The KEYENCE FS-N11CP is a compact fiber optic amplifier from the FS-N series engineered for high-speed, high-stability detection in industrial automation. With a PNP output and M8 connector in a head-unit configuration, it integrates smoothly into control cabinets and machine I/O, delivering reliable switching for small-part, edge, and presence detection on fast production lines.

A red 4-element 630 nm LED ensures a strong, clean signal, while selectable Light-ON/Dark-ON, multi-speed response (50 µs to 16 ms), and built-in timers (OFF delay, ON delay, one-shot) enable flexible control strategies. An external input, interference prevention, and expansion up to 16 units streamline multi-sensor installations. Protective circuitry (reverse polarity, overcurrent, surge absorption), high ambient light immunity, and an operating range from -20 to +55 °C support robust performance in demanding electrical panels, and low power consumption helps reduce panel heat load.

Whether you are retrofitting equipment or engineering new machinery, the FS-N11CP shortens commissioning and boosts uptime with stable detection in noisy environments, and for added peace of mind it is backed by a 1-year warranty.

• Brand: KEYENCE
• Series: FS-N
• Model: FS-N11CP
• Output type: PNP
• Output mode: Light-ON/Dark-ON selectable
• Supply voltage: 12 to 24 VDC ±10%
• Connection type: M8 connector (1 port)
• Response time: 50 µs to 16 ms