Description
The Relay Module, P/N 55-043 & 55-048, provides two sets of Form “C” dry relay contacts that switch together (DPDT). These contacts can be used to initiate emergency control functions (i.e., damper closure, fan control, door holder interface, elevator recall, etc.). There is also an input that is capable of monitoring a dry set of contacts for open or closed conditions. The module has a multi-color LED that will illuminate a unique color for instant status indication (Green for normal operation, Red for device active, and Yellow for device trouble). The isolator version of the module, P/N 55-048, provides complete short circuit isolation for installations requiring NFPA, Class X wiring.