Product Model

WTB4SP-21312220ZZZ

In Stock
Last updated: 2025/4/18
sick WTB4SP-21312220ZZZ

Selling Points

  • 1High Precision Detection: Detects objects as small as 0.1 mm at 70 mm distance.
  • 2Background Suppression: Adjustable switching threshold for optimal performance.
  • 3Versatile Sensing Range: Operates between 4 mm and 130 mm.
  • 4Durable Design: IP66 and IP67 rated for harsh environments.
  • 5Reliable Operation: Visible red light with a point-shaped light spot for clear detection.
Product Details
WTB4SP-21312220ZZZ
sick

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Functional principle
Photoelectric proximity sensor
Functional principle detail
Background suppression, NarrowBeam
Sensing range_Sensing range min.
4 mm
Sensing range_Sensing range max.
130 mm
Sensing range_Adjustable switching threshold for background suppression
10 mm ... 130 mm
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%)
0.5 mm, At 70 mm distance
Sensing range_Recommended sensing range for the best performance
20 mm ... 90 mm
Emitted beam_Light source
PinPoint LED
Emitted beam_Type of light
Visible red light
Emitted beam_Shape of light spot
Point-shaped
Emitted beam_Light spot size (distance)
1.8 mm (70 mm)
Emitted beam_Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)
< +/- 1.5° (at Ta = +23 °C)
Focus position
70 mm
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
635 nm
Key LED figures_Average service life
100,000 h at Ta= +25 °C
Smallest detectable object (MDO) typ.
0.1 mm (At 70 mm distance)
Smallest detectable object (MDO) typ.
Object with 90% remission factor (complies with standard white according to DIN 5033)
Adjustment_Teach-Turn adjustment
BluePilot: For setting the sensing range
Indication_LED blue
BluePilot: sensing range indicator
Indication_LED green
Operating indicatorStatic on: power on
Indication_LED yellow
Status of received light beamStatic on: object presentStatic off: object not present
Special applications
Detecting uneven, shiny objects, Detection of poorly remitting and tilted objects
Supply voltage UB
10 V DC ... 30 V DC
Ripple
≤ 5 V
Usage category
DC-12 (According to EN 60947-5-2)#!#DC-13 (According to EN 60947-5-2)
Current consumption
≤ 20 mA, without load. At U#!#= 24 V
Protection class
III
Digital output_Number
1
Digital output_Type
Push-pull: PNP/NPN
Digital output_Switching mode
Dark switching
Digital output_Signal voltage PNP HIGH/LOW
Approx. UB-2.5 V / 0 V
Digital output_Signal voltage NPN HIGH/LOW
Approx. UB/ < 2.5 V
Digital output_Output current Imax.
≤ 100 mA
Digital output_Circuit protection outputs
Reverse polarity protected
Digital output
Overcurrent protected
Digital output
Short-circuit protected
Digital output_Response time
≤ 500 µs
Digital output_Repeatability (response time)
150 µs
Digital output_Switching frequency
1,000 Hz
Pin/Wire assignment_Function of pin 4/black (BK)
Digital output, dark switching, object present → output Ǭ LOW2)
Housing
Rectangular
Design detail
Slim
Dimensions (W x H x D)
12.1 mm x 41.9 mm x 18.6 mm
Connection
Connector M8, 3-pin
Material_Housing
Plastic, VISTAL®
Material_Front screen
Plastic, PMMA
Material_Male connector
Plastic, VISTAL®
Maximum tightening torque of the fixing screws
0.4 Nm

Specifications may be subject to change without notice