Jul 21, 2026
When mains power fails, every second counts — especially for hospitals, data centers and businesses. An Automatic Transfer Switch (ATS) with AMF makes backup power seamless. Here's how it works.
What is an ATS / AMF?
An ATS (Automatic Transfer Switch) with AMF (Auto Mains Failure) monitors the mains supply. On an outage it automatically starts the generator and transfers the load — then switches back and stops the generator when mains returns.
How it works, step by step
- Mains fails
- The AMF panel detects it within seconds
- The generator starts automatically
- The ATS transfers the load to the generator
- On mains return, it transfers back and shuts the generator down
Why it matters
- Speed — power restores in seconds, no manual switching
- Safety — prevents back-feeding the grid
- Reliability — critical for hospitals, data centers and unmanned sites
Manual vs automatic
A manual changeover is cheaper but needs someone on-site. For critical or unattended loads, an ATS is essential.
Vector supplies generators with ATS/AMF and synchronising panels across the UAE. Read about backup power planning or contact us.