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Specification & Description
| Specification | Description |
|---|---|
| Part Number | NJ2-12GM40-E2 |
| Alternative Part Number | NJ212GM40E2 |
| Manufacturer | Pepperl + Fuchs |
| Switching Element Function | PNP Normally Open (NO) |
| Rated Operating Distance | 2 mm |
| Installation | Flush |
| Output Polarity | DC |
| Assured Operating Distance | 0 ... 1.62 mm |
| Reduction Factor rAl | 0.23 |
| Reduction Factor rCu | 0.21 |
| Reduction Factor r304 | 0.7 |
| Operating Voltage | 10 ... 60 V |
| Switching Frequency | 0 ... 3000 Hz |
| Hysteresis | 1 ... 15%, typically 3% |
| Reverse Polarity Protection | Reverse polarity protected |
| Short-Circuit Protection | Pulsing |
| Voltage Drop | ≤ 3 V |
| Operating Current | 0 ... 200 mA |
| No-Load Supply Current | ≤ 11 mA |
| Ambient Temperature | -25 ... 70 °C (-13 ... 158 °F) |
| Storage Temperature | -40 ... 85 °C (-40 ... 185 °F) |
| Connection Type | Device connector M8 x 1, 3-pin or cable PUR, 2 m depending on model |
| Housing Material | Stainless steel 1.4305 / AISI 303 |
| Sensing Face | PBT |
| Protection Degree | IP67 |
| Compliance | EN 60947-5-2:2007, IEC 60947-5-2:2007 |
| Approvals | UL Listed, General Purpose, cCSAus Listed, General Purpose, Certified by CCC |
| Accessories | Mounting flange BF 12, Quick mounting bracket EXG-12 (varies by model) |
The Pepperl + Fuchs NJ2-12GM40-E2 is a high-performance inductive sensor designed for precision detection in a variety of industrial applications. Engineered with a flush design and a compact form factor, this sensor offers a nominal operating distance of 2 mm, ensuring accurate and reliable detection of metallic objects.
Constructed with a robust stainless steel housing and a PBT sensing face, the NJ2-12GM40-E2 is built to withstand harsh industrial environments, boasting an IP67 protection rating. This ensures the sensor is dust-tight and can resist water ingress, making it suitable for use in conditions where exposure to liquids or particulates is a concern.
The sensor operates within a voltage range of 10 to 60 V and features a PNP normally open (NO) switching element function, providing a versatile output that integrates seamlessly with a wide range of control systems. The assured operating distance of 0 to 1.62 mm, coupled with a switching frequency of up to 3000 Hz, allows for high-speed operation and quick response times.
Additional technical features include reverse polarity protection, short-circuit pulsing protection, and an LED indicator for switching state, enhancing the sensor's operational safety and ease of use. The NJ2-12GM40-E2 also supports a no-load supply current of ≤ 11 mA and an operating current range of 0 to 200 mA, making it an energy-efficient choice for continuous industrial use.
This inductive sensor is an ideal solution for applications requiring precise and reliable proximity detection, such as automated assembly lines, packaging machinery, and material handling systems. Its durability, accuracy, and ease of integration make it a valuable component for maintaining efficient and uninterrupted industrial operations.
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Frequently Asked Questions
What is the installation type for this inductive sensor?
The inductive sensor is designed for flush installation, allowing for a seamless integration into your system.
Can you describe the switching element function of this sensor?
This sensor features a PNP normally open (NO) switching element function, which means it is in a default state of being open until the presence of a target is detected.
What materials are used in the construction of this sensor?
The housing of the sensor is made from stainless steel 1.4305 / AISI 303, and the sensing face is constructed from PBT, ensuring durability and resistance to environmental factors.
What is the rated operating distance for this sensor?
The rated operating distance for the sensor is 2 mm, which is the optimal distance from the target for the sensor to operate effectively.
Is the sensor protected against reverse polarity?
Yes, the sensor is protected against reverse polarity, which helps to prevent damage from incorrect electrical connections.
What is the maximum operating voltage for this sensor?
The maximum operating voltage for the sensor is between 10 and 60 volts, providing flexibility for use in various electrical environments.
What are the ambient operating temperature limits for this sensor?
The sensor can operate in ambient temperatures ranging from -25 to 70 degrees Celsius, making it suitable for a wide range of industrial applications.
How is the switching state indicated on this sensor?
The sensor has an LED indicator that illuminates yellow to show the switching state, providing a clear visual cue for operation status.
What type of short-circuit protection does the sensor have?
The sensor is equipped with pulsing short-circuit protection, which helps to safeguard the sensor and connected equipment from potential damage.
What is the degree of protection provided by the sensor's housing?
The sensor's housing is rated at IP67, offering protection against dust ingress and temporary immersion in water, ensuring reliable performance in harsh conditions.
