WL Circuit Breaker selection and application guide
Low Voltage Power Circuit Breaker
UL 1066 Listed catalog number 
Breaker catalog number
 
  Maximum continuous   Frame size  Frame size
  current rating (A)  II  III
 
 
200   X      A   
    225    X      B 
 250    X      C   
 300    X      D   
 315    X      E   
 350    X      F   
 400    X      G   
 450    X      H   
    500    X      J 
    600    X      K 
 630    X      L   
 700    X      M  
 800    X  X    N  
  1000     X  X    P    
 1200     X  X    Q  
 1250     X  X    R  
 1600     X  X    T   
 2000     X  X    U   
 2500     X  X    V  
 3000     X  X    W  
 3200     X  X    Y  
 4000       X    Z  
 5000       X    1     
 
Rating plug
 1   2   3   4   5   6   7   8   9  10   11   12   13   14   15  
                      
Electronic trip units
 
(ETU)
  Trip unit  Protective function  LCD display   Ground fault module
  type  L  S      I  alpha num.  Alarm  Trip 
 ETU745  X  (X)  (X)          C  
 ETU745  X  (X)  (X)  X        D  
 ETU745  X  (X)  (X)    X      E  
 ETU745  X  (X)  (X)  X  X      F  
 ETU745  X  (X)  (X)    X  X    G  
 ETU745  X  X    X  X  X    H   
 ETU748  X  X            J   
 ETU748  X  X    X        K   
 ETU748  X  X      X      L   
 ETU748  X  X    X  X      N  
 ETU748  X  X      X  X    P   
 ETU748  X  X    X  X  X    Q  
 ETU776  X  (X)  (X)          V   
 ETU776  X  (X)  (X)    X      W  
 ETU776 X (X) (X)   X  X    Y  
     
( ) Function can be disabled by user.
41