Cut Sheet
V7-T1-268 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—June 2015 www.eaton.com
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1.9
Pushbuttons and Indicating Lights
30.5 mm Corrosion Resistant Watertight/Oiltight—E34
Push-Pull Operators
An illuminated push-pull
pushbutton unit, arranged for
one-hole mounting, can
replace two pushbuttons and
a pilot light or the non-
illuminated form can replace
two pushbuttons. These units
are available in three basic
types:
●
Maintained—(Two-
position). Maintains in the
pulled or pushed position
until manually actuated to
the opposite mode.
●
Momentary—(Three-
position). Spring returns to
an intermediate position
when pulled or pushed and
released.
●
Momentary Pull,
Maintained Push—(Three-
position). Spring returns to
intermediate position when
pulled. Maintains in pushed
position until manually
returned to intermediate
(ready to reset) position.
Maintained stop holds
circuit open and will
prevent other series
connected operators from
starting the system.
The operators, buttons,
contact blocks, etc., are
offered as building block
components that can be
intermixed to satisfy many
requirements. This minimizes
the need for a varied and
costly inventory.
Application Guide
To assist in the selection of
contact blocks, the sketch
below shows pictorially by
symbols A and B locations of
contact circuits after
assembly of contact blocks
and adapter to the operator.
The table below shows the
effect of the push and pull
operations on either NO or
NC contacts. (X = contact
closed, O = contact open).
Contact Circuit Locations
Push-Pull Operator Components
Notes
Use NEMA 4X 10250T operators where exposed to ultraviolet light, see Pages V7-T1-182 to V7-T1-253.
See Typical Applications on Page V7-T1-203.
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Shown without button on lens.
2
Maximum of two blocks, four circuits. Special function contact blocks shown on Page V7-T1-286 CANNOT be used with
three-position push-pull operators E34GEB, E34GFB or E34GHB.
Locating Nib
A
B
Type of Operator
Operator Position and Circuit Arrangement
Contact Block
2
Catalog Number
Out—Pull
Intermediate
In—Push
Contact Block Mounting Location
ABABAB
Two-Position Operator without Lens
Maintained push-pull O
X
or
O
X
No intermediate
position
X
O
or
X
O
1NO
1NC
E34GDB
O
X
O
X
X
O
X
O
2NO
2NC
Three-Position Operator without Lens
Momentary push-pull O
X
or
O
X
O
O
or
O
X
X
O
or
O
O
1NO
1NC
E34GEB
2
O
X
O
X
O
O
O
X
X
O
O
O
2NO
2NC
Maintained push-momentary pull O
X
or
O
X
O
O
or
O
X
X
O
or
O
O
1NO
1NC
E34GFB
2
O
X
O
X
O
O
O
X
X
O
O
O
2NO
2NC
Momentary push-pull O
X
or
O
X
O
O
or
O
O
X
O
or
X
O
1NO
1NC
E34GHB
2
O
X
O
X
O
O
O
O
X
O
X
O
2NO
2NC
Two-Position Maint.
Push-Pull
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