AMF Panel Wiring Diagram PDF
Technically speaking, the true nature of an AMF (Automatic Mains Failure) panel is a contactor-based changeover driven by two voltage monitoring relays.
An ATS panel shares the same final purpose: to supply continuous electric power to your building. However, its original concept relied on a physical, motor-driven changeover switch rather than contactors. Furthermore, in recent years, drawing a hard line between AMF and ATS controllers has become obsolete. Defining an ATS controller merely as a module with a single output to start a generator no longer makes sense in modern engineering. As a pioneer in digital AMF controllers since 1984, Bernini Design provides this comprehensive collection of AMF Panel Wiring Diagrams in PDF format to support professional installations and retrofits.
What is Inside the PDF Collection?
-Single-phase and three-phase AMF wiring layouts.
-Dual voltage relay monitoring schematics.
-Contactor-based changeover interlock wiring.
-Generator start/stop auxiliary circuit integration.
-Key Technical Differences (Contactor vs. Motorized Switch):
- A brief note expanding on why contactors require precise electrical/mechanical interlocks.
Understanding the main misconceptions about ATS and AMF.
The AMF panel must transfer the load to the GENERATOR or MAINS smoothly and with short downtime. The AMF panel wiring diagram illustrates the panel's internal connections. The controller monitors the parameters of the MAINS and automatically starts the engine via relays. Once the GENERATOR provides the correct frequency and voltage, the AMF panel connects the LOAD to the GENERATOR. The AMF panel features circuit breakers to protect the auxiliary interbal circuit wires from direct short circuits. The CONTACTORS feature a mechanical and electrical interlock. In other words. only one contactor can be activated.
Find Out More: click the image to buy the AMF Panel Diagram Tutorial (4,90 €)
The AMF panel inhibits the simultaneous activation of the contactors. To protect the systems from all kinds of overloading, you must set up the AMF controller. The AMF panel also interfaces with J1939-compliant engine.. It interfaces with a standard (or Non-Electronic) engine through normal DC relays. Flywell diodes are not required beacuse the interface board has internal suppression devices. When making the engine interface hardware, install suitable pilot relays on the engine's structure. Additional relays can be used for user-defined particular functions.
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