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 5251387 is an industrial component built in accordance with EN 61984 featuring a straight M23x1 hybrid socket with 15 pins and 12 occupied positions on the field device side, and an RJ45 and open-end connector with 14 pins and 12 occupied positions on the control side. This part operates across a DC voltage range of 0 V to 850 V and an AC voltage range of 0 V to 630 V, supporting a current rating of 23.7 A at 40Þg C and a surge resistance of 6 kV. Electrical connection 1 utilizes a round design with a screw-type lock and no label holder on the cable designation, while electrical connection 2 uses a straight cable outlet. Submit the exact part number, quantity, and application requirements to request a quote.
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 5251387. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.