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Page 11 
 
The equipment operates to its maximum whenever it is supplied from the installation itself before the breaking device 
or from an independent auxiliary power supply. However if the power supply from the installation is below the 
breaking device the system continues to be properly protected even though with limitations in terms of its 
disconnection performance through lack of power supply.  
 
 
Others types of power supply voltages for the equipment, independent of the installation itself: 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Power supply from 
24 to 120 V
dc