Wenglor

Wenglor HT77PA3, Reflex Sensor with Background Suppression

Wenglor HT77PA3, Reflex Sensor with Background Suppression

Regular price €569,61
Regular price Sale price €569,61
Sale Sold out
Taxes included.

📦 Ready for dispatch: 02.12.2025

SKU: SKU:HT77PA3

These sensors detect distance by measuring angles. They are particularly good at recognizing objects in front of any background. The color, shape and surface characteristics of the object have practically no influence on sensor switching performance.

  • Triple beam correction principle
  • Infrared light
  • Plug can be rotated
  • Adjustable time delay
Optical Data
Range 1,500 mm
Setting Range 300 ... 1,500 mm
Switching Hysteresis < 5 %
Light Source Infrared Light
Service Life (T = +25 °C) 100,000 h
Risk Group (EN 62471) 1
Max. Ambient Light 10,000 Lux
Electrical Data
Supply Voltage 10 ... 30 V DC
Current Consumption (Ub = 24 V) 40 mA
Switching Frequency 300 Hz
Response Time 1,700 µs
Off-Delay 0 ... 1 s
Temperature Drift < 5 %
Temperature Range -25 ... 60 °C
Switching Output Voltage Drop < 2.5 V
PNP Switching Output/Switching Current 200 mA
Short Circuit Protection yes
Reverse Polarity Protection yes
Overload Protection yes
Protection Class III
Mechanical Data
Setting Method Potentiometer
Housing Material Plastic, PBT
Degree of Protection IP67
Connection M12 × 1; 4-pin
Weight 126 g
Output
PNP NC, PNP NO yes
Adjustable parameters
Circuit NCNC+NONO
All other parameters can be found in the product documentation.
Standards and certificates
Table 1
Detection Range 300 mm 800 mm 1500 mm
Light Spot Diameter 6 mm 18 mm 30 mm
Connection Diagram
Switching Distance Deviation
Typical characteristic curve based on white, 90 % remissionSr = Switching DistancedSr = Switching Distance Changeblack 6 % remissiongrey 18 % remission
Ctrl. Panel
11 = ON-Delay/OFF-Delay Adjuster05 = Switching Distance Adjuster32 = Contamination Warning/Error Warning01 = Switching Status Indicator
Dimensioned Picture
Dimensions specified in mm (1 mm = 0.03937")1 = Receiver Diode2 = Transmitter Diode3 = Receiver DiodeScrew M4 = 1 Nm
Complementary Products
  • PNP-NPN Converter BG2V1P-N-2M
View full details