S&C Instruction Sheet 716-502 27
Operation
Manual Operation
To trip the interrupters, push the manual TRIP lever
counterclockwise as indicated by the TRIP lever label. See
Figure 16 on page 20. The opening latch in the stored-energy
mechanism will release, discharging the opening spring. This
action trips the interrupters and forces the opening and closing
pistons in the mechanism downward, as denoted by movement
of the indicator to the DISCHARGED indicator window. (See
Figure 26.) The switch-position indicator on the high-speed
base will move to the Open position. (See Figure 25 on page 26.)
If the position-indicating lamp option has been speci ed—and
operator control voltage is available—the green lamp will light.
If operator control voltage is available, the motor-driven
cam in the stored-energy mechanism will immediately start
rising, charging both the opening and closing springs. When
the opening spring latches, the indicator will again be visible
at the Charged window.
If operator control voltage is not available, the interrupt-
ers will open. The motor-driven cam in the stored-energy
mechanism will charge the opening and closing springs when
control power is restored to the operator.
Manual closing of the circuit-switcher cannot be performed.
Figure 26. Close-up view of CHARGED and DISCHARGED
position indicators.
Stored
energy
indicator
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