3
10250T/E34 Pushbuttons
And Indicating Lights
Instructional Leaflet
P26841
Effective July 2014
EATON
www.eaton.com
EATON
www.eaton.com
Selector Switch Selection And Assembly — Refer To
Contact Block Selection Charts
1. Select intended schematic circuit function. Note in
your “cam” column the type of contact (NO or NC),
the “1” and “2” circuit locations, and any series or
parallel jumper connections that may be required.
2. Choose contact blocks that have the required
schematic circuits and assemble in any convenient
sequence that fulfills the “1” and “2” circuit location
requirements.
3. If applicable, assemble the operator cap.
Recommended, set screw tightening torque for
selector switches is 8 – 12 lb-in (0.9 – 1.35 Nm).
4. The two sections of the operating cam work indepe-
ndently. It is important that the contact blocks be
oriented with their plungers in the correct “1” and
“2” circuit locations. The drawing to the right identi-
fies these positions with respect to the locating nib
on operator or marked top.
5. Assembled operators are factory set for Vertical
Mounting. For Horizontal Mounting, loosen the set
screw and assemble with the locating nib on the left.
otee:
N
Circuits shown illustrate connections to obtain a selector
circuit combination and are shown with their appropriate line dia-
grams in BOLD. Field wiring of jumper connections are required
as shown.
Mounting Location Of Contact Blocks With Respect To
Operator Locating Nib.
2-Position Selector Switch
Number
Desired Circuit and
Cam Code #1
Operator Position
Contact Blocks and
Mounting Location
1
2
1
X
O
2
O
X
4-Position Selector Switch
No.
Desired Circuit and Operator Position
Cam Code #7
Contact Blocks and
Mounting Location
1
2
1
X
O
O
O
2
O
X
O
O
3
O
O
X
O
4
O
O
O
X
5
X
O
O
X
6
O
X
X
O
7
O
O
X
X
8
X
X
O
O
9
O
X
O
X
10
X
O
X
O
NC
NC
NO
NO
or
or
NC
NO
NO
NC
NC (Parallel) NC
NO (Parallel) NO
NO (Parallel) NC
NC (Parallel) NO
NO/NC
(Parallel)
NO/NC
(Parallel)
Locating Nib
1
2
ti
u
c
ri
C
n
e
p
O
=
O
ti
u
c
ri
C
d
e
s
o
l
C
=
X
3-Position Selector Switch
No.
Desired Circuit and
Cam Code #2
Cam Code #3
Operator Position
Contact Blocks and
Contact Blocks and
Mounting Location
Mounting Location
1
2
1
2
1
X
O
O
2
X
X
O
3
X
O
X
4
O
O
X
5
O
X
X
6
O
X
O
NO (Series) NC
NO
NC
NC
NO
NO (Parallel) NO
NO
NO
NC (Parallel) NO
NC
NC
NC (Series) NC
