Photoelectric sensors | W250-2 | WTB250-2P1141 | Functional principle: Photoelectric proximity sensor | Functional principle detail: Background suppression | Switching output: PNP | 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
PNP
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
Weight
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
516 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
ECLASS 6.0
27270903
ECLASS 7.0
27270903
ECLASS 8.0
27270903
ECLASS 9.0
27270903
ECLASS 10.0
27270903
ECLASS 11.0
27270903
ECLASS 12.0
27270903
ECLASS 13.0
27270903
ECLASS 14.0
27270903
ECLASS 15.0
27270903
ETIM 6.0
EC002719
ETIM 7.0
EC002719
ETIM 8.0
EC002719
ETIM 9.0
EC002719
ETIM 10.0
EC002719
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