Sick KT8L-P3656 Contrast Sensor
Sick KT8L-P3656 Contrast Sensor delivers ≤150 mm sensing distance, 655 nm laser light source, and PNP switching output performance. The KT8L-P3656 belongs to the Sick Contrast Sensor portfolio within the KT series from Sick, supporting 10–30 V DC supply voltage, 30 µs response time, IP67 enclosure rating, Ø 3 mm round light spot, large 30.4 x 53 x 80 mm housing, M12 5-pin connector, and –10 °C to +45 °C operating temperature.

| Brand | Sick |
| Product Type | Contrast Sensor |
| Product | KT8L-P3656 |
Sick KT8L-P3656 Contrast Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Dimensions (W x H x D) | 30.4 mm x 53 mm x 80 mm |
| Sensing distance | ≤ 150 mm |
| Sensing distance tolerance | - |
| Housing design | Large |
| Light source | Laser, red 2) |
| Wave length | 655 nm |
| Light spot size | Ø 3 mm 3) |
| Light spot direction | Round |
| Adjustment | Teach-in button |
| Supply voltage | 10 V DC ... 30 V DC |
| Response time | 30 µs 5) |
| Switching output | PNP |
| Switching mode | - |
| Enclosure rating | IP67 |
| Connection type | Male connector M12, 5-pin |
| Ambient operating temperature | –10 °C ... +45 °C |
The KT8L-P3656 Sick 655 nm Wave Length Contrast Sensor is designed for precise contrast detection in industrial automation environments. It operates with ≤150 mm sensing distance and uses a 655 nm red laser light source to generate a defined round light spot. The sensor provides PNP switching output and supports 10–30 V DC supply voltage for standard control cabinet integration. KT8L-P3656 is part of the KT series and built with IP67 protection.
In packaging machines, label detection systems, conveyors, and assembly automation lines, the KT8L-P3656 ensures stable recognition of print marks and contrast variations. The round Ø 3 mm light spot enables reliable detection over extended sensing distances. With a 30 µs response time, it supports high-speed production processes without signal delay.
The KT8L-P3656 Sick 655 nm Wave Length Contrast Sensor combines defined optical performance with mechanical durability. Its large housing format and M12 5-pin connection allow straightforward industrial installation. Sick maintains consistent electrical standards across the KT series, ensuring dependable contrast sensing performance in demanding factory applications.

