CAT LEHE4651-04 manual Electrical Ratings, Performance Features

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AUTOMATIC TRANSFER SWITCH

CTS SERIES

AUTOMATIC TRANSFER SWITCH

The Cat® CTS Series Automatic Transfer Switch (ATS) is configurable for applications requiring the dependability and ease of operation found in

a full featured power contactor type transfer switch.

The CTS Series is equipped with the MX250 controller that is designed for the most demanding transfer or bypass switch applications.

FEATURES

ELECTRICAL RATINGS

Ratings 40 to 4000 amperes

2, 3 or 4 Poles

NEMA 1, 3R, 4, 4X and 12

Available to 600 VAC, 50 or 60 Hz

Suitable for emergency and standby

applications on all classes of load, 100% tungsten rated through 400 amps

UL 1008 listed at 480 VAC

CSA C22.2 No. 178 certified at 600 VAC

IEC 947-6-1 listed through 480 VAC

PERFORMANCE FEATURES

Contact transfer speed less than 100 milliseconds

High close-in and withstand capability

Temperature rise test per UL 1008 conducted after overload and endurance tests in unventilated enclosure – exceeds UL requirements

Equipped with the MX250 Control Package

DESIGN AND CONSTRUCTION FEATURES

Double throw, interlocked operation

Electrically operated, mechanically held by a simple, over-center mechanism

Silver alloy contacts with separate arcing contacts on 600 amp and above

Arc quenching grids, enclosed arc chambers, and wide contact air gap for superior source to- source isolation on all units

Control circuit disconnect plug and drive inhibit switch for safe maintenance

Components accessible for inspection and maintenance without removal of the switch or the power conductors

Mechanical indicator and contact chamber cover designed for inspection, safety and position designation

LEHE4651-04

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Contents Performance Features FeaturesDesign and Construction Features Electrical RatingsAmps CAT CTS Series of Automatic Transfer SwitchesDrive Mechanism Safe Manual Operation Neutral SwitchingTransferring Large Motor Or Highly Inductive Loads CTS Series ATSFeature Function Standard Features Mstd PackageOptional Packages CTS Series Accessory Group Matrix CTS Series Accessory DefinitionsCTS Series Accessory Definitions SW1 S5PSW2 SW3Application Notes CTS Series Dimensional SpecificationsNormal, Emergency