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dwg# i-8007 

Page  1 

MANUAL  

   

Model:   EQ 12/24-50 

Solar Converters Inc. - Rev. B 

 

                                                                               

 

IMPORTANT NOTE:  Unit is bi -directional in its operation.  Please take a moment to ensure the input and output voltage 
required and the direction of the power flow.  Misconnection or backwards connection of the unit may provide either half 
the voltage or twice the voltage to the load, with potential damage to the load and/or unit.  
 

Warning:

  This unit may operate from multiple 

hazardous

 energy sources.  Ensure that all power sources are inactive 

before making any connections to this unit.  Ensure proper procedures and the appropriate electrical codes are followed.  
To be serviced only by qualified personnel. 
 

Warning:

  Ensure the battery is disconnected and/or safe operating procedures are followed when making battery 

connections.  Extreme care must be taken to ensure the battery is not shorted.  Make sure all strands are inside their 
respective terminals.  Qualified personnel only to connect and service this unit. 
  

START HERE  
 

Section 1

 

 
 

Please determine if a step down, step up or battery equalization function is required.    

 
-  If the load voltage is 1/2 the input voltage  = step down.  Go to Section 2  
 
-  If the load voltage is twice the input voltage  = step up.  Go to Section 3 
 
-  If used to equalize battery voltage to account for battery voltage mismatch, used as both step up and step down.    
Go to Section 4 

 
NOTE: FUSING REQUIRED ON BOTH HIGH AND LOW WIRES 

 

Section 2:   Step Down Transformer 
 
 

Input Voltage:  10.5  - 32 DC volts  

 

 

Current:  0 - 25 amps nominal 

                     

           

 

Output Voltage: 5.5  - 16 DC volts   = 1/2 input voltage 

             

 Current: 0 - 50 amps continuous  

 
2.1  Common Connection  
 
Using wire of sufficient amperage for the load connection (#12 AWG or better) connect the negative of the battery and the 
negative connection of the load to the COM Terminal. 
 
2.2  Load Power Connection 
 
Using a wire of sufficient amperage for the load power (#12 AWG or better) connect the positive of the load to the LOW 
Terminal.  
 
2.3  Input Power Connection 
 
Using wire of sufficient amperage for the input connection (#12 AWG or better) connect the positive of the battery to the 
High Terminal.  

 
 
 

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