Caterpillar Automatic Transfer Switch LEXX0526-03 - Manual

AUTOMATIC TRANSFER SWITCH
LEXX0526-03
FEATURES
ELECTRICAL RATINGS
● Ratings 100 to 4000 amperes
● 2, 3 or 4 Poles
● NEMA 1, 3R, 4, 4X and 12
● Available with CTS, CTSD and CTSCT Series
Transfer Switch
● Bypass and transfer switch have identical ratings
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 at 480 VAC
PERFORMANCE FEATURES
● Load is not interrupted during bypass operation
● High close-in and withstand capability
● Temperature rise test per UL 1008 conducted after
overload and endurance tests in unventilated
enclosure – exceeds UL requirements
DESIGN AND CONSTRUCTION FEATURES
● Transfer switch is located on a draw out mechanism to
facilitate maintenance
● Emergency power systems can be electrically tested
without disturbing the load
● Power cables do not have to be disconnected to
remove transfer switch
● Bypass to any available source with transfer
switch removed
● Engine start circuit maintained during bypass
operation; normal power failure causes engine
start contact closure even with the ATS removed
● Diagnostic lights and detailed instructions for
simple step by step operation
● Mechanical and electrical interlocks ensure proper
sequence of operation
● Bypass switch contacts are closed only during the
bypass-isolation operation
● Silverplated copper bus interconnection of the
transfer and bypass switches on all sizes
Transfer/Bypass-Isolation Switches
The automatic transfer switch is a key element in
any emergency power system. The importance
of the transfer switch increases as the need for
dependable power grows. Though designed to
give consistent operation, the automatic transfer
switch must be periodically maintained to
ensure proper operation and system reliability.
Maintenance of the entire system is called for in
the National Electrical Code Article 700-4, NEMA
Standard ICS2-447 and in NFPA 99.
CBTS SERIES –
SUPPLEMENT
OPEN TRANSITION
BYPASS SWITCH