AUTOMATIC TRANSFER SWITCH
LEXX0526-03
3
Interlocks and Indicators
Every CBTS Series Bypass-Isolation Transfer
Switch is supplied with all necessary electrical
and mechanical interlocks to prevent improper
sequence of operation as well as the necessary
interlocking circuit for engine starting integrity.
Each CBTS is furnished with a detailed step by
step operating instruction plate as well as the
following function diagnostic lights:
• Normal Source Available
• Emergency Source Available
• Bypass Switch in Normal Position
• Bypass Switch in Emergency Position
• Automatic Transfer Switch in Test Position
• Automatic Transfer Switch Isolated
• Automatic Transfer Switch Inhibit
• Automatic Transfer Switch Operator
Disconnect Switch “Off”
• Automatic Transfer Switch in Normal Position
• Automatic Transfer Switch in Emergency
Position
CBTSD Series – Delayed Transition
Transfer/Bypass-Isolation Switches
The CTSD Delayed Transition Transfer Switch
with a timed center-off position is available in a
bypass configuration. The CBTSD Series Bypass
incorporates the features of both the CBTS
Bypass-Isolation Switch and the CTSD unit for
transfer of large motor loads, transformers,
UPS systems or load shedding to a neutral
“Off” position. Reference the CTSD unit features
and operation discussion for more details.
CBTSCT Series – Closed Transition
Transfer/Bypass-Isolation Switches
The CTSCT Closed Transition Transfer Switch
may be applied with a bypass-isolation switch
for the utmost in reliability and versatility.
The CBTSCT Series provides the ability to
withdraw the transfer switch unit for maintenance
or inspection. Reference the CTSCT unit features
and operation discussion for more details.
