CTS Series Automatic Transfer Switch

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

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
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

Standard Equipment:

The Cat CTS Series power contactor type transfer switch makes use of a fully programmable / configurable microprocessor-based controller to allow the utmost in application flexibility. Further, the CTS Series is offered in a wide array of configurations enabling it to meet the needs of even the most highly critical load.Available configurations include:

CTSD Delayed Transition Transfer Switches
CTSM Manual Transfer Switches
CTS Automatic Transfer Switches

CTSCT Closed Transition Transfer Switches
CBTSD Delayed Transition Bypass Switches
CBTSCT Closed Transition Bypass Switches
CBTS Automatic Transfer/Bypass Switches

Codes and Standards: NFPA 0,99, 101,110,NEC 517,700,701,702,IEEE 446, 241,NEMA ICS2-447
CSA C22.2 No. 178 listed through 600 VAC
Quality System:
ISO 9001 Registered
UL 1008 listed through 480 VAC
Controls tested in accordance with:
Equipment (Controls and Power Section)Seismic Test Qualified to:
IBC-2003
IEEE-693-2005
Enclosures meet the requirements of:
UL 508, UL 50, ICS 6, ANSI C33.76 and NEMA 250
IEC 947-6-1 listed through 480 VAC
This ruggedly built family of power contactor switches has been specifically designed for transfer switch duty with dependability, versatility and user friendliness of prime concern.
The CTS power panel components, consisting of power switching contacts, drive mechanism and terminal lugs, are mounted on a specially formed backplane. Logic devices including microprocessor control auxiliary time delays and special accessory equipment are assembled on the door for ease of maintenance and separation from the power section. They are connected with a numbered wiring harness equipped with a disconnect plug that allows isolation of the control panel for maintenance.

When the normal source fails or the voltage drops to a predetermined point (usually 80% of nominal), if required, a circuit is closed to start the engine generator set. When the emergency source reaches 90% of rated voltage and 95% of rated frequency, the drive solenoid is energized through the emergency coil control relay, causing the main contacts to disconnect the load from the normal source and connect it to the emergency source. After the drive solenoid has completed its electrical stroke and is seated, the emergency coil control relay opens to disconnect it. The transfer switch is now mechanically locked in the emergency position. When normal voltage is the normal source and connect it to the emergency source. After the drive solenoid has completed its electrical stroke and is seated, the emergency coil control relay opens to disconnect it. The transfer switch is now mechanically locked in the emergency position. When normal voltage is and is seated, the coil control relay opens to disconnect it. The transfer switch is now mechanically locked in the normal position.

All CTS switches employ the simple “over-center” principle to achieve a mechanically locked position in either normal or emergency and a high speed drive assures contact transfer in 100 ms or less. High contact pressure and positive mechanical lock allow for high withstand and closing ratings, far exceeding UL requirements.

Optional Equipment:

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5 months ago

Clean store and great employees

Hunter Flaugher

11 months ago

Hydraulic pump shop is unmatched. I made the mistake of going somewhere else before bringing my pump here. These guys were more than helpful and friendly. Went out of their way to help me find a solution for my problem even when it didn’t benefit them. This is how businesses should be run. I won’t go anywhere else.

Brian Hrudka

1 year ago

Too bad Poole Cat Field Service is better at invoicing than actually getting my machines moving.

A prompt and courteous technician arrived, and correctly diagnosed two problems with my mini Ex. Thank you. I corrected those problems, but machine still did not work.

He diagnosed a fuel problem as a clogged filter, rather than a bad fuel pump which I managed to diagnose. I also figured out, via help on the internet, that the fuel shut-off solenoid was bad.

Machine runs fine now. So my advice is to check the internet, before letting Poole charge you $870 for a two hour field visit. And you can find a perfectly fine aftermarket fuel pump for $20 rather than the $250 that Poole charges... and it arrives faster,

Jacey Price

2 years ago

Need to teach a tech how to drive a service truck. Around 2:48 on highway 40 east, the truck pictured (plate ending in 8236) flew across 3 lanes of traffic to meet the Cleveland rd exit. Almost hit a semi and caused me to swerve with my children in the car. Glad making the exit was more important than children’s lives.