Dwyer Instruments 1996-5 Pressure Switch 320074-702 The SPDT (Single Pole Double
Platform notes & fabric story
Description
Dwyer Instruments 1996 5 Pressure Switch 320074 702 The SPDT (Single Pole Double The SPDT (Single Pole Double Throw) configuration provides versatile signaling for both control and alarm circuits preventing evaporator icing and insufficient refrigerant feed