SECTION
4-
Drawout Breaker Interchangeability
I n general, drawout breakers of the same type and rating
are i nterchangeable in their equipment compartments ;
drawout breakers of different frame sizes are not inter
changeable. To prevent inserting the wrong type breaker
i nto a drawout compartment, suitable "rejection hardware"
is affixed to each breaker and its compartment. Figure
7
shows a typical rejection bracket which aligns with a rejec
tion pin in the drawout rail (Fig. 8) . When the wrong type
breaker is inserted into a compartment the bracket and pin
prevent the breaker from seating itself into the drawout
rails.
There is one exception to the above . Breakers of the
same frame size having different short circuit ratings may
be interchanged in one direction only :
a. An AKR-30H can be inserted into an AKR-30 compart
ment.
b. An AK R-50H can be inserted into an AKR-50 compart
ment.
c. An AKR-50H-1 can be inserted into an AKR-50 and
AKR-50H compartment.
d. An AKRT-50H can be inserted i nto an AKRT-50 com
partment.
The rejection hardware prevents the converse of a.
thru d. above.
A detailed description of the rejection pin and bracket
combinations used is given in Installation manual , G E l
861 50.
1 0 8
TYPICAL REJECTION BRACKET
FIG. 7 - DRAWOUT BREAKER
REJECTION SYSTEM
FRONT OF
COMPARTMENT
R I GH T
SIDE
P I N
FIG. 8 INSERTING TH E B R EAKER
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