Photoelectric sensors | W250-2 | WTB250-2N1141 | Functional principle: Photoelectric proximity sensor | Functional principle detail: Background suppression | Switching output: NPN | Switching mode: Light/dark switching | Connection type: Cable, 4-wire, 2 m | Light source: LED | Adjustment: Potentiometer | Communication interface: - | Included with delivery: BEF-W250 mounting bracket
Functional principle
Photoelectric proximity sensor
Functional principle detail
Background suppression
Dimensions (W x H x D)
20 mm x 65 mm x 43.9 mm
Housing design (light emission)
Rectangular
Sensing range max.
150 mm ... 500 mm1)
Sensing range
150 mm ... 500 mm1)
Focus
Approx. 3°
Type of light
Visible red light
Light source
LED2)
Light spot size (distance)
Ø 30 mm (500 mm)
Angle of dispersion
Approx. 3°
Adjustment
Potentiometer, 2 turns3)Potentiometer, 2 rotations
Supply voltage UB
10 V DC ... 30 V DC1)
Ripple
< 5 Vpp2)
Current consumption
35 mA3)
Switching output
NPN
Switching mode
Light/dark switching
Switching mode selector
Selectable via L/D control cable
Output current Imax.
≤ 100 mA
Response time
≤ 3 ms4)
Switching frequency
160 Hz5)
Connection type
Cable, 4-wire, 2 m6)
Cable material
Plastic, PVC
Conductor cross section
0.18 mm²
Cable diameter
Ø 3.8 mm
Circuit protection
A7)B8)C9)D10)
Protection class
III
Kaal
150 g
Housing material
Plastic, ABS
Optics material
Plastic, PMMA
Enclosure rating
IP67
Items supplied
BEF-W250 mounting bracket
Electromagnetic compatibility (EMC)
EN 60947-5-211)
Ambient operating temperature
–25 °C ... +55 °C
Ambient temperature, storage
–40 °C ... +70 °C
UL File No.
NRKH2.E300503 & NRKH8.E300503
MTTFD
536 years
DCavg
0 %
EU declaration of conformity
✔
UK declaration of conformity
✔
ACMA declaration of conformity
✔
Moroccan declaration of conformity
✔
China RoHS
✔
cRUus certificate
✔
Photobiological safety (DIN EN 62471) certificate
✔
ECLASS 5.1.4
27270903
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