GE Industrial Solutions BreakMaster Load Interrupter Switch - Manual (Page 14)

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Section 5 – Operation
5.0 Mechanical Safety Interlocks
The GE BreakMaster switch is equipped with switch interlocks and door interlocks as well as provisions for padlocking
in either the open or closed position.
WARNING
Defeating or disengaging safety interlocks on a BreakMaster switch that is
connected to a power source may result in property damage, bodily injury or death.
DO NOT DEFEAT OR DISENGAGE ANY SAFETY INTERLOCKS.
!
DANGER
Make sure that all power sources are deenergized before attempting any maintenance.
!
5.0.1 Switch Interlock
This interlock prevents inadvertent closure of
switch if the enclosure door is open. When the
door is closed, the push rod is depressed by the
door to move the safety latch out of the blocking
position. See Figure 14.
Figure 14
Door operated pushrod
5.0.2 Door Interlock
This interlock prevents the door of the enclosure
from being opened when the switch is closed.
When the switch is closed the door latch is,
captured by the pivot of the operating handle,
preventing the door from being opened.
See Figure 15.
Figure 15
BreakMaster Load Interrupter Switch