Exact product identification
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SICK W4F Polarized Retro-Reflective Sensor WLD4FP-213121A0ZZZ
WLD4FP-213121A0ZZZ
SICK WLD4FP-213121A0ZZZ W4F polarized retro-reflective sensor with Retro-reflective, dual-lens system, 0–4.5 m sensing range, 1 push-pull pnp/npn output and m8 connector, 3-pin.
- Availability
- In Stock
- Condition
- New Original
- SKU
- 1121472
- Lifecycle
- Active
12 months warranty
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Technical specifications
Verified SICK ordering and technical data for WLD4FP-213121A0ZZZ, SICK part number 1121472.
- Manufacturer type
WLD4FP-213121A0ZZZ
- SICK part number
1121472
- Brand
SICK
- Product family
W4F
- Product type
Polarized Retro-Reflective Sensor
- Functional principle
Retro-reflective, dual-lens system
- Manufacturer lifecycle
Active
- Sensing range
0–4.5 m
- Recommended operating range
0.035–3.9 m with P250 reflector
- Light source
PinPoint LED, visible red light, 635 nm
- Light spot
Point-shaped, Ø 38 mm at 1,000 mm
- Documented application focus
object detection across a reflector-based sensing path
- Supply voltage
10–30 V DC
- Current consumption
≤ 20 mA without load at 24 V
- Digital outputs
1 push-pull PNP/NPN output
- Switching mode
Light switching
- Maximum output current
100 mA
- Response time
≤ 500 µs
- Switching frequency
1,000 Hz
- Communication
Conventional switching output
- Connection
M8 connector, 3-pin
- Housing
Rectangular flat design, plastic VISTAL®
- Dimensions
16 × 40.1 × 12.1 mm
- Weight
Approx. 30 g
- Enclosure rating
IP66, IP67 and IP69
- Operating temperature
−40 to +60 °C
- Storage temperature
−40 to +75 °C
Confirm the sensing geometry, connection, output logic before installing WLD4FP-213121A0ZZZ.
M8 connector, 3-pin
Connection Use the official connection diagram and confirm conductor or pin assignments before wiring the device.
1 push-pull PNP/NPN output
Light switching Verify the required output logic and the downstream control input before commissioning.
Sensing range 0–4.5 m
Retro-reflective, dual-lens system Apply the manufacturer operating-range and target/background guidance; the recommended range is 0.035–3.9 m with P250 reflector.
Retro-reflective, dual-lens system
Optical geometry This variant is intended for object detection across a reflector-based sensing path. Confirm target behavior and mounting geometry in the application.
Selection and replacement checks
Do not substitute another W4F type solely because the housing looks the same. Verify the full type code, numeric SICK part number, optics, output behavior and connection.
Downloads and documentation
Use current SICK documentation for wiring, configuration and application checks.
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Documentation support
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WLD4FP-213121A0ZZZ questions
Answers to common identification and integration questions for this exact sensor.
What is the SICK part number for WLD4FP-213121A0ZZZ?
SICK lists numeric part number 1121472 for type WLD4FP-213121A0ZZZ.
What sensing principle does WLD4FP-213121A0ZZZ use?
WLD4FP-213121A0ZZZ uses retro-reflective, dual-lens system with a specified sensing range of 0–4.5 m.
What output and connection does it use?
It provides 1 push-pull pnp/npn output, uses light switching and connects by m8 connector, 3-pin.
Does WLD4FP-213121A0ZZZ support IO-Link?
No IO-Link interface is specified for this exact variant; it uses a conventional switching output.
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