consistent performance in various environments.
The NBB20-U1-A2 operates on a 4-wire DC system and offers both Normally Open (NO) and Normally Closed (NC) switching functions, providing flexibility in integration. It is equipped with four LEDs for 360° visibility, allowing for easy status monitoring from any angle. The sensor is designed to withstand harsh conditions, with an operating temperature range of -25 to 100 °C (-13 to 212 °F) and a high degree of protection rated at IP68/IP69K.
Constructed with durable PA/metal housing and an epoxy powder coating, the NBB20-U1-A2 is built to last in demanding industrial settings. It also features reverse polarity protection and short-circuit protection, ensuring reliable operation and longevity. The sensor's compact dimensions (118 mm length, 40 mm width, and 40 mm height) and screw terminal connections make it easy to install and integrate into existing systems.
Ideal for applications requiring precise metal detection, the Pepperl + Fuchs NBB20-U1-A2 inductive sensor is a dependable choice for enhancing automation and control processes in industrial environments.
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Frequently Asked Questions
What is the operating voltage range for this inductive sensor?
The operating voltage range for the Pepperl + Fuchs NBB20-U1-A2 inductive sensor is 10 to 30 V DC.
What is the rated operating distance of this sensor?
The rated operating distance of the Pepperl + Fuchs NBB20-U1-A2 sensor is 20 mm.
Can this sensor be installed flush?
Yes, the Pepperl + Fuchs NBB20-U1-A2 sensor is designed for flush installation.
What type of output does this sensor provide?
The sensor provides a PNP output.
What is the switching frequency of this sensor?
The switching frequency of the Pepperl + Fuchs NBB20-U1-A2 sensor is 0 to 300 Hz.
What is the ambient temperature range for this sensor?
The ambient temperature range for the Pepperl + Fuchs NBB20-U1-A2 sensor is -25 to 100 °C (-13 to 212 °F).
Does this sensor have short-circuit protection?
Yes, the Pepperl + Fuchs NBB20-U1-A2 sensor is equipped with pulsing short-circuit protection.
What is the degree of protection for this sensor?
The sensor has a degree of protection rated at IP68 / IP69K.
What type of connection does this sensor use?
The Pepperl + Fuchs NBB20-U1-A2 sensor uses screw terminals for connection.
What is the maximum operating current for this sensor?
The maximum operating current for the Pepperl + Fuchs NBB20-U1-A2 sensor is 200 mA.
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