Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Festo
The Festo part number 553559 is an optoelectronic fork light barrier utilizing red light to measure position with a repetition accuracy of 0.02 mm and a hysteresis of 0.1 mm. It features configurable switching outputs supporting push-pull, NPN, and PNP functions with pulsed short-circuit protection, a maximum switching frequency up to 8000 Hz, and a minimum object diameter down to 0.3 mm depending on the selected operating mode. This RoHS compliant component operates within an ambient temperature range of -25 °C to 60 °C and carries RCM compliance, c UL us listing, CE marking per EU EMC and RoHS directives, and UKCA marking for UK EMC and RoHS instructions. Submit the exact part number, quantity, and application requirements to request a quote for this component.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Festo references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Festo 553559. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.