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Rectangular plastic sensor housing with M12 connector and mounting bracket

Sick

Sick WTB250-2F2441 Photoelectric Proximity Sensor PNP

SKU CH-1EN2-A1XZW

Rectangular photoelectric proximity sensor with background suppression detects objects at 150 mm to 500 mm using visible red light and provides a PNP output

  • Background suppression detects targets at 150 mm to 500 mm
  • Visible red LED simplifies alignment with Ø 30 mm spot at 500 mm
  • PNP light-switching output delivers 100 mA at 160 Hz switching frequency
  • IP67-rated ABS housing withstands –25 °C to +55 °C operation
  • M12 4-pin connector and supplied bracket enable quick installation

Industrial Photoelectric Sensor

The Sick WTB250-2F2441 is a rectangular photoelectric proximity sensor that uses visible red LED light with background suppression. It detects objects between 150 mm and 500 mm with a 30 mm light spot at the maximum distance. A two-turn potentiometer provides adjustment, and the PNP output switches on light detection with a 100 mA maximum current.

Suited for DC Automation Lines Needing IP67

This unit suits engineers building 10 V DC to 30 V DC control systems where an M12 4-pin connector and IP67 enclosure are required. It is not intended for applications that demand AC supply voltages, analogue output signals, or sensing ranges beyond 500 mm. The plastic ABS housing and PMMA optics also limit use in environments with aggressive chemical exposure.

Stable Switching Up to 160 Hz Within –25 °C to +55

The sensor maintains a 3 ms response time and 160 Hz switching frequency across its rated ambient temperature span of –25 °C to +55 °C. Power consumption stays at 35 mA, and built-in circuit protection guards against wiring faults. A BEF-W250 mounting bracket is included for rapid installation.

Highlights

  • Background suppression detects targets at 150 mm to 500 mm
  • Visible red LED simplifies alignment with Ø 30 mm spot at 500 mm
  • PNP light-switching output delivers 100 mA at 160 Hz switching frequency
  • IP67-rated ABS housing withstands –25 °C to +55 °C operation
  • M12 4-pin connector and supplied bracket enable quick installation

Specifications

BrandSICK
ModelSICK WTB250-2F2441

Questions about this item

What supply voltage must my system provide for the WTB250-2F2441 sensor?

The sensor operates on 10 V DC to 30 V DC with a maximum ripple of 5 Vpp, so your power supply must stay within that range.

Will the M12 4-pin connector on this sensor mate with my existing M12 cables?

Yes, the WTB250-2F2441 uses a standard male M12 4-pin connector compatible with common M12 4-pin cables.

How can I verify the sensor is detecting correctly after mounting and wiring?

Turn the 2-turn potentiometer until the output LED changes state at the desired distance; the sensor switches at up to 160 Hz with a 3 ms response time.

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