Interlock Switches
Optional external interlock switches are required with some doors to prevent the door from operating under
certain conditions including the following:
• If the door is equipped with a functioning door lock, an interlock switch (A) must be installed to
prevent electric operation when the lock is engaged.
• If the door is equipped with a pedestrian pass-through door, an interlock switch (B) must be installed at
the pass-through door in order to prevent electrical operation when the pass-through door is open.
• If the door is equipped with a dock leveler the interlock circuit may be connected to the dock leveler to
prevent motor operation when the leveler is not in the down position.
NOTE: If external interlock is used, the jumper wire between the
EXT INTLK terminals MUST be removed.
Pass door interlock:
Sec-3.8
Section 3: Wiring
B
Should be open when
door is open.
Closed when door
is closed.
Side lock interlock:
Should be open when door
is locked. Closed when door
is unlocked.
SWITCH
075412-0000
(N.O.)
ANGLE
405964-0000
TRACK
A
STANDARD
SLIDELOCK
CONTROL SIGNAL TERMINAL STRIP
EXT
EXT
INTLK
INTLK
* REMOVE
*
JUMPER
WHEN
INSTALLING
EXTERNAL
INTERLOCK
SWITCH (N.C.) P/N 110324.0001
For Sectional Door
SWITCH (N.C.) P/N 110325.0001
For Rolling Steel Door