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Automatic Transfer Switches

 
ABB's Automatic transfer switches (ATS) cover a variety of applications such as: Data Centers and Healthcare.  Automatic transfer switches (ATS) shift the load between two power sources (Primary and secondary load sources). Our ATS automatically sense and trigger when one of the sources has lost or gained power.

TruONE ATS

TruONE™ ATS - A critical breakthrough for critical power.

TruONE ATS (automatic transfer switch) is the ATS for all applications while providing superior critical power security. TruONE incorporates switch and controller in one…

Zenith Medium Voltage Automatic Transfer Switches

Provides highly reliable and flexible source switching for essential healthcare equipment and business critical applications, including make-before break switching. 40-4000A…

Zenith T-series Automatic Transfer Switches

Rugged construction and flexible configurations for large commercial and industrial applications.
Built for mission-critical and emergency power systems. Zenith ATS' is available in 30-4000A, standard, delayed, and closed transition.
The ZBTS T-series is built for mission-critical and emergency power systems. It is available in 30-3000A, standard, delayed, and closed transition.

ZTE Series - Legacy Zenith ATS

Specifically designed for large healthcare and mission-critical applications,with built-in metering,communications and advanced diagnostics. 40-4000A and 120-600V.
Specifically designed for large healthcare and mission-critical applications,with built-in metering,communications and advanced diagnostics. 40-4000A and 120-600V.

ZTG Series - Legacy Zenith ATS

Rugged construction and flexible configurations for large commercial and industrial applications. Available from 40-3000A and 120-600V.
Rugged construction and flexible configurations for large commercial and industrial applications. Available from 40-3000A and 120-600V.

ZTS Series - Legacy Zenith ATS

Provides highly reliable and flexible source switching for essential healthcare equipment and business critical applications, including make-before break switching. 40-4000A…
Provides highly reliable and flexible source switching for essential healthcare equipment and business critical applications, including make-before break switching. 40-4000A…

Previous Generation ATS

Built for light commercial critical/non-life safety applications requiring the dependability and ease of operation found in a power contactor switch.
Easy and dependable for residential, commercial & light industrial standby power applications. Available from 30-1200A and 200-480V.
(Standard, Delayed or Closed Transition)
Provides reliable, easy-to-operate source switching for small frame commercial and light industrial standby power applications. 40-400A and 120-480V.