The transmitter and receiver in these sensors are located in a single housing. The sensor evaluates transmitted light reflected back from the object. The output is switched as soon as an object passes the selected range. Bright objects reflect more light than dark objects, and can thus be recognized from greater distances.

Features at a Glance
- Stainless steel housing
- Adjustable detection range
- Large detection range
Optical Data
Range | 1,000 mm |
Switching Hysteresis | < 15 % |
Light Source | Infrared Light |
Wavelength | 880 nm |
Service Life (T = +25 °C) | 100,000 h |
Max. Ambient Light | 10,000 Lux |
Opening Angle | 12 ° |
Electrical Data
Supply Voltage | 10 … 30 V DC |
Current Consumption (Ub = 24 V) | < 40 mA |
Switching Frequency | 250 Hz |
Response Time | 2 ms |
Temperature Drift | < 10 % |
Temperature Range | -25 … 60 °C |
Switching Output Voltage Drop | < 2.5 V |
PNP Switching Output/Switching Current | 200 mA |
Residual Current Switching Output | < 50 µA |
Short Circuit Protection | yes |
Reverse Polarity Protection | yes |
Overload Protection | yes |
Protection Class | III |
Mechanical Data
Setting Method | Potentiometer |
Housing Material | Stainless steel, V2A (1.4305 / 303) Plastic, PBT |
Full Encapsulation | yes |
Degree of Protection | IP67 |
Connection | M12 × 1; 4-pin |
Weight | 42 g |
Safety Relevant Data
MTTFd (EN ISO 13849-1) | 3,002.46 a |
Output
PNP NC, PNP NO | yes |
Adjustable Parameters
Circuit | NC NC+NO NO |
For more information and price : Wenglor TW66PA3 Reflex Sensor Energetic
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