Product Description And Features
The LF40 series square inductive proximity sensor features a durable PBT housing, offering a compact and aesthetically pleasing design with exceptional stability and high reliability.The sensor’s side-sensing design allows for straightforward installation, adapting to various mounting positions and space requirements, making it suitable for most automation applications.
This sensor provides a 15mm or 20mm sensing distance and supports multiple output modes, including NPN, PNP, 2-wire DC, to accommodate various control system needs. It comes with a 2-meter cable and is rated IP67, ensuring stable operation even in harsh industrial environments, withstanding temperatures ranging from -25°C to 70°C.
Technical Specifications
| Output | Model | |
| DC 3-Wire NPN NO | LF40-15N1 | LF40-20N1 |
| DC 3-Wire NPN NC | LF40-15N2 | LF40-20N2 |
| DC 3-Wire PNP NO | LF40-15P1 | LF40-20P1 |
| DC 3-Wire PNP NC | LF40-15P2 | LF40-20P2 |
| DC 2-Wire NO | LF40-15D1 | LF40-20D1 |
| DC 2-Wire NC | LF40-15D2 | LF40-20D2 |
| Sensing distance | 15MM±10%/20MM±10% |
| Setting distance(Sa) | 0-13.5MM/0-18MM |
| Sensing direction | Upper sensing |
| Hysteresis | ≤10% |
| Detectable objects | Magnetic metal (non-magnetic metal has a shorter detection distance) |
| Sensing surface size | 40*40MM |
| Leakage current | DC:≤0.6mA |
| Supply Voltage | DC:10-30V |
| Load current | 200mA |
| Response frequency(F) | 250Hz(DC) |
| Consunption current | DC 3-wire NPN/PNP:≤10mA; DC 2-wire:≤3mA |
| Voltage drop | DC 3-wire NPN/PNP:≤0.7V; DC 2-wire:≤3V |
| Circuit protection | Short circuit, overload, reverse polarity protection |
| Output indicator | Green light |
| Ambient temperature | -20~+70℃ |
| Shock | 500m/s(50G) ineach X,Y,Z direction for 3 times |
| Vibration | 1mm amplitude at frequency 10~55Hz(for 1 min)ineach X.Y.Z direction for 2hours |
| Protectiondegree | IP67(IEC standards) |
| Connection | 2M PVC Cable or M12 Connector |
| Meterial | PBT |







