The LayerZero Power Systems Series 70: eSTS is a Static Transfer Switch, designed to switch between multiple power sources very fast - less than a quarter of an electrical cycle. The eSTS features a solid-state transfer switch that automatically or manually provides static transfers between two AC sources. The eSTS is a MISO Configuration (Multiple Inputs, Single Output), and is ready to accept either 2 or 3 power sources. If the primary source goes out of specification, eSTS transfers to the secondary (backup) source.

The Series 70: eSTS Static Transfer Switch contains a control section and circuit breaker section.

The control section contains the System Control Data Boards, SCR Gate Drives, a Redundant Power Supply System, an IO System, and VPN Router. The circuit breaker section contains SCRs, Snubber Circuits, Heat Sinks, and Circuit Breakers.

eSTS Models with Withstand Ratings
	120/208 V	480 V; 480/277 V; 415/240 V; 400/230 V; 220/380 V	600 V; 600/347 V; 575 V
150 A	150kA; 100kA; 65kA	150kA; 100kA; 65kA; 35kA	100kA; 65kA; 35kA; 25kA
250 A

 

Mechanical Characteristics
	150 A - 250 A
Heat Dissipation	4,750 BTU / Hr
Weight	1,350 lbs
Dimensions	36"W x 36"D x 80"H