Instructional Leaflet
P26841
Effective July 2014
10250T/E34 Pushbuttons
And Indicating Lights
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
© 1999 Eaton
All Rights Reserved
Publication No. P26841 / 004
August 2014
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
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Out — Pull
Intermediate
In — Push
Contact Block Mounting Location
1
2
1
2
1
2
2-Position Operator without Lens
X
X
O
O
O
N
I
Maintained Push-Pull
10250T5/E34GDB
O
O
X
X
C
N
I
X
X
O
O
O
N
2
O
O
X
X
C
N
2
3-Position Operator without Lens
Momentary Push-Pull
10250T4/E34GEB
1NO
O
O
O
O
X
O
1NC
X
X
O
X
O
O
Maintained Push-
10250T9/E34GFB
2NO
O
O
O
O
X
O
O
O
X
O
X
X
C
N
2
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P
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m
o
M
1NO
O
O
O
O
X
X
Momentary Push-Pull
10250T10/E34GHB
1NC
X
X
O
O
O
O
2NO
O
O
O
O
X
X
2NC
X
X
O
O
O
O
or
No Intermediate
Position
or
or
or
or
or
or
or
Push-Pull Operators — Contact Block Selection
And Assembly
The illustration to the right assists in the selection of
contact blocks. Symbols 1 and 2 show locations of
contact circuits after assembly of contact blocks and
adapter to the operator. The chart below shows the
effects of the push and pull operations on either NO
or NC contacts.
Grounding Of 10250T And E34 Components General
With any electrical component there is the possibility of a
loose wire, moisture, etc. causing a short circuit between
the component and ground. If the device is adequately
grounded, the condition causes the protective fuse or circuit
breaker to open and remove the potential. If not, an electri-
cal hazard may remain unnoticed.
Grounding Nibs — 10250T
The 10250T operator is designed to make direct metallic
contact to the rear of the panel (with no intervening spacer
washers to interfere with component-to-panel ground con-
tinuity). As a further aid in establishing an electrical ground,
the operator has four metal points (“grounding nibs”)
designed to penetrate most paints or other protective coat-
ings.
Penetration of these nibs is dependent upon the torque
applied to the mounting nut. Recommended torque is 5 ft-
lbs (6.8 Nm). More or less may be necessary to penetrate
the specific type and thickness of your panel coating. Test
for continuity to ground after installation. If a short circuit
to ground does occur, the fault should be corrected and the
device replaced.
Earth Ground Terminals — E34
These devices are supplied with an integral earth/ground
terminal. A 6-32 terminal screw will accommodate ring type
terminations for bonding to international specifications.
Locating Nib
1
2
Earth
Terminal
Nibs
