Chapter 3 Mechanical and Electrical Installation 
 
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3.2 Electrical Installation   
1. Prototyping guidance to the peripheral electrical components:   
Table 3-1 Guide to Prototyping of Peripheral Electrical Components of MD300 Inverter 
Inverter 
model  
Circuit
breaker 
(MCCB)
A
Recom
mended 
Contact
or (A) 
Recommen
ded 
Conducting 
Wire of 
Main Circuit 
at the Input 
Side (mm) 
Recommen
ded 
Conducting 
Wire of 
Main Circuit 
at the 
Output Side 
(mm)
Recomme
nded 
Conducti
ng Wire of 
Control
Circuit
(mm)
Grounding
cables 
mm²
MD300S0.4 16  10  2.5  2.5  1  2.5 
MD300S0.7 16  10  2.5  2.5  1  2.5 
MD300S1.5 20  16  4  2.5  1  2.5 
MD300S2.2 32  20  6  4  1  2.5 
MD300T0.7 10  10  2.5  2.5  1  2.5 
MD300T1.5 16  10  2.5  2.5  1  2.5 
MD300T2.2 16  10  2.5  2.5  1  2.5 
MD300T3.7 25  16  4  4  1  4 
MD300T5.5 32  25  4  4  1  4 
MD300T7.5 40  32  4  4  1  4 
MD300T11 63  40  4  4  1  4 
MD300T15 63  40  6  6  1  6 
MD300T18.5 100  63  6  6  1  6 
MD300T22 100  63  10  10  1  10 
MD300T30 125 100  16  10  1  10 
MD300T37 160 100  16  16  1  16 
MD300T45 200 125  25  25  1  16 
MD300T55 200 125  25  25  1  16 
MD300T75 250 160  35  35  1  16 
MD300T90 250 160  35  35  1  16 
 
2. Use instruction of peripheral electrical components:   
Table 3-2 Instruction for the Use of Peripheral Electrical Components of MD300 Inverter 
 
 
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