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CTS Series Automatic Transfer Switch
CTS Series Automatic Transfer Switch
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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.

Standard Equipment

Technical Summary

Rating Range
40 to 4000A
Transfer Type
Open transition
Switch Type
Contactor Based

Electrical Ratings

Control Power
40 to 4000 amperes, 2, 3 or 4 Poles
Enclosure Capability
NEMA 1, 3R, 4, 4X and 12
System Voltage Application
Available to 600 VAC, 50 or 60 Hz
Applicable Testing
UL 1008 listed at 480 VAC
CSA C22.2 No. 178 certified at 600 VAC
IEC 947-6-1 listed through 480 VAC
  • The Cat CTS Series of Automatic Transfer Switches
  • 40-4000 Amps:
  • 100-4000 Amps:
  • All CTS products meet or exceed industry requirements to allow specification and installation with confidence.
  • CTS Series Method of Operation
  • Drive Mechanism