Description click to view larger image The ATC550 on/off PID temperature controller comes standard with a dual 4 digit 7 segment led display, TC / RTD input, two setpoints, celsius and Fahrenheit selectable scale, field selectable control output (relay or SSR), auxiliary output (relay or SSR depending on model), led indicators, 1/16 din (48 x 48 mm) housing, contact ratings of 5a @ 230vac / 30vdc resistive for control and alarm, a 12vdc SSR drive and a supply operating voltage range of 85 to 270 vac/dc (50/60Hz). The ATC550 series is UL approved and CE certified. Automatic Timing & Controls (ATC) Model ATC550 TC/PID Controller 1/16 DIN Dual 4-digit, seven-segment LED display PID & On/Off control Thermocouple and RTD input °C / °F selectable Two setpoints Field selectable Control Output (Relay or SSR) Auxiliary Output – factory-installed Relay or SSR 1/16 DIN Case, IP65 Front Catalog-Page-6 ATC-550-Datasheet
