GEYA Mini ATS Automatic/Manual Transfer Switch 3-Pole 100A 220V — Dual Power, Over/Under Voltage Protection

This compact GEYA Mini ATS (Automatic Transfer Switch) combines automatic sensing and manual control to switch between two power sources — for example mains and backup generator or solar/inverter systems. Designed for 50/60Hz installations up to 100A, it monitors voltage ranges and switches when overvoltage or undervoltage is detected, helping to reduce disruption where continuous power is important.

How does the GEYA Mini ATS detect and respond to abnormal voltages?

The switch continually monitors both power supplies and defines clear trip and recovery points for over- and undervoltage. When voltages move outside the preset thresholds, the ATS will switch to the backup supply and return when the primary stabilizes.

• 110V system protection: undervoltage trips at 85V, recover at 95V; overvoltage trips at 145V, recover at 130V (±5V).
• 220V system protection: undervoltage trips at 175V, recover at 195V; overvoltage trips at 260V, recover at 240V (±5V).
• Automatic return to the normal supply once voltage is within recovery thresholds.

What installation scenarios is this Mini ATS suited for?

The GEYA Mini ATS is built for locations where power interruptions are costly or risky. It supports dual inputs that can be connected to mains, a generator, or photovoltaic inverters and is compact enough for many electrical panels.

• Use in small commercial sites, data closets, cold storage, or remote residential systems.
• Integrates with generator and inverter/solar setups for automatic backup switching.
• Rated for 3-pole, 100A service at 220V (supports 50/60Hz operation).

How do automatic and manual modes work and how will I know which supply is active?

The unit offers both automatic operation and a manual handle for direct selection. Each power input has an indicator so you can visually confirm which supply is active and whether the ATS is operating normally.

• Automatic mode: ATS senses and switches between supplies without user intervention.
• Manual mode: a red handle lets you force-select supply A or B as needed.
• Indicator lights show active supply status: clear visual feedback for maintenance or troubleshooting.

What safety and continuity features does the ATS provide?

The GEYA Mini ATS reduces downtime risk by switching quickly when the primary supply becomes unstable, though it isn’t designed as a zero-break seamless transfer device. It minimizes the impact of brownouts and surges by switching to an alternate supply within defined thresholds.

• Protects attached equipment from sustained over- or undervoltage conditions.
• Fast automatic switch-over to backup power when faults are detected.
• Clear status indicators and manual override for controlled operations and maintenance.

Who this is for: Installers and facility managers who need a compact, reliable 3-pole transfer switch for small commercial sites, critical residential circuits, or hybrid solar+generator systems. Choose the GEYA Mini ATS when you want straightforward automatic backup switching with manual control and clear status indication for systems up to 100A at 220V.