AUTOMATIC TRANSFER SWITCH

LEHE4651-04

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
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.
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