User Guide
Wiring of Type S Auxiliary Switches
Denoted by a “ ”, “ ”, “ ”, or “ ” in column four of the interlock part number. (EX. KFL 00010S-CM)
Wiring of Type K Auxiliary Switches
Auxiliary switches are an option for most styles of interlocks. Four different styles of slow-make, slow-break S
switches are available as shown by the chart below.
Instructions for wiring Type S switches:
1) Remove the cover.
2) Run wires into the switch housing and terminate on appropriate terminals.
3) Replace the switch cover.
4) Test the wiring to verify that the circuitry corresponds to the proper lock bolt position.
Denoted by a “ ” in column four of the interlock part number.
The Type K auxiliary switch is an option that is available for most styles of interlocks. The Type K is normally a
DPDT, quick-make, quick-break toggle switch. (Note: other styles of toggle switches are available by special
order)
Instructions for wiring the Type K Switch:
1) Remove the cover.
2) Remove the toggle switch (three screws).
3) Run the wires into the switch housing and terminate on the appropriate terminals.
4) Reattach the toggle switch to the housing (three screws).
5) Replace the switch cover.
6) Test the wiring to verify that the circuitry corresponds to the proper lock bolt position.
Note: The Type S and Type K Auxiliary switches cannot be added to existing interlocks in the field.
345 6 3
1
Contact Arrangement:
(EX. KFL 00010S-CM)1
PAGE 7
IB/B-T/06
Type of Switch
Number of Circuits
Make Contacts
Break Contacts
Conduit Opening
Length of Switch Housing
Contact Arrangement:
Type S
2
1
1
3/4”
3-1/2”
Type SS
4
2
2
1”
5-3/4”
Type SSS
6
3
3
1”
8-1/4”
Type SSSS
8
4
4
1”
9-5/8”
INTERLOCK INSTRUCTION MANUAL
Type F Interlock
with Type SS
Auxiliary Switch
Lock Bolt
Extended
Type F Interlock
with Type SS
Auxiliary Switch
Lock Bolt
Withdrawn
3 6
1 4
2
5
D
P
T
D
To
g le
g
S
w
tc
i h
Lock Bolt
Extended
Contacts Closed:
1-2, 4-5
Lock Bolt
Withdrawn
Contacts Closed:
The Set of Contacts Nearest the
2-3, 5-6
Lock Bolt are Closed when the
Lock Bolt is Extended and Open
when the Lock Bolt is Withdrawn