WTB12-3P2431 Photoelectric Proximity Sensor 350mm PNP IP69K | SICK

The Original New SICK WTB12-3P2431 (1041411) is a photoelectric proximity sensor with background suppression from the W12-3 series, designed for reliable object detection independent of background in industrial automation environments. Its visible red LED light source produces a precise Ø 6 mm light spot at 200 mm, while the 5-turn potentiometer enables accurate sensing range adjustment. Housed in a robust metal enclosure rated IP66/IP67/IP69K, the sensor withstands high-pressure washdown and demanding industrial conditions. The PNP complementary output with light/dark switching and M12 4-pin connector ensure straightforward integration into control systems.

Core Engineering Highlights:
Photoelectric proximity sensor with background suppression | 20 mm … 350 mm maximum sensing range | Visible red LED, 640 nm | PNP complementary output, light/dark switching | ≤ 330 µs response time / 1,500 Hz switching frequency | 10–30 V DC supply voltage | IP66 / IP67 / IP69K metal housing | M12 4-pin connector | 15.6 × 48.5 × 42 mm | –40°C to +60°C operating temperature

Key Features:

• Original New SICK WTB12-3P2431 sensor (part no. 1041411)

• Background suppression photoelectric proximity sensor for reliable detection independent of background

• Visible red LED light source with Ø 6 mm light spot at 200 mm

• PNP complementary output with light/dark switching

• 5-turn potentiometer for sensing range adjustment

• Robust metal housing with PMMA front screen

• IP66 / IP67 / IP69K enclosure rating for high-pressure washdown environments

• M12 4-pin male connector for quick electrical connection

• Includes 2 × BEF-KH-W12 clamps with screws

Applications:

• Object presence and position detection on conveyor systems

• Packaging machinery for product verification

• Background-independent detection in industrial automation

• High-pressure washdown production areas

• General factory automation requiring reliable photoelectric sensing

Technical Specifications:

Footnotes:
¹ Object with 90% remission (based on standard white, DIN 5033).
² Average service life: 100,000 h at TU = +25°C.
³ Limit values, operation in short-circuit protected network max. 8 A.
⁴ May not exceed or fall short of UB tolerances.
⁵ Without load.
⁶ Signal transit time with resistive load.
⁷ With light/dark ratio 1:1.
⁸ A = UB connections reverse-polarity protected; C = interference pulse suppression; D = outputs overcurrent and short-circuit protected.

System Compatibility:

• Compatible with standard industrial controllers accepting PNP complementary outputs.

• M12 4-pin connector mates with standard M12 female cordsets.

• Configuration via on-device potentiometer; no software required.

• Mounts via the included BEF-KH-W12 clamps.

Related Products:

• WTB12-3P2433 – Alternative W12-3 variant (verify specific range/interface)

• WTB12-3P2441 – Extended sensing range version (20–600 mm)

• WTB12C-3P2433 – Variant with different connection or feature set

• BEF-KH-W12 – Mounting clamp (included with sensor, also available separately)

• YF2A14-xxxVB3XLEAX – M12 straight female cordset, 4-pin, various lengths

PLC ERA is an independent industrial automation distributor supplying genuine Original New products through established global supply channels. All products are factory sealed when applicable and undergo quality inspection prior to shipment. SICK and W12-3 are trademarks of SICK AG.