Issue 10/06  2  Installation 
MICROMASTER 440      Operating Instructions   
6SE6400-5AW00-0BP0 
41 
Adaptation of fan voltage (only for frame size FX and GX) 
A transformer is installed to adapt the existing line voltage to the fan voltage. 
It may be necessary to reconnect the transformer terminals on the primary side to 
coincide with the existing line power. 
Connect according input voltage
0V   1L380V
1L400V  1L440V
1L480V        -
 
Fig. 2-12  Adaptation of fan voltage  
 
CAUTION 
If the terminals are not reconnected to the actually present line voltage, the fan 
fuses can blow. 
 
Replacement for fan fuses  
Frame size  Fuses (2 each)  Recommended fuses 
FX (90 kW CT)  1 A / 600 V / slow-acting  Cooper-Bussmann FNQ-R-1, 600 V  
or comparable fuse 
FX (110 kW CT)  2,5 A / 600 V / slow-acting  Ferraz Gould Shawmut ATDR2-1/2, 600 V  
or comparable fuse 
GX (132-200 kW CT)  4 A / 600 V / slow-acting  Ferraz Gould Shawmut ATDR4, 600 V  
or comparable fuse