Turck Ni25U-CK40-AP4X2-H1141 Proximity Sensor

Description:

The TURCK NI25U-CK40-AP4X2-H1141 Proximity Sensor is used in industrial automation and machine control systems to provide non-contact detection of metallic objects using UPROX Factor 1 sensing technology and a PNP complementary output configuration. Commonly installed in conveyor systems, packaging machinery, material handling equipment, transfer systems, and automated production lines requiring long-range metal detection and reliable position feedback. Maintenance teams and system integrators use this part for sensor replacement, machine retrofits, automation upgrades, and OEM equipment repairs. 

Applications:

The TURCK NI25U-CK40-AP4X2-H1141 is designed for industrial proximity sensing applications where consistent detection performance across steel, aluminum, brass, and stainless steel targets is required without physical contact. It is frequently used in pallet conveyors, robotic work cells, automotive assembly systems, packaging equipment, and automated manufacturing lines where accurate object detection improves machine reliability and reduces mechanical wear. The UPROX technology provides equal sensing distances for all metals while offering resistance to magnetic fields and harsh industrial environments.

Technical Specifications:

• Manufacturer: TURCK
• Model / Part Number: NI25U-CK40-AP4X2-H1141
• Product Type: Inductive Proximity Sensor
• Sensor Technology: UPROX Factor 1 Inductive Sensor
• Housing Style: Rectangular CK40 Housing
• Housing Dimensions: 65 × 40 × 40 mm
• Sensing Distance: 25 mm nominal
• Output Type: PNP transistor output
• Output Function: Complementary (NO + NC)
• Supply Voltage: 10-65 VDC
• Rated Load Current: 200 mA maximum
• Switching Frequency: 250 Hz typical
• Connection Type: 4-pin M12 male connector (H1141)
• Mounting: Flush installation
• Housing Material: PBT-GF20-V0 reinforced plastic
• Active Face Material: PA12-GF30
• Protection Rating: IP68
• Operating Temperature: -30°C to +85°C
• LED Indicators: Green power LED and yellow switching LED
• Special Features: UPROX sensing for all metals, magnetic field resistance, self-compensating pre-damping protection, rotatable sensing face, short-circuit protection, reverse polarity protection
• Application: Metal object detection, machine positioning, and industrial automation control systems.

Common Replacements:

• TURCK NI25U-CK40-AP6X2-H1141
• TURCK NI20U-CK40-AP4X2-H1141
• TURCK NI35U-CK40-AP4X2-H1141