WTB9-3P2261 Photoelectric Proximity Sensor 350mm PNP IP69K | SICK

The Original New SICK WTB9-3P2261 (1049047) is a photoelectric proximity sensor from the W9-3 series, featuring background suppression for reliable, colour-independent object detection in industrial automation. Its compact 12.2 × 49.8 × 23.6 mm rectangular housing is built with SICK's rugged VISTAL® plastic, rated IP66/IP67/IP69K for demanding washdown environments. A PinPoint LED light source (650 nm) produces a precise Ø 4.5 mm light spot at 75 mm, while the 5-turn potentiometer enables accurate sensing range adjustment. The sensor delivers a PNP complementary output (light/dark switching) with a fast 333 µs response time and 1,500 Hz switching frequency, making it suitable for high-speed detection tasks on conveyor systems, packaging lines, and general factory automation. M8 4-pin connector for quick installation.

Core Engineering Highlights:
Background suppression photoelectric proximity sensor | 20 mm … 350 mm maximum sensing range (20–200 mm on low-reflectance targets) | Visible red PinPoint LED, 650 nm | PNP complementary output, light/dark switching | < 333 µs response time / 1,500 Hz switching frequency | 10–30 V DC supply voltage | IP66 / IP67 / IP69K VISTAL® housing | M8 4-pin connector | 12.2 × 49.8 × 23.6 mm | –40°C to +60°C operating temperature

Key Features:

• Original New SICK WTB9-3P2261 sensor (part no. 1049047)

• High-performance background suppression for reliable detection in complex environments

• Wide sensing range up to 350 mm with precise PinPoint LED light

• Rugged VISTAL® housing for high mechanical stability and chemical resistance

• M3 mounting hole for versatile installation

• Comprehensive IP66, IP67, and IP69K protection ratings for harsh conditions

• PNP complementary output with light/dark switching

• 5-turn potentiometer for sensitivity adjustment

• Fast response time < 333 µs and switching frequency up to 1,500 Hz

Applications:

• Object presence and position detection on conveyor systems

• Packaging machinery for product verification and sorting

• Background-independent detection in space-constrained machinery

• High-speed detection tasks in automated assembly lines

• General factory automation and OEM equipment requiring reliable photoelectric sensing

Technical Specifications:

Footnotes:
¹ Object with 90% remission (based on standard white, DIN 5033).
² Object with 6% remission (black).
³ Average service life: 100,000 h at T_a = +25°C.
⁴ Limit values, operation in short-circuit protected network max. 8 A.
⁵ May not exceed or fall short of U_B tolerances.
⁶ Without load.
⁷ Q = light switching.
⁸ At ambient temperature > 50°C, I_max. = 50 mA.
⁹ Signal transit time with resistive load.
¹⁰ With light/dark ratio 1:1.
¹¹ A = U_B connections reverse-polarity protected; B = inputs and output reverse-polarity protected; C = interference pulse suppression.

System Compatibility:

• Compatible with standard industrial controllers accepting PNP complementary outputs.

• M8 4-pin connector mates with standard M8 female cordsets.

• Configuration via on-device 5-turn potentiometer; no software required.

• Mounts via the integrated M3 mounting hole.

Related Products:

• WTB9L-3P2261 (1058230) – Laser version with 25–300 mm sensing range and 0.025 mm minimum resolution

• WTB9-3N2261 – NPN output version of the same sensor family

• WTB9-3P2261S01 – Variant with M12 4-pin connector

• BEF-W9A – Mounting bracket for W9 series sensors

• YF8U14-xxxVB3XLEAX – M8 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 W9-3 are trademarks of SICK AG.