Lochinvar & A.O. Smith 100327064 Switch 328140-751 Key Benefits Enhanced Thermal Rating:

Key Benefits Enhanced Thermal Rating: The Class F insulation provides a high ceiling for ambient and fluid temperature extremes

or the system triggering a high-limit fault code

Key Benefits Dual Primary Configuration: Compatible with both 208V and 240V power supplies for increased inventory flexibility

preventing air binding and ensuring efficient heat transfer throughout your steam system

preventing leaks under cyclical load conditions

Lochinvar & A.O. Smith 100327064 Switch 328140-751 Key Benefits Enhanced Thermal Rating:The Lochinvar & A. O. Smith 100327064 Switch is a critical OEM replacement part designed for high performance commercial and residential heating systems. As a primary main power switch, this component ensures the safe manual isolation of the 120V circuit, allowing contractors to perform maintenance or diagnostic checks without fully depowering the mechanical room's sub panels. Engineered for seamless HVAC system integration, it maintains the