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Cylindrical M18 nickel-plated brass sensor, 78 mm long, M12 4-pin connector, red LED indicator

Sick

Sick VL18-3F3240 photoelectric retro-reflective sensor PNP

SKU CH-1TKB-BG6JS

A photoelectric retro-reflective sensor with 0.05 m to 3.7 m range, PNP output and IP67 metal housing for industrial detection

  • Detects objects up to 3.7 m away with visible red LED light
  • Adjust sensitivity precisely using 270° potentiometer for reliable operation
  • Fast 2 ms response time suits high-speed detection tasks at 250 Hz
  • Rugged IP67 nickel-plated brass housing withstands –25 °C to +70 °C environments
  • PNP light-switching output delivers 100 mA from 10–30 V DC supply

Sick VL18-3F3240 retro-reflective sensor

This cylindrical M18 photoelectric sensor uses a polarising filter and visible red LED to detect objects up to 3.7 m away. It operates on 10–30 V DC with a PNP light-switching output rated at 100 mA. The IP67-rated nickel-plated brass housing suits industrial automation and conveyor applications.

Sustained load behaviour

A 250 Hz switching frequency and 2 ms response time maintain consistent detection on fast-moving lines. The 30 mA current draw stays stable across the –25 °C to +70 °C temperature range. Circuit protection A, B, C and D guards against wiring faults during continuous operation.

Pre-installation checks

Verify your control system accepts a PNP output with a 4-pin M12 connector. Confirm the 10–30 V DC supply matches your available voltage rail. Ensure the 78 mm housing length and M18 thread fit the mounting bracket and clearance.

Highlights

  • Detects objects up to 3.7 m away with visible red LED light
  • Adjust sensitivity precisely using 270° potentiometer for reliable operation
  • Fast 2 ms response time suits high-speed detection tasks at 250 Hz
  • Rugged IP67 nickel-plated brass housing withstands –25 °C to +70 °C environments
  • PNP light-switching output delivers 100 mA from 10–30 V DC supply

Specifications

BrandSick
ModelSICK VL18-3F3240

Questions about this item

How much heat does the 30 mA sensor generate when powered continuously at 24 V DC?

The sensor draws 30 mA from a 10–30 V DC supply, so at 24 V it consumes under 1 W and has no moving parts, keeping heat negligible in its IP67 metal housing.

What cable or connector do I need to wire the M12 4-pin plug on this sensor?

A standard 4-pin M12 female cordset matches the male connector; the sensor requires a 10–30 V DC supply and a PNP-compatible input capable of 100 mA.

Will the visible red LED and 250 Hz switching work with my older PLC input card?

The sensor outputs a PNP light-switching signal at up to 250 Hz with a 2 ms response time, compatible with PLC inputs rated for that speed and voltage range.

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