"Intelligent Control" Solid State Relay Assemblies can interface with a variety of control input signals. Rated for loads up to 100 A at a maximum 40°C ambient temperature, nine different models are available to meet the needs of a wide variety of applications. The assemblies consist of Solid State Relays attached to anodized aluminum heat sinks, appropriately engineered to assure reliable operation at rated power levels and temperatures. A DIP switch on each unit allows the following selection of control inputs: 1-135 ohms, 4-20 mA, 0-5 V, 0-10 V, or from potentiometer command signals. Four cycle times are available: 200 milliseconds, 1 second, 10 seconds, and 100 seconds. Models are available for the following line voltages: 24-280 VDC, 48-530 VAC, and 48-530 VDC.