Goodrive300-LIFT series inverter    Peripheral optional parts 
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 Due to the inherent operating principle and construction of circuit breakers, 
independent of the manufacturer, hot ionized gases may escape from the 
breaker enclosure in case of a short-circuit. To ensure safe use, special attention 
must be paid to the installation and placement of the breakers. Follow the 
manufacturer's instructions. 
It is necessary to install the electromagnetic contactor in the input side to control the switching on and 
off safety of the main circuit. It can switch off the input power supply when a system fault occurs. 
D.5.1 AC 3PH 380V(-15%)–440V(+10%)   
Contactor rated working 
current (A) 
Note: The specifications can be  adjusted  according to the actual  working, but they cannot be  less 
than the designated values. 
D.6 Reactors 
High  current  in  the  input  power  circuit  may  cause  damage  to  the  rectifying  components.  It  is 
appropriate to use AC reactor in the input side for the avoidance of high-voltage input of the power 
supply and improvement of the power factors. 
If the distance between the inverter and the motor is longer than 50m, frequent overcurrent protection 
may occur to the  inverter because of  high  leakage current caused by parasitic capacitance effects 
from  the  long  cables  to  the  ground.  In  order  to  avoid  the  damage  of  the  motor  insulation,  it  is 
necessary to add reactor compensation.