Static Transfer Switch On The Secondary Side Of Two Transformers With Distribution 
The Series 70 ePODs Type S design provides solid-state switching between two independent power sources each of which has a transformer feeding one side of the static transfer switch with downstream power distribution capability. Up to twelve sub-feed circuit breakers are available.
LayerZero Type-S design automatically or manually transfers between two AC sources in less than a quarter cycle, and safely conducts this power downstream. The Series 70 ePODs performs open-transition transfers in such a manner that the connected load disruption is minimized without cross-connecting the power sources. One power source is specified as the preferred source, and if the preferred source fails, the unit will automatically connect to the alternative source until the preferred source is available again.
The Series 70 ePODs Type-S design features Triple Modular redundant control logic, fail-safe mechanics, InSight portholes, a touch Screen interface, waveform capture, "black box" forensic diagnostics, voice guided bypass procedure, front-only access, selective trip coordination, and the SafePanel. The Series 70 ePODs TypeS line has been developed with an emphasis on reliability, safety, connectivity, and information centricity.
All components of the machine are safely replaceable without the need to de-energize the load.
- Documentation
- Fundamentals
- Product Options
- Reliability
- Safety
- Connectivity
- Information Centricity
Technical Documentation
LayerZero Series 70: ePODs Type S ![]()
White Papers
Opinion Papers
- Analysis and Opinion on the Operation of Switch Mode Power Supplies under Switched Voltage Phase Conditions, James M. Galm, Ph.D., P.E.
- A Case For The Omission of Shunt Trips in STS, James M. Galm, Ph.D., P.E.
- On the Inability to Truly Detect Open SCRs on the Inactive Side of Static Transfer Switches, LayerZero Power Systems.
Product Options
All of our products are custom built to exact specifications, fully configurable through our eBOSS portal.
The Series 70 ePODS: Type S offers the following configurations:
Voltage |
Transformer Size |
eSTS Current |
480V, 3-Phase, 3-Wire + Ground |
75 |
250 |
480V, 3-Phase, 3-Wire + Ground |
90 |
250 |
480V, 3-Phase, 3-Wire + Ground |
144 |
400 |
480V, 3-Phase, 3-Wire + Ground |
216 |
600 |
|
|
|
600V, 3-Phase, 3-Wire + Ground |
75 |
250 |
600V, 3-Phase, 3-Wire + Ground |
90 |
250 |
600V, 3-Phase, 3-Wire + Ground |
144 |
400 |
600V, 3-Phase, 3-Wire + Ground |
216 |
600 |
600V, 3-Phase, 3-Wire + Ground |
288 |
800 |
Number of CBs: 1, 2
Redundancy:SMR, TMR
Color: Black, White
