Automatic transfer switch

closed circuitemergency power supply4-pole

Cat® transfer switches are designed for a variety of standby power applications. They provide flexibility, reliability and value in a compact package. The open transition power case switch-based Automatic Transfer Switch (ATS) will provide fully functioning transfer in applications where a momentary loss of power is acceptable on retransfer from emergency to normal power supply. The Cat power case switch-based ATS also permits periodic testing of the emergency source without interrupting power to the loads and are available from 200 to 5000. Benefits ATC-900 microprocessor-based controller and Power Breaker Fastest switching times available (<3 cycles) Full 60-cycle short time withstand capability All controls relays and industrial grade relays Lugs are 90°C rated and all control wire is #16 AWG, type XLPE with a 125°C temperature rating. Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges. The hinges have removable hinge pins to facilitate door removal and are supplied with pad-lockable latches Features At A Glance Product Features ATC-800 microprocessor-based controller Voltage and frequency sensing Fastest switching times available (<3 cycles) Full 60-cycle short time withstand capability Multiple field programmable time delays Switch position indication Source availability indication Safe manual transfer under load Source 1 and 2 auxiliary contacts Programmable plant exerciser System test pushbutton Load shed from emergency Mimic diagram True RMS three phase voltage sensing on Source 1, Source 2 and Load Frequency sensing on Source 1 and Source 2