ATS ATC Breaker / Contactor ATC Contactor Based Bypass Isolation Automatic Transfer Switch

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Key Specs

Rating Range
100 to 1200A
100 to 1200A
Transfer Type
Bypass Isolation
Bypass Isolation
Switch Type
Contactor Based
Contactor Based

Overview

Cat® transfer switches are designed for a variety of standby power applications. They provide flexibility, reliability and value in a compact package. A Bypass Isolation Automatic Transfer Switch (ATS) provides fully functioning transfer in applications where emergency power to critical loads must be maintained at all times with no interruption. This type of design allows for inspection, maintenance or replacement of the power switching mechanisms with no interruption in electrical service. Contactor -based Bypass Isolation ATS are available from 100A to 1200A.

Benefits

ATC-300+ or ATC-900 microprocessor-based controller

Maintains fully automatic capability while in bypass mode (optional)

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

Product Specifications for ATC Contactor Based Bypass Isolation Automatic Transfer Switch

Rating Range 100 to 1200A 100 to 1200A
Transfer Type Bypass Isolation Bypass Isolation
Switch Type Contactor Based Contactor Based
Control Power 100-1200A 2-, 3-, 4-pole 100-1200A 2-, 3-, 4-pole
System Voltage Application 120 - 600 Vac, 50/60 Hz 120 - 600 Vac, 50/60 Hz
Withstand Up to 65 kAIC withstand Up to 65 kAIC withstand
Applicable Testing CSA C22.2 No. 178 certified
IBC 2006, CBC 2007 and OSHPD
CSA C22.2 No. 178 certified
IBC 2006, CBC 2007 and OSHPD

ATC Contactor Based Bypass Isolation Automatic Transfer Switch Standard Equipment

Controls and Wiring

  • 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 Contactor Based Bypass Isolation Automatic Transfer Switch Optional Equipment

Available Options

  • Space heaters
  • 2- or 4-position test switch
  • Multi-meter options available
  • Open, closed or delayed transition
  • Drawout capabilities on both ATS bypass portions and power switching devices completely interchangeable between ATS and bypass units
  • Load sequencing contacts
  • Dual drawout type is field configurable for top or bottom conduit entry
  • Field selectable, multi ratio, control voltage transformer 50/60 Hz
  • Seismic Zone 4 Qualified (BOCA, CBC, IBC, UBC and OSHPD)
  • Remote communications
  • Surge suppression
  • Selectable automatic or non-automatic operation

Optional Delayed Transition includes:

  • Time delay neutral
  • Pre-transfer signal with 1 N.O. and 1 N.C. contacts

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