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.

Hydac
The Hydac HDA 4445-B-400-000 is an electronic pressure transmitter belonging to the HDA 4400 product group family with a 400 bar input measuring range. This model features a stainless steel connection, a fluorocarbon elastomer (FKM) seal, and a male 3-pole plus PE electrical connection adhering to EN175301-803 with a supplied mating connector. Operating on a DC supply voltage of 12 to 30 V with a residual ripple of $\le$ 5% and a current consumption of $\le$ 25 mA, it delivers a life expectancy of over 10 million cycles from 0 to 100% full scale. Submit the exact part number, quantity, and application requirements for 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 Hydac references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Technical library
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 Hydac HDA 4445-B-400-000. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.