Keyence FS-V21

Name: Keyence FS-V21 Fibre Amplifier, Cable Type, Main Unit, NPN
Brand: Keyence
SKU: FS-V21

Keyence FS-V21 Fibre Amplifier, Cable Type, Main Unit, NPN

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Keyence FS-V21 FS-V21 Fibre Amplifier, Cable Type, Main Unit, NPN — Optical & Photoelectric Sensors

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Product Description

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The Keyence FS-V21 Fibre Amplifier is a high-performance, cable-type main unit designed for precise and reliable detection applications. Featuring a red LED light source and multiple response time settings, including FINE, TURBO, SUPER TURBO, ULTRA TURBO, HIGH RESOLUTION, and HIGH SPEED, this amplifier ensures optimal performance in various conditions. The unit offers a shift function with a maximum ±1,999 variable range and versatile timer functions such as OFF-delay, ON-delay, and one-shot timers.

With an NPN open collector output rated at 40 V and 100 mA max, the FS-V21 provides robust control capabilities. The amplifier operates on a power voltage of 12 to 24 VDC with low power consumption modes, including Normal, ECO half, and ECO all, making it energy-efficient. The unit is built to withstand harsh environments, with resistance to ambient light, temperature variations, vibration, and shock.

Constructed from durable polycarbonate, the FS-V21 is compact and lightweight, making it easy to integrate into various industrial applications. It complies with CE Marking and UL Listing standards, ensuring high quality and safety.

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Offer details

Best offer from:: Trusted supplier — Poland, member since 2022, 1–4 employees
Availability:: 4 pcs.
In-Stock
Updated at: 08-09-2026
Warranty:: 3 months
Condition:: Used

Used - A previously used item with possible signs of cosmetic wear. It is fully operational and functions as intended, though the original packaging may be missing.

The Seller is responsible for shipping the product and invoicing

Specifications

Brand: Keyence
Model: FS-V21
Type: Main unit: 1-output with cable
Light source: Red LED
Response time: 250 µs (FINE) /500 µs (TURBO) /1 ms (SUPER TURBO) /4 ms (ULTRA TURBO) /500 µs (HIGH RESOLUTION) /50 µs (HIGH SPEED)
Shift function: Max. ±1,999 (variable)
Timer function: Mode Timer OFF, OFF-delay timer, ON-delay timer, and one-shot timer (1 to 500 ms)