The Leuze HT3C-350F/4P-200-M8 (Global Part Number: 50133593) diffuse reflection sensor with background suppression is a miniature high-precision optoelectronic device belonging to the acclaimed Series 3C engineered by Leuze (Germany) – a global pioneer in intelligent sensing and machine safety automation. Designed specifically for tight installation spaces, this model comes with a factory-preset detection threshold to drastically streamline machine assembly, eliminate manual calibration time, and prevent accidental tampering during ongoing factory operations.

The centerpiece of the Leuze HT3C-350F/4P-200-M8 is its specialized focused optical beam path with a fixed focal distance at 200 mm and a permanently set operating range calibrated at 350 mm (0.35 m). Combining cutting-edge background suppression (BGS) triangulation with a 633 nm pulsed visible red LED, the sensor achieves an exceptionally low black-white error of less than 10% up to a 220 mm distance. This enables dependable, bounce-free detection of challenging workpieces, dark-colored components, and glossy packaging materials without being affected by adjacent mechanical backgrounds moving directly behind the target plane.

In terms of processing performance and environmental endurance, the HT3C-350F/4P-200-M8 boasts a high switching frequency of 1,000 Hz with a lightning-fast 0.5 ms response time (166 µs response jitter), making it an ideal choice for high-throughput packaging, robotic pick-and-place, and sorting lines. The miniature housing is molded from high-grade PC-ABS plastic with a scratch-resistant PMMA lens cover, achieving IP67 and IP69K ingress ratings alongside stringent ECOLAB chemical resistance certification across an ambient temperature envelope of -40°C to +60°C. Equipped with dual PNP transistor switching outputs (Light/Dark complementary switching), integrated short-circuit and reverse polarity protection, and a 200 mm PUR cable terminating in a 4-pin M8 connector, the sensor provides seamless mechanical and electrical integration.

• Brand: Leuze (Germany)
• Product Series: Series 3C
• Part Number: HT3C-350F/4P-200-M8 (50133593)
• Operating Principle: Diffuse reflection principle with background suppression (BGS)
• Special Version: Permanently set operating range
• Beam Path: Focused beam path
• Focal Distance: 200 mm
• Light Source: Visible Red LED, pulsed transmission
• Wavelength: 633 nm
• LED Risk Group: Exempt group (acc. to EN 62471)
• Light Spot Geometry: Round
• Operating Range (White 90%): 0.005 ... 0.35 m (5 ... 350 mm)
• Operating Range Limit: 0.005 ... 0.35 m (Permanently set at 0.35 m)
• Black-White Error: < 10% (up to 220 mm scanning distance)
• Operating Supply Voltage (UB): 10 ... 30 V DC (incl. residual ripple 0 ... 15%)
• Open-Circuit Current: 0 ... 15 mA
• Number of Digital Outputs: 2 outputs
• Switching Element: PNP Transistors
• Switching Principles: Output 1: Light switching, Output 2: Dark switching
• Maximum Output Load Current: 100 mA
• Switching Frequency: 1,000 Hz
• Response Time: 0.5 ms
• Response Jitter: 166 µs
• Readiness Delay: 300 ms
• Protective Circuits: Short-circuit protection & Polarity reversal protection
• Display Indicators: 2 status LEDs
• Electrical Connection: 200 mm PUR cable with M8 4-pin male connector
• Housing Construction: Miniature Cubic design
• Housing Dimensions (W x H x L): 11.4 mm x 34.2 mm x 18.3 mm
• Housing Material: Plastic (PC-ABS, Industrial Red)
• Lens Cover Material: Plastic (PMMA)
• Net Weight: 20 g
• Mounting Method: Through-hole mounting (Recommended M3 screw torque: 0.9 N·m)
• Degree of Protection: IP67, IP69K
• Material Compatibility: ECOLAB certified
• Protection Class: Class III
• Standards & Certifications: cULus, IEC 60947-5-2
• Ambient Operating Temperature: -40 °C to +60 °C
• Storage Temperature: -40 °C to +70 °C