Relay outputs provide low and line-voltage on/off control for devices and equipment in the controlled systems. Each relay is a single-pole, double-throw (SPDT) set of dry contacts.
Note: The System 450 output relays are SPDT dry contact relays only and do not provide
any power source for the controlled equipment.
See Technical Specifications for output relay electrical rating information. See Table 1 for information on the System 450 control modules with this feature.