Manual
Openmg
-
AH Breakers
All breakers, manual and electrical, are equipped with a
mechanical TRIP button located on the breaker escutcheon.
Manual opening is accomplished by displacing a mecha
nism latch that allows the toggle linkage, which holds
the breaker's moveable contacts in the closed position,
to collapse.
Manual
Stored Energy Closing
AKR-30, -50
and
AKRT-50
This circuit breaker has a closing spring which is charged by
a number of handle strokes (from one to four) depending on
the angle through which the handle is rotated. Upon comple
tion of the charging action, the springs are "propped" in the
fully charged position and are discharged only by removing
the "prop," releasing the spring to close the breaker. Closing
is initiated by depressing a mechanical close button on the
escutcheon.
6
This circuit breaker is closed by first rotating the handle
counterclockwise approximately 1 00 degrees; this resets the
mechanism and partially charges the closing spring. Return
ing the handle clockwise to the normal position completes
the spring charging and drives the toggle mechanism over
center, closing the contacts.
Manual
Stored Energy Closing
AKR-75
and
-100
This circuit breaker requires four handle strokes to charge
the springs. Unlike the smaller AKR frame sizes, the break
er's contacts close during the fourth handle stroke. Initiation
of closing by separate close button is not available.
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