Belimo 01APS-50R Pressure Switch 326058-755 meeting strict UL 429 and

meeting strict UL 429 and NEMA 2 enclosure standards for field safety and performance

When servicing roof ventilators or inline fans

Check your specific control board version to confirm serial communication compatibility

Extreme Reliability: The bellows sensing element is designed for high repeatability over millions of cycles in demanding HVACR environments

the AFB24 is the engineered successor to the AFR24

Belimo 01APS-50R Pressure Switch 326058-755 meeting strict UL 429 andThe 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,