Technical Data Bulletin
19-78
© 2019 Schneider Electric
All Rights Reserved
30 mm Push Buttons
Type K, KX, and SK Selector Switch Guide
schneider-electric.us
Class 9001 / Refer to Catalog 9001CT1103
Type K, KX, and SK Selector Switch Guide
Selection
Shown below is a simplified method of selecting a selector switch to
meet almost any combination of contact sequences.
Step No. 1
Determine the contact sequence(s) required. Set up a target table like
the one shown for the example below.
Contact Sequence
0—contact open 1—
contact closed
A 1 0 0
B 0 1 0
C 0 0 1
Step No. 2
Look for a cam type common to all sequences in:
Table 19.232 2 Position Selector Switch, page 19-78,
Table 19.233 3 Position Selector Switch, page 19-78, or
Table 19.234 4 Position Selector Switch, page 19-78.
For the example above, Table 19.233 3 Position Selector Switch, page
19-78 would be used.
For the contact sequences A (1 0 0), B (0 1 0) and C (0 0 1) of
the example above, cam types F and L are common to all
three sequences.
Step No. 3
Next, use the cam type common to all the sequences (if several cam
types are common, choose one) to find the operator type number. Go
to the proper reference topic as indicated in the table below:
Number of
Positions
Push Button
Line
Reference topics
2
Type K,
Type SK,
Type KX
Type K, page 19-75
Type SK, page 19-85
“H” Numbers, page 19-93
Type KX with Contacts, page 19-102
Type KX without Contacts, page 19-104
3
Type K,
Type SK,
Type KX
Type K, page 19-76
Type SK, page 19-86
“H” Numbers, page 19-93
Type KX with Contacts, page 19-102
Type KX without Contacts, page 19-104
4
Type K,
Type SK,
Type KX
Type K, page 19-77
Type SK, page 19-87
Type KX, page 19-102
If for the example above a manual return operator with a standard
black knob is required and:
The F cam type is chosen, the operator type number is:
•
Type K—Class 9001 Type KS46B, page 19-76
•
Type SK—Class 9001 Type SKS46B, page 19-86
•
Type KX—Class 9001 Type KXSDFB, page 19-104
The L cam type is chosen, the operator type number is:
•
Type K—Class 9001 Type KS401B, page 19-76
•
Type SK—Class 9001 Type SKS401B, page 19-86
•
Type KX—Class 9001 Type KXSDLB, page 19-104
Step No. 4:
Determine the contact blocks required by using the same table in Step
No. 2.
If, for the example above, the F cam type is chosen:
•
Use a 9001KA3 mounted on side no. 2 for sequence A (1 0 0).
•
Use a 9001KA3 mounted on side no. 1 for sequence B (0 1 0).
•
Use a 9001KA2 mounted on side no. 1 or 2 for sequence
C (0 0 1).
If, for the example above, the L cam type is chosen:
•
Use a 9001KA2 mounted on side no. 2 for sequence A (1 0 0).
•
Use a 9001KA2 mounted on side no. 1 or a 9001KA3 mounted on
side no. 2 for sequence B (0 1 0).
•
Use a 9001KA3 mounted on side no. 1 for sequence C (0 0 1).
One Type KA1 double circuit block can be used in place of one Type
KA2 single circuit block plus one Type KA3 single circuit block
mounted on the same side.
Table 19.232: 2 Position Selector Switch
If you require
contact sequence—
Use Cam Type
Use Contact
Block Type
Mount on
side no. [42]
1 0
E KA3 1 or 2
D KA2 1 or 2
0 1
E KA2 1 or 2
D KA3 1 or 2
Table 19.233: 3 Position Selector Switch
If you require
contact sequence—
Use Cam Type
Use Contact
Block Type
Mount on
side no. [42]
1 0 0
G M KA2 1
L KA2 2
C E KA3 1
B C E F G J KA3 2
B G J
KA5 [43]
2
0 1 0
D E J L KA2 1
D E KA2 2
F KA3 1
L KA3 2
0 0 1
C F KA2 1 or 2
B D G L KA3 1
D KA3 2
B
KA5[43]
1
M KA2 2
1 1 0
B KA2 1
C F
KA5 [43]
1 or 2
M KA3 2
0 1 1
B G J KA2 2
G
KA5[43]
1
L
KA5 [43]
2
M KA3 1
1 0 1
J KA3 1
D E J L
KA5[43]
1
D E
KA5[43]
2
Table 19.234: 4 Position Selector Switch
If you require
contact sequence—
Use Cam Type
Use Contact
Block Type
Mount on
side no. [42]
1 0 0 0 H
(A) KA3
2
0 1 0 0 H
(B) KA2
1
0 0 1 0 H
(C) KA2
2
0 0 0 1 H
(D) KA3
1
1 0 0 1 H A & D Wired in Parallel
1 1 0 0 H A & B Wired in Parallel
0 1 1 0 H B & C Wired in Parallel
0 0 1 1 H C & D Wired in Parallel
1 1 1 0 H
A, B & C Wired in Parallel
0 1 1 1 H
B, C & D Wired in Parallel
1 0 1 0 H A & C Wired in Parallel
0 1 0 1 H B & D Wired in Parallel
1 1 0 1 H
KA5 [43]
2
1 0 1 1 H
KA5 [43]
1
NOTE: For Outline Dimensions see Catalog 9001CT1103
NOTE: When ordering, add prefix 9001 to the catalog number.
KA1
KA3
KA2
=
+
=
+
When ordering, please specify:
•
Quantity
•
Class Number
•
Type or Catalog Number
For “H” Numbers, see Type K, SK, and KX Contact Block “H” Numbers, page 19-93
19
PUSH BUTTONS AND OPERATOR
INTERFACE
[42] See Type K, SK, and KX Contact Block “H” Numbers, page 19-93
[43] Type KA5 must be the last block on either side. If more than one KA5 is required on either side—contact your local Square D sales office.