SECTION 7-Breaker Maintenance (Cont.)
7.5 P RIMARY DISCONNECTS
Primary disconnects are found only on drawout break
ers. They provide the flexible connection between the
breaker's line and load terminals and the equipment's line
and load terminals.
FIG.
22
- P RI MARY DISCONNECT
ASSEMBLY
FIG.
24
-
PARTIAL PRIMARY DISCONNECT
ASM
The
BOO
ampere breakers use four primary disconnect
fingers per phase. The 1 600 and 2000 ampere breakers
use eight fingers per phase. Fig. 22 shows a line and load
end disconnect assembly. The line end disconnects on
fusible breakers have the spring pointing downwards,
otherwise they are identical.
FIG. 23 - PARTIAL P R I MARY DISCONNECT
ASM
FIG.
25-
PARTIAL PRIMARY DISCONNECT
ASM
21
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