Johnson Controls C450SCN-4C 450 Expansion Module 2 SPDT Relay

The Johnson Controls C450SCN-4C is a versatile 450 extension module that enhances the capability of HVAC control solutions. Due to its two SPDT relays, this expansion module provides more options of control and also allows the integration into existing circuits. There is enhanced capability in the module that enables it to manage different zones or device, thus enhancing the interactivity of the system. This extension module offers users more control flexibility, better operation, as well as increased efficiency of their HVAC systems.