SICK WL150-P420 6020688 Retro-reflective Photoelectric Sensor

SICK WL150-P420 is a retro-reflective photoelectric sensor from the W150 miniature series. Designed for applications where space is limited and detection of transparent objects is required. PNP output with light/dark switching selectable via L/D control cable. 10‑30 V DC supply voltage, 0.01‑0.7 m sensing range (PL80A reflector), 270° potentiometer for sensitivity adjustment. M8 4‑pin male connector.

This product has been discontinued by the manufacturer. An equivalent successor model is currently available. Before ordering, please verify the exact features and specifications of the recommended alternative model.

Applications:

• Object detection on high‑speed automated lines

• Transparent object detection on packaging and bottling lines

• Conveyor systems for part positioning and sorting

• Material handling and logistics automation

• Space‑constrained pick‑and‑place and assembly stations

Core Specifications:

• Functional principle: Photoelectric retro-reflective sensor (dual lens)

• Sensing range: 0.01 m … 0.7 m (typical)

• Light source: LED, visible red light

• Supply voltage: 10 … 30 V DC

• Switching output: PNP

• Switching mode: Light/dark switching (selectable via L/D control cable)

• Output current: ≤ 100 mA

• Response time: ≤ 0.5 ms

• Switching frequency: 1,000 Hz

• Connection type: M8 male connector, 4‑pin

• Adjustment: Potentiometer, 270°

• Enclosure rating: IP67

Advanced Specifications:

• Housing material: Plastic (ABS)

• Optics material: Plastic (PMMA)

• Dimensions (W × H × D): 10 mm × 28 mm × 17.5 mm

• Ambient operating temperature: –25 °C … +55 °C

• Storage temperature: –40 °C … +75 °C

• Beam angle: approx. 7.5°

• Light spot diameter: data not specified

• Protections: reverse polarity protection, short circuit protection

• Polarising filter: Integrated

• Special feature: Detecting transparent objects

• Standard reflector required for operation (e.g., PL80A, P250)

System Integration:

• Belongs to SICK W150 series of miniature photoelectric sensors. Mounting brackets are delivered with the product.

• Wire the M8 4‑pin male connector (pin 1: V+, pin 3: V‑, pin 4: output) to a PLC input according to light‑on/dark‑on selection.

• Adjust sensitivity for optimal detection using the 270° potentiometer.

• The yellow LED indicates switching status; the green LED indicates power/function stability.

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• PL80A – fine triple reflector (suitable for max. range)

• P250 – 47 × 47 mm rectangular reflector (standard applications)

• YF2A14‑xxxVB3XLEAX – pre‑assembled M12 connection cable (not M8) – cross‑check before use

• WL100‑2P4429 – potential alternative (verify specifications before ordering)

• Recommended successor: check current SICK catalogue for the appropriate contemporary retro‑reflective sensor