EAAM057608EN
GC250 Technical Manual 19
4
4.1
The device has to be mounted permanently on a panel. The rear panel of the device must be
accessible only by keys or tools and only by authorized personnel for maintenance operations.
It must be impossible to remove the controller without tools. The electric control panel has to
guarantee an adequate protection against bad weather.
The mounting dimensions for the installation are 118x92mm. The mounting is carried out by
four hooks with screws: once the device is positioned, insert the hooks in the holes on the
sides and tighten the screws. Pay attention not to tighten excessively the screws in order not
to damage the hook on the device.
WARNING !: Operating temperature within the panel may vary between -30 ° C and + 70 ° C;
The outdoor operating temperature (ambient) may vary between -30 ° C and + 60 ° C.
4.2
Due to the high voltages connected to the measurement circuits of the controller, all
conductive parts of the electrical panel should be connected to the protective earthing
through permanent connections.
The installation of an overcurrent protection device is required for each phase of the mains
and generator voltage inputs. You can use 1A fuses.
The section of the protective earthing conductor should be at least equal to the section of
cables used to wire mains or generator voltage to the control panel. In addition, it must comply
with the limit value of the overcurrent protection used.
For CAT.III applications, the maximum phase-to-neutral voltage allowed is 300Vac, while the
phase-to-phase voltage is 520Vac. The maximum voltage related to the protective earthing is
300 Vac.
The device can operate in CAT.III only if the supply minus terminal of the device and the
neutral terminal of the generator are connected to the protective earth.
