Keyence FS-N42N | NPN Expansion Fiber Amplifier

Keyence FS-N42N | NPN Output Expansion Amplifier Unit for Fiber Optic Sensors (Cable Type)

Overview

The Keyence FS-N42N is an NPN expansion amplifier unit for use with FS-N Series fiber optic sensor systems. It is a cable-type model, designed to connect seamlessly to a main unit (like FS-N11N) to expand the number of sensing points while maintaining compact installation on DIN rails.

With high-speed response, easy configuration, and multi-unit connectivity, the FS-N42N is ideal for applications requiring dense sensor arrangements and reliable signal detection in high-speed industrial automation.

Key Features

• NPN Output Type – Compatible with NPN logic control systems

• Cable Type Connection – Built-in cable for direct wiring

• Expansion Unit – Requires a main amplifier (e.g., FS-N11N) to operate

• Ultra-Fast Response – Up to 50 µs for high-speed detection

• Space-Saving DIN Rail Mounting – 9 mm width for dense installations

• One-Touch Teaching & LED Display – Simplifies setup and operation

• Automatic Interference Prevention – Allows close sensor placement

Technical Specifications

• Model: FS-N42N

• Type: Expansion amplifier (NPN, cable type)

• Output: NPN open-collector

• Response Time: 50 µs (Ultra-fast mode)

• Connection Type: 2-meter cable

• Power Supply: Supplied from main amplifier

• Display: Digital LED display

• Mounting: DIN rail

• Protection Rating: IP40 (amplifier), IP67 (sensor head)

• Dimensions: 9 mm (W) × 69.5 mm (H) × 52.5 mm (D)

• Compatible Sensor Heads: FU Series

Applications

• Multi-Point Sensing – Expand sensing capacity in compact panels

• High-Speed Assembly Lines – Reliable detection of fast-moving parts

• Electronics Manufacturing – Dense installation in tight spaces

• Packaging Equipment – Synchronized detection in multi-sensor systems

Why Choose the Keyence FS-N42N?

• Cost-effective expansion for NPN control systems

• Compact, high-speed solution for multi-sensor setups

• Reliable performance with easy-to-use interface

Order Now

In stock and ready for fast international shipping. Main amplifier (e.g., FS-N11N) sold separately.

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply