The “brains” behind the “brawn” of our generators, Generac Industrial Power offers several lines of power transfer switches. All of our transfer switches are available in contactor type, which are double-throw and interlocked with an over center design to ensure safe, positive transfer between power sources.

Our GTS/HTS lines are ideal for light industrial applications with amps up to 2,600. Our HTS line works with our PowerManager® controllers, which can be set remotely via GenLink® communications software providing you with a single source for your genset needs. 

The PSTS models provide up to 5,000 amps and feature open, delayed, and closed transitions on three cycle switches, which are essential in mission critical and other industrial applications. All service entrance switches are 100 percent rated, and the top, bottom, and side cable entry eases installation. Our PSTS switches can also be integrated with our ATC-900 or ATC-300+ controllers or with virtually any other controller. 


Generac offers a full line of Industrial Transfer Switches to meet varying needs from light industrial applications all the way to the most demanding critical installations. All Generac switches offer contacts that are silver composite, which resists pitting or burning, ultimately leading to longer life and the reliability you expect. These switches are ISO 9000 certified, meet all relevant NEC codes, and are rated for full load transfers in critical operating, emergency, legally required, and optional power systems. Generac’s flexible platforms offer a variety of switching technologies for customized solutions to meet any project needs.
GTS Transfer Switches

GTS Transfer Switches

  • 100 - 2,600 Amps
  • Open with In-phase, Delayed Transition
  • Two Wire-Start – Any Controller
  • Contactor Technology
All About GTS Transfer Switches
HTS Transfer Switches

HTS Transfer Switches

  • 100 - 2,600 Amps
  • Open with In-phase, Delayed Transition
  • Power Manager® H-100 or G-100 Controller
  • Service and Non-Service Entrance Rated
All About HTS Transfer Switches
PSTS Transfer Switches

PSTS Transfer Switches

  • 100 - 5000 Amps
  • Open with In-phase, Delayed, Bypass Isolation, or Closed Transition
  • Two Wire-Start – Any Controller
  • Service and Non-Service Entrance Rated
All About PSTS Transfer Switches


Generac Power Systems offers a full line of industrial controllers (as well as switches) to fit your every need. From our standard GTS/HTS series to our more advanced ATC-300+ controller and all the way to our top of the line controller, the ATC-900.
ATC-900 <strong>Controller</strong>

ATC-900 Controller

  • Brings intelligence and enhanced capabilities to PSTS products
  • 4.3-inch LED color monitor
  • Records up to 450 real time-stamped events
  • Customizable inputs and outputs
Download Spec Sheet
ATC-300+ <strong>Controller</strong>

ATC-300+ Controller

  • 2-line, 32-character alphanumeric LCD display
  • Event logging
  • Programmable plant exerciser
  • 3 phase sensing
Download Spec Sheet
Remote <strong>Annunciator</strong>

Remote Annunciator

  • Remotely monitor and control multiple transfer switches
  • Connects to ATC-900 or ATC-300+ controller
  • Color touchscreen display
  • Password protection for all control functions
Download Spec Sheet

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