Photoelectric sensors | W8 | WTB8-N1131 | Functional principle: Photoelectric proximity sensor | Functional principle detail: Background suppression | Switching output: NPN | Switching mode: Light/dark switching | Connection type: Cable, 3-wire, 2 m | Light source: LED | Adjustment: Potentiometer | Communication interface: - | Included with delivery: Stainless steel mounting bracket (1.4301/304) BEF-W100-A
Functional principle
Photoelectric proximity sensor
Functional principle detail
Background suppression
Dimensions (W x H x D)
11 mm x 31 mm x 20 mm
Housing design (light emission)
Rectangular
Sensing range max.
30 mm ... 300 mm1)
Sensing range
40 mm ... 300 mm1)
Type of light
Visible red light
Light source
LED2)
Light spot size (distance)
Ø 20 mm (300 mm)
Wave length
650 nm
Adjustment
Potentiometer, 4 turns
Supply voltage UB
10 V DC ... 30 V DC1)
Ripple
± 10 %2)
Current consumption
30 mA3)
Switching output
NPN
Switching mode
Light/dark switching
Switching mode selector
Selectable via light/dark rotary switch
Signal voltage NPN HIGH/LOW
Approx. VS/ < 1.8 V
Output current Imax.
≤ 100 mA
Response time
≤ 0.5 ms4)
Switching frequency
1,000 Hz5)
Connection type
Cable, 3-wire, 2 m6)
Cable material
Plastic, PVC
Circuit protection
A7)B8)D9)
Kaal
50 g
Housing material
Plastic, ABS
Optics material
Plastic, PMMA
Enclosure rating
IP67
Items supplied
Stainless steel mounting bracket (1.4301/304) BEF-W100-A
Ambient operating temperature
–25 °C ... +55 °C
Ambient temperature, storage
–40 °C ... +70 °C
MTTFD
1,568 years
DCavg
0 %
EU declaration of conformity
✔
UK declaration of conformity
✔
ACMA declaration of conformity
✔
Moroccan declaration of conformity
✔
China RoHS
✔
Photobiological safety (DIN EN 62471) certificate
✔
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