Siemens Industrial Controls 3UG5616-1CR20 Relay 320788-702 and domestic hot water loops
Baker’s notes & crumb story
Description
Siemens Industrial Controls 3UG5616 1CR20 Relay 320788 702 and domestic hot water loops and domestic hot water loops where mechanical reliability is paramount This HVAC pillow block bearing utilized a 52100 steel insert with a black oxide inner ring to enhance corrosion resistance in humid duct environments