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LayerZero Blog - LayerZero Power Systems Blog

The Function and Value of Static Transfer Switches

• By Brian Love

Front view of an eSTS in service

An eSTS installed in a live power system.

In always-on facilities—data centers, trading floors, and advanced manufacturing—power continuity underpins safety and productivity.

Even brief disturbances can corrupt data, halt production, and trigger costly recovery work. The effects linger in revenue, reputation, and equipment life.

Static transfer switches (STS) reduce that risk by moving critical loads to a healthy source in milliseconds. Choosing a proven design—and a partner that understands your environment—makes a measurable difference in uptime.

5 Things to Know About the Series 70 eSTS (3-Pole & 4-Pole)

Series 70 eSTS cabinet, 400 A at 480 V

Series 70 eSTS shown with doors closed.

For more than two decades, the focus has been uptime, operator safety, and clear diagnostics. As infrastructure scales, that combination matters more than ever.

The Series 70 eSTS comes in 3-pole and 4-pole configurations to match distribution schemes and site standards. Both deliver fast, dependable transfers; 4-pole adds switched neutral for systems that require a consistent reference during a source change.

Food Drive 2025 Raises 1,641 Pounds for Food2Share

Team presenting Food2Share donations

Associates presenting donations to Food2Share in Aurora, Ohio.

Employees across three buildings rallied in a friendly competition to support Food2Share programs serving local families.

The three-week challenge culminated in a donation of 1,641 pounds of food and toiletries supporting weekend meal kits and senior outreach.

Donation to Food2Share Supports Local Families

Presenting a donation check to Food2Share

Donation presentation to Food2Share.

This contribution supports programs in Aurora and Mantua that provide nutritious meals and essential items for children and seniors.

Through “Fill a Bag, Feed a Family,” funds help supply food bags, educational resources, and community events.

Now Shipping: INSIGHT IR® Thermal Monitoring

INSIGHT IR module for continuous thermal monitoring

INSIGHT IR® contactless thermal monitoring module.

INSIGHT IR® continuously monitors bolted connections using IR cameras, enabling remote, preventative maintenance across eSTS, PDUs, and power panels.

The result: clearer diagnostics, safer inspections, and higher uptime.

Manufacturing Capacity Expands in Streetsboro

Exterior of the Streetsboro assembly plant

The assembly plant in Streetsboro, Ohio.

A new facility increases production capacity and supports a growing workforce while improving operational flow.

The site complements the headquarters expansion and underscores ongoing investment in reliability and service.

Celebrating the Total Eclipse

Employees viewing the solar eclipse with glasses

Clear skies over HQ during totality.

With perfect weather, the team gathered to view the eclipse together. Safety glasses were provided for employees and their families to enjoy the once-in-a-lifetime event.

First Look: HQ Expansion Walkthrough

A first look inside the expansion at Danner Drive.

Tour the new space before build-out. The expansion will house future production lines and test areas—designed for throughput, safety, and maintainability.

Expansion Project Update

Construction progress on the new facility

Construction in progress.

Permits secured, groundbreaking complete, and the new manufacturing facility under construction. The project nearly doubles capacity and creates new local jobs.

  • Major permits secured
  • Groundbreaking held
  • New facility under construction
  • Target completion: Q2 2024

Follow updates at www.layerzero.com/expansion.

VDAT Plotting: Clear Power-Quality Insight

VDAT plot on a workstation monitor

Example VDAT plot view.

VDAT (Voltage Disruption Analysis Tool) transforms waveform data into clear, ITIC-based plots for faster decisions about power quality and root causes.

  • Instant visualization of disturbances
  • Intuitive interface for quick interpretation
  • Root-cause context beyond raw waveforms
  • Downloadable plots for reports

Seismic-Rated Electrical Equipment: Why It Matters

Shake-table test of a transfer switch

Shake-table testing of a transfer switch.

In seismic zones, standard gear may not withstand strong ground motion. Seismic-rated designs for transfer switches, PDUs, and panels help reduce downtime and improve safety during and after an event.

  • Engineered to meet stringent seismic standards
  • Minimizes outages and damage
  • Supports code compliance
  • Protects long-term equipment life

Why We Test Every Circuit Breaker

Two circuit breakers after QC testing

Breakers after quality checks.

Thorough inspections, functional tests, and documentation help prevent unplanned outages and improve safety. Detailed records are maintained for traceability and continuous improvement.

Quality in Manufacturing

Assembly plant at 350 Harris Drive

Assembly facility at 350 Harris Drive.

From incoming inspections to power-on tests, quality controls are embedded throughout fabrication, assembly, and verification—so equipment performs as intended in service.

  • Rigorous test protocols at multiple stages
  • Dedicated quality teams and documentation

INSIGHT IR®: Continuous Thermal Monitoring

Thermal camera module for electrical gear

Thermal monitoring module.

Contactless thermal scans support safer inspections and predictive maintenance by highlighting abnormal temperature trends at bolted connections—without opening energized equipment.

  • Enhanced safety and visibility
  • Faster inspections and reporting
  • Trend data for proactive service

Celebrating 20 Years

20-year anniversary logo

Two decades of progress.

Founded in 2001, the team has delivered innovations across transfer switches, PDUs, panels, and monitoring—focused on uptime, safety, and clarity.

Learn more in our history.