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Double Shaft Design: Specifically configured to drive dual centrifugal wheels
the R120AAA-701 features high-grade electrical contacts capable of handling the inductive loads characteristic of PSC motors and single-phase condenser fan motors
01 replacement ensures proper fit and performance without field modifications
Common Questions What is the torque rating for the H-series cap screws
Dwyer Instruments 1640-0 Switch 318423-701 Double Shaft Design: Specifically configuredThe Dwyer Instruments 1640 0 Switch is a high precision differential pressure switch engineered for specialized HVACR applications requiring floating contact null switch logic. Unlike standard snap acting switches, the 1640 series utilizes a single pole double throw (SPDT) floating contact design to provide two distinct actuation pointshigh and lowwith a defined "null" zone in between. This makes it an ideal solution for motorized damper control and