WTB250-2P1151: Advanced Photoelectric Sensor by SICK

Selling Points

1Reliable Detection: Detects objects up to 1000 mm with background suppression for accurate readings.
2Versatile Connectivity: Selectable operating mode via control wire for light or dark detection.
3Compact Design: Compact housing with universal AC/DC voltage supply (10-30 V DC or 24-240 V AC/DC).
4Easy Installation: Visible red Bright Light LED simplifies alignment and commissioning.
5High-Performance: Response time ≤ 0.5 ms and switching frequency up to 1,000 Hz for fast and reliable operation.

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
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.	200 mm ... 1,000 mm	Sensing range	200 mm ... 1,000 mm
Focus	Approx. 3°	Type of light	Visible red light
Light source	LED	Light spot size (distance)	Ø 35 mm (1,000 mm)
Angle of dispersion	Approx. 3°	Adjustment	Potentiometer, 2 turns#!#Potentiometer, 2 rotations
Supply voltage UB	10 V DC ... 30 V DC	Ripple	< 5 V
Current consumption	35 mA	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 ms
Switching frequency	160 Hz	Connection type	Cable, 4-wire, 2 m
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 60947-5-2	Ambient operating temperature	–25 °C ... +55 °C
Ambient temperature, storage	–40 °C ... +70 °C	UL File No.	NRKH2.E300503 & NRKH8.E300503

Specifications may be subject to change without notice