Automatic Transfer Switches (ATS)

ATS Lines

The Cat® ATS lines offer a broad range of branded UL-style transfer switch products that are positioned to support virtually any type of emergency power application, from simple single ATS installations to highly complex multi-ATS/generator switchgear systems. The ATC series controllers available in sizes ranging from 40 through 5000A and the MX and TruONE controllers available in sizes ranging from 40 through 4000A, there is a Cat switch to suit every project's needs. Caterpillar’s U.S.-based switchgear plant provides sales and service support for Cat branded ATS's world-wide.

Operating Modes:

  • Open Transition
  • Closed Transition
  • Delayed Transition
  • Bypass Isolation
Model Amp Range Controllers Media
ATC – Contactor-type ATS 40A – 3000A ATC 300+ or 900 LEXE0922
ATC – Power Breaker & Power Case-type ATS 200A – 5000A ATC 900 LEHE0830
ATC – Molded Case-type ATS 30A – 1000A ATC 300+ or 900 LEHE0829
ATC – Service Entrance Rated MCCB & Power Breaker-type ATS 30A – 5000A ATC 300+ or 900 LEHE0832
ATC – Contactor-type ATS with Bypass Isolation 100A – 1200A ATC 300+ or 900 LEHE0831
ATC – Contactor-type ATS with Bypass Isolation 3000A ATC 300+ or 900 LEHE20146
ATC – Power Breaker-type ATS with Bypass Isolation 200A – 5000A ATC 900 LEHE2086

Operating Modes:

  • Open Transition
  • Closed Transition
  • Delayed Transition
  • Bypass Isolation
Model Amp Range Controllers Media
CX – Contactor-type ATS for light commercial or residential 30A – 1200A TruOne L2 Type LEHE2080
CG – Contactor-type, Open Transition ATS for general purpose applications 30A – 3000A TruOne L3 Type LEHE2083
CGD – Contactor-type, Delayed Transition ATS for general purpose applications 30A – 3000A TruOne L3 Type  
CS – Contactor-type, Open Transition ATS (Spec Grade) 30A – 3000A TruOne L4 Type  
CSD – Contactor-type, Delayed Transition ATS (Spec Grade) 30A – 3000A TruOne L4 Type  
CSCT – Contactor-type, Closed Transition ATS (Spec Grade) 400A – 3000A TruOne L4 Type  
CBS – Contactor-type, Open Transition ATS w/ Bypass Isolation (Spec Grade) 30A – 3000A TruOne L4 Type  
CBSD – Contactor-type, Delayed Transition ATS w/ Bypass Isolation (Spec Grade) 30A – 3000A TruOne L4 Type  
CBSCT – Contactor-type, Closed Transition ATS w/
Bypass Isolation (Spec Grade)
1000A – 3000A TruOne L4 Type  

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