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 breaker-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 Open Transition MCCB & MCS types of ATS also permits periodic testing of the emergency source without interrupting power to the loads and are available from 30 to 1000 amperes. Benefits ATC-300+ or ATC-900 microprocessor-based controller Durable powder-coated steel NEMA 1, NEMA 3R, NEMA 4 and NEMA 12 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. MCCB & MCS types of ATS also permits periodic testing of the emergency source without interrupting power to the loads Features At A Glance Product Features ATC-100, ATC-300+ or ATC-800 microprocessor-based controller Mechanical (cable) and electrical interlocking to prevent paralleling of sources Voltage and frequency sensing Multiple field programmable time delays Switch position indication Source availability indication Safe manual transfer under load Source 1 and Source 2 auxiliary contacts Programmable plant exerciser System test pushbutton Load Shed from emergency (ATC-800 only) Mimic diagram Mechanical (cable) and electrical interlocking to prevent paralleling of sources Safe manual operation under full load with permanently affixed operating handle Ambient temperature range: -40C to 40C (-40F to 104F)