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Automatic transfer switches
Bypass isolation contactor type automatic transfer switches
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Bypass isolation contactor type automatic transfer switches

Eaton’s Bypass Isolation Contactor Type Automatic Transfer Switches include dual automatic switching mechanisms that provide redundancy for critical applications. The ATS distributes electrical power to the load, while the automatic bypass serves as a backup. When the ATS is isolated for test, power is routed through the automatic bypass switch to ensure that critical loads remain powered without interruption.

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Continuous Current Rating
Up to 3000A
System Voltage Rating
Up to 600 Vac
System Frequency Rating
50/60 Hz

Core features

  • Provides uninterrupted emergency power to life safety and other critical loads while allowing maintenance of the automatic transfer switch to be performed
  • Rated for 100-3000A up to 600V and is available in open delayed, open in-phase, or closed transition
  • UL1008 and CSA 22.22 No. 178-1978 listed
  • Compartmentalized design provides enhanced worker safety
  • Automatic bypass switch and automatic transfer switch (ATS) provide unparalleled operational redundancy
  • Dual draw-out design allows the ATS or automatic bypass switch to be withdrawn
  • Automatic and non-automatic operation modes

View design guide (layouts, technical data and application information)

Download Guide specification (26.36.23)

Learn about power system design basics

Bypass isolation automatic transfer switch 3D interactive

The unique three-door, compartmentalized, draw-out construction is equipped with dual automatic switches that will simplify maintenance, enhance safety, and provide unparalleled reliability. Chrome or Firefox browser required. Screen resolutions with a 16:9 aspect ratio (example 1920x1080) are needed for full-screen interaction
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Built with experience

With more than 100 years of experience, Eaton can engineer reliable solutions to meet the specific demands of your application—completely designed and customized to your needs

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Eaton is a power management company with 2018 sales of $21.6 billion. We provide energy-efficient solutions that help our customers effectively manage electrical, hydraulic and mechanical power more efficiently, safely and sustainably. Eaton is dedicated to improving the quality of life and the environment through the use of power management technologies and services. Eaton has approximately 101,000 employees and sells products to customers in more than 175 countries.
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