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Universal Mounting: Includes a collar for streamlined installation on 4-inch single-wall vent pipes
What causes a pressure switch like the 203933 to trip
High-Visibility Dial: The 3
The NS2 series is engineered for high-static applications where maintaining accurate pressure switch trip points is critical for safety and efficiency
The enclosed body design protects internal components from dust and debris
Schneider Electric (Barber Colman) M313A01 Actuator 30067439-890 Universal Mounting: Includes a collarThe Schneider Electric M313A01 Actuator (formerly Barber Colman) is a high performance proportional valve actuator designed for precise flow control in demanding HVACR environments. Engineered for 24V AC operation, this spring return (SR) unit is normally open (N O), ensuring a safe fail position for hot or chilled water applications. As a SmartX Smart X actuator, it is the direct replacement for M113A01 models, offering a seamless upgrade with tool