Product Model
GTB20M-3411116GZZZ

Selling Points
- 1Background Suppression: Efficiently detects objects while suppressing background noise.
- 2Wide Object Distance Range: Detects objects from 5 mm to 3000 mm.
- 3Reliable Switching Output: Push-pull PNP/NPN switching for robust control.
- 4Compact Design: Dimensions (L, D, W): 74.5 mm x 63 mm x 23.5 mm.
- 5IP67 Enclosure Rating: Durable and resistant to harsh environments.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Functional principle | Photoelectric proximity sensor | Functional principle detail | Background suppression |
Sensing range_Sensing range min. | 0.005 m | Sensing range_Sensing range max. | 3 m |
Sensing range_Adjustable switching threshold for background suppression | 0.1 m ... 3 m | Sensing range_Reference object | Object with 90% remission factor (complies with standard white according to DIN 5033) |
Sensing range_Minimum distance between set sensing range and background (black 6% / white 90%) | 200 mm, at a distance of 1000 mm | Emitted beam_Light source | LED |
Emitted beam_Type of light | Infrared light | Emitted beam_Shape of light spot | Rectangular |
Emitted beam_Light spot size (distance) | Ø 28 mm (500 mm) | Emitted beam_Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle) | < +/- 1.5° (at Ta = +23 °C) |
Key LED figures_Normative reference | EN 62471:2008-09 | IEC 62471:2006, modified | Key LED figures_LED risk group marking | Free group |
Key LED figures_Wave length | 850 nm | Key LED figures_Average service life | 100,000 h at Ta= +25 °C |
Adjustment_Potentiometer 1 | For setting the sensing range, 7 rotations | Adjustment_Operating mode switch | For inverting the switching function (light/dark switching) |
Adjustment_Potentiometer 2 | For adjusting the delay time | Adjustment_Potentiometer 3 | For selecting the delay time |
Indication_LED green | Operating indicatorStatic on: power onStatic off: object not present | Indication_LED yellow | Status of received light beamStatic on: object presentStatic off: object not present |
Supply voltage UB | 10 V DC ... 30 V DC | Ripple | < 5 V |
Usage category | DC-13 (according to EN 60947-1) | Current consumption | ≤ 30 mA, Without load At 24 V AC/DC |
Protection class | III | Digital output_Number | 2 (Complementary) |
Digital output_Type | Push-pull: PNP/NPN | Digital output_Switching mode | Light/dark switching |
Digital output_Signal voltage PNP HIGH/LOW | VS- (≤ 3 V) / approx. 0 V | Digital output_Signal voltage NPN HIGH/LOW | VS- (≤ 3 V) / approx. 0 V |
Digital output_Output current Imax. | ≤ 100 mA2) | Digital output_Circuit protection outputs | Reverse polarity protected |
Digital output | Overcurrent protected | Digital output | Short-circuit protected |
Digital output_Response time | ≤ 1.67 ms | Digital output_Switching frequency | 300 Hz3) |
Digital output_Time functions | Deactivated (factory setting), switch-on delay, off delay, ON and OFF delay | Digital output_Delay time | Adjustable via time delay selector switch, 0 ms ... 10,000 ms, 0 ms (factory setting) |
Pin/Wire assignment_BN 1 | + (L+) | Pin/Wire assignment_WH 2 | ǬDigital output, dark switching, object present → output Ǭ LOW |
Pin/Wire assignment_BU 3 | - (M) | Pin/Wire assignment_BK 4 | QDigital output, light switching, object present → output Q HIGH |
Housing | Rectangular | Dimensions (W x H x D) | 23.5 mm x 74.5 mm x 63 mm |
Connection | Cable with M12 male connector, 4-pin, 315 mm | Connection detail_Deep-freeze property | Do not bend below 0 °C |
Connection detail_Conductor size | 0.34 mm² | Connection detail_Cable diameter | Ø 5 mm |
Connection detail_Length of cable (L) | 270 mm | Material_Housing | Plastic, ABS |
Material_Front screen | Plastic, PMMA | Material_Cable | Plastic, PVC |
Weight | Approx. 121 g |
Specifications may be subject to change without notice