Stauff EPS-1 Pressure Switch

Stauff EPS-1 is an IP65-rated electrical pressure switch designed for hydraulic return-line monitoring in spun-on filter systems. It features a 1/8" NPT (MNPT) process connection and a 250 VAC electrical rating, with terminals specified for up to 6 A at 125/250 VAC. The device is described as an electrical clogging indicator, making it ideal for signaling when a hydraulic return-line filter is becoming restricted. The switching point is adjustable in the range of roughly 5 to 35 psi, while the system can tolerate pressures up to 350 psi, enabling use across common hydraulic circuits without exceeding recommended limits. Built for durability, EPS-1 uses a steel housing and Buna-N (NBR) diaphragm to resist oil, dirt, and temperature variation typical of industrial environments. The unit is designed for DIN 43650-compatible electrical connections and provides robust IP65 protection against dust and water jets, ensuring reliable operation in harsh environments or outdoor installations. Overall, EPS-1 provides a compact, field-adjustable monitoring solution that integrates with standard hydraulic filtration setups to alert maintenance personnel when flow paths or filter elements require service or replacement.