Johnson Controls 4683-TTM-1F Repeater 321894-708 System Protection: Acts as a

System Protection: Acts as a critical high-limit safety or operating control to prevent boiler over-firing

always verify that the 480V 90W rating matches the original equipment manufacturer's electrical requirements

this actuator is a direct technical superior for MF40-7043-501 replacements

including GSZ14 and CPKE series

Johnson Controls 4683-TTM-1F Repeater 321894-708 System Protection: Acts as aThe Johnson Controls 4683 TTM 1F Repeater is a critical component for maintaining signal integrity across extensive N2 Trunk networks. Engineered to operate on 115V AC, this RS 485 network repeater effectively doubles the maximum allowable distance for communication, allowing signals to travel an additional 4,000 feet. It is designed to overcome physical segment limitations by enabling the addition of up to 32 additional unit loads per MS TP bus