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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� rated and all control wire is #16 AWG, type XLPE with a 125� 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
Mechanical (cable) and electrical interlocking to prevent paralleling of sources
Safe manual operation under full load with permanently affixed operating handle
Ambient temperature range: -40°C to 40°C (-40°F to 104°F)
Operating temperature range: -20°C to 70°C (-4°F to 158°F)
Operating humidity: up to 90%
Relative humidity (non-condensing)
Source paralleling duration is limited to 100 msec or less
All controls relays and industrial grade relays are totally encapsulated to minimize exposure to dust and dirt. Lugs are 90º rated and all control wire is #16 AWG, type XLPE with a 125º temperature rating.
Enclosure
Durable powder-coated steel NEMA 1, 3R or 12 enclosures with three door hinges to ensure proper support of the door and door mounted devices. The hinges have removable hinge pins to facilitate door removal for easy wall mounting or service and are supplied with pad-lockable latches.
ATC Power Breaker & Case Switch Automatic Transfer Switch Optional Equipment
Get value and reliability that can only come from Caterpillar. Our new Cat® GC diesel generator sets offer the availability you need to keep your business running during a power outage.
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