Slant Fin 440-856-000 Pressure Switch This is an SPST (Single
Baker’s notes & crumb story
Description
Slant Fin 440 856 000 Pressure Switch This is an SPST (Single This is an SPST (Single Pole Single Throw) switch with a Normally Open (NO) contact function that closes on rising pressure This HVAC safety switch utilizes a SPST (Single Pole Single Throw) configuration to interrupt the 120V circuit