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Use and Maintenance Manual ATS LOGICA CONTROL PANEL with ATS115
The ATS LOGICA Control Panel is a device that allows to supply alternatively a system that uses
two different and independent sources of energy, which usually are: Source A (Mains) and/or Source
B (Genset).
According to the nominal current, besides the panel circuits, the switch takes place by means of:
1) 2 four-pole contactors which are electrically and mechanically interlocked (45 - 125A);
2) 1 motorized four-pole changeover switch (160
– 4000A).
Mechanical interlock
Auxiliary contacts
45÷125A
45÷125A
The contactors are interlocked by means of a proper accessory. In order to guarantee more safety
to the system, besides the mechanical interlock, there is an electrical interlock carried out by auxiliary
contacts installed on the front of each contactor.
With this configuration, only one of the two contactors
can be commanded; the second one stays deactivated.
In this way, the load is always supplied by only one source.
When the contactor is closed, the mechanical part in the
figure stays blocked.
