DEWA-approved solar in UAE

ATS (Automatic Transfer Switch) in Solar Systems:

At Watts & Ergon, we specialize in the technical components that bridge the gap between simple solar generation and true energy resilience.

In the transition toward energy independence, the ability to maintain power during a grid outage is the ultimate benchmark of a high-performance solar system. At Watts & Ergon, , we specialize in the technical components that bridge the gap between simple solar generation and true energy resilience.

1. What is an Automatic Transfer Switch (ATS)?

An ATS is an intelligent electromechanical device that acts as the “traffic controller” of your electrical system. Its primary function is to sense the presence or absence of utility grid power and automatically switch the home or business load between the Utility Grid and the Backup Power Source.

Pro Tip: Most grid-tied inverters feature anti-islanding protection. Without an ATS to isolate the home, your solar system will shut down during a blackout to protect utility workers.

2. Types of Transfer Switches

Type Operation Mode Best Use Case
Open Transition Break-Before-Make Residential / Non-critical loads
Closed Transition Make-Before-Break Hospitals / Data Centers
Static Transfer (STS) Near-instant (<4ms) Sensitive IT Equipment

3. Technical Integration: The Critical Load Sub-Panel

In a professional installation, the ATS often directs power to a “Critical Loads Panel.” This ensures that essential devices (lights, fridge, internet) stay on, while energy-heavy appliances (AC, EV chargers) are excluded to preserve battery life.

4. Why Choose Watts & Ergon ?

Our ATS solutions are designed for the harsh Middle Eastern climate. We provide:

  • IP65 Rated Enclosures: Dust and moisture protection.
  • 4-Pole Configuration: For complete Neutral isolation.
  • High SCCR Ratings: Safety during high-surge events.

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