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-A-400-000 is an electronic pressure transmitter belonging to the HDA 4400 product group family, featuring a 400 bar input measuring range and a stainless steel connection material with fluorocarbon elastomer (FKM) seals. It operates on an 8 to 30 V DC supply voltage with a residual ripple of ≤ 5% and a current consumption of ≤ 25 mA, utilizing a male, 3 pole + PE electrical connection per EN175301-803. This model achieves a life expectancy of greater than 10 million cycles from 0 to 100% full scale, a torque value of 20 N·m (15 lb·ft), and shock resistance up to ≤ 100 g according to DIN EN 60068-2-6 within an operating temperature range of -25 to 85 ºC. Please 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 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-A-400-000. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.