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Black rectangular inductive sensor with M12 connector, 65 by 40 by 40 mm

Turck

Turck NI50U-CK40-AN6X2-H1141 Inductive Sensor NPN

SKU CH-H853-GSEFG MPN NI50U-CK40-AN6X2-H1141

A rectangular inductive sensor with 50 mm switching distance, NPN output and IP68 protection for reliable metal detection

  • TypeTest Equipment
  • Item Count1 pack
  • Selling UnitBox
  • Parts3 Years
  • Labor1 Year
  • 50 mm switching distance detects all metals equally
  • Variable 5-direction active face simplifies mounting
  • IP68 protection withstands harsh environments
  • Magnetic field resistance ensures reliable operation
  • 10-30 VDC supply suits standard industrial power

Rectangular inductive sensor for metal detection

The Turck NI50U-CK40-AN6X2-H1141 is a rectangular inductive sensor designed to detect all metals at the same switching distance. It suits automation engineers who need reliable presence sensing on conveyors, robots or machine tools. The NPN normally-open output connects directly to PLC inputs. Buyers who require a PNP output or an analogue signal will need a different sensor type.

Rated switching distance 50 mm

The sensor offers a rated switching distance of 50 mm and maintains factor 1 across steel, aluminium, copper and brass, so no correction factors are needed. It operates on 10 to 30 VDC from a three-wire DC supply. The active face can be oriented in five directions, giving flexibility when mounting space is restricted. The sensing range cannot be extended beyond the rated 50 mm.

IP68 protection with magnetic-field resistance

The PBT-GF20-V0 housing meets IP68, resisting water ingress during wash-down and high-humidity environments. Built-in resistance to magnetic fields prevents false triggers near welding equipment or large motors. Auto-compensation guards against pre-attenuation when metal chips accumulate on the active face. High-luminance corner LEDs show supply voltage and switching state from any viewing angle. The M12 × 1 male connector simplifies wiring in the field.

Highlights

  • 50 mm switching distance detects all metals equally
  • Variable 5-direction active face simplifies mounting
  • IP68 protection withstands harsh environments
  • Magnetic field resistance ensures reliable operation
  • 10-30 VDC supply suits standard industrial power

Specifications

BrandTURCK
ModelNI50U-CK40-AN6X2-H1141 1625823
TypeTest Equipment
Item Count1 pack
Selling UnitBox
Parts3 Years
Labor1 Year

Questions about this item

Will the M12 × 1 connector on this CK40 sensor mate with the M12 cables already installed on our older PLC I/O modules?

Yes, the sensor uses a standard M12 × 1 male connector, so it will plug directly into existing M12 cable sockets on legacy PLC I/O modules without adapters.

How can I verify the NPN output is switching correctly once the sensor is mounted and powered?

Apply 10…30 VDC, bring a metal target within the 50 mm rated switching distance, and confirm the high-luminance corner LEDs change state to indicate the NO contact has closed.

Does the box include the M12 mating cable or mounting brackets, or must they be ordered separately?

The box contains only the sensor (order number 1625823); M12 mating cables and mounting brackets are not included and must be purchased separately.

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