| Feature | ATS Panel (Automatic Transfer Switch) | AMF Panel (Automatic Mains Failure) |
|---|---|---|
| Primary Function | Transfers load between two power sources (e.g., mains and generator) | Detects mains failure, starts generator, and transfers load |
| Generator Start Capability | May or may not include generator start function | Includes automatic generator start/stop on mains failure/recovery |
| Control Intelligence | Basic or external controller needed for generator management | Integrated controller with genset management and monitoring |
| Main Focus | Safe, automated transfer of load | Full automation of power failover and generator operation |
| Control Inputs/Outputs | Controls only source switching | Monitors mains, controls generator, manages switching |
| Power Source Types | Mains ↔ Generator or Mains ↔ Mains | Typically Mains ↔ Generator |
| Installation Site | Often used where generator is managed separately | Used where full automation and generator control are required |
| Complexity | Simpler, focused on switching | More complex, integrates multiple functions |
| Use Case Example 1 | Commercial building with standby generator managed by separate controller | Telecom base station needing autonomous generator operation |
| Use Case Example 2 | Industrial facility with manual or timed generator operation | Hospital requiring automatic failover and logging |
| Use Case Example 3 | Data center with dual utility sources | Residential estate backup power with auto-start diesel generator |
Summary:
- ATS panels primarily handle power source switching.
- AMF panels handle mains failure detection, generator control, and automatic switching in one unit.
If you're integrating a generator that needs to start automatically during outages, AMF panels are preferred. For projects where the generator start logic is handled separately or externally, an ATS panel may be sufficient.