and commercial air handlers where quiet

vibration-free operation in high-RPM applications

Durable Hermetic Seal: Rugged internal components reduce mechanical wear and extend operational life in commercial environments

The direction of the spring return fail-safe is determined by the mounting orientation (CW or CCW) on the damper shaft

built to withstand standard refrigerant circuit pressures

Belimo 01APS-50R Pressure Switch 326010-701 and commercial air handlers whereThe Belimo 01APS 50R is a field adjustable differential pressure switch engineered for precision monitoring of air and non combustible, non aggressive gases in commercial HVAC systems. This passive duct sensor provides critical feedback for overpressure, vacuum, and differential pressure applications with a tunable setpoint range of 0. 08 to 1. 20 inches WC (20 to 300 Pa). Designed for high reliability air flow proving and filter status monitoring,