Power distribution units for IT equipment

Three-phase auto transfer switch (ATS)

Redundant power for high-density servers without redundant power supplies is achievable with 3-phase auto transfer switch (ATS) rack power distribution units (PDU). These units ensure continuous power availability and reliability.

Streamline your installations and reduce data center costs with each server rack

Delivery of up to 8.6, 12.5 or 17.3kW of redundant 208V AC power to servers without requiring redundant power supplies
Dual inputs for connecting separate A (primary) and B (secondary) 3-phase power sources
Patented ATS technology (U.S. Patent 9,467,006) provides rapid coordination of unsynchronized phases without dropping loads
Unique hybrid of solid-state and electromechanical relay switching provides the best features of both
Ultra-fast transfer in less than 6 milliseconds
Multifunction digital display for local monitoring
Built-in network interface for remote monitoring
Only 1U of rack space required for ATS
Field-proven performance, reliability and efficiency for data center applications

Learn more about Eaton's three-phase ATS

Eaton 3-phase auto transfer switch (ATS)

Traditional dual PDU solution vs. Eaton ATS solution

Provide redundant power to a rack that has clustered 1U servers.

Traditional dual PDU solution	Eaton ATS solution	The Eaton advantage
Two 3-phase rack PDUs feed single-phase 208V loads	3-phase rack ATS feeds single-phase 208V loads	Simplified network management with a single ATS per rack to monitor
Two power supplies per server	One power supply per server; the Eaton ATS provides redundant power to each server power supply, so a second power supply is not required	Fewer power supplies to purchase 2–4% gain in efficiency, depending on the power supply used* Reduced electricity costs Reduced cooling costs
Two power cords per server	One power cord per server	Fewer power cords to purchase Simplified cable management Improved airflow, allowing servers to run cooler and last longer Improved service access

The Eaton ATS can also provide redundant power to a single-cord top-of-rack switch, eliminating the need to purchase a separate ATS dedicated to the switch.

* The estimated efficiency gain assumes 80 PLUS® certified power supplies, with dual power supplies loaded at 25% compared to single power supplies loaded at 50%.

What you get with Eaton's 3-Phase Rack ATS

Lower hardware costs

Eliminates cost of a second power supply and power cord per server

Simplified management

Simplifies network management and reduces cable clutter for better organization, airflow and access

Lower operating costs

Enhances server power supply efficiency, reduces cooling costs and ensures high ATS efficiency.

Efficient use of rack space

Saves rack space and may reduce rack weight and floor loading

Contact an Eaton expert

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.

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Three-phase auto transfer switch (ATS)

Streamline your installations and reduce data center costs with each server rack

Traditional dual PDU solution vs. Eaton ATS solution

What you get with Eaton's 3-Phase Rack ATS

Looking for more information?

Favorites

Manage favorites

Three-phase auto transfer switch (ATS)

Streamline your installations and reduce data center costs with each server rack

Traditional dual PDU solution vs. Eaton ATS solution

What you get with Eaton's 3-Phase Rack ATS

Looking for more information?

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