Eaton Static Transfer Switch (STS)

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Eaton Static Transfer Switch (STS)

The Eaton Type II STS transfers electrical loads from one source to another while eliminating the chance of a loss of power to critical equipment by properly coordinating with the electrical distribution system. During a fault condition, the Type II STS continues to conduct current, allowing downstream circuit breakers to work selectively. By incorporating the Eaton Type II STS into your power infrastructure many UPS/building configurations are possible.


  • Transfer between two AC power sources in a fraction of a single electrical cycle
  • Input options: 208VAC and 480VAC
  • Current Options: 200A, 400A, 600A, 800A and 1,000A Models
  • RS-485 interface with Modbus protocol
  • Power Metering including power factor, kVA Demand and harmonic analyzer
  • Fuse-free, rugged, high-reliability SCR devices
  • Logs events and alarms
  • Conforms to NEMA standards, UL 1008 Listed
  • Meets IEEE c62.41 and FIPS Pub 94

Eaton Static Transfer Switch Brochure

Additional information


Midwest/Great Plains, National



Product Type

AC Power Distribution and Surge Suppression


Data Center

About HM Cragg

HM Cragg has been providing quality backup power solutions since 1968 as a manufacturer’s representative and distributor of uninterruptible power systems, generators, power electronics, backup battery applications, and other complementary products. Headquartered in Edina, MN, we maintain a national presence with, four distribution centers (Minnesota, Virginia, Texas and Nevada), and sales personnel located across the country. As an employee-owned company, our “owners” represent the values of the company – honesty, trust, integrity, ethics, and knowledge. This translates into a customer experience that’s a “WOW" or we make it right!