Cut Sheet

V7-T1-340 Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—June 2015 www.eaton.com
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1.11
Pushbuttons and Indicating Lights
30.5 mm Class I Division 2 Hazardous Locations—10250T/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 1 and 2 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).
Locating Nibs
Push-Pull Operator Components
Note
Use NEMA 4X 10250T operators where exposed to ultraviolet light.
Locating Nib
12
Type of Operator
Contact
Block
Operator Position and Circuit Arrangement
10250T
Catalog Number
E34
Catalog Number
Out—Pull Intermediate In—Push
Contact Block Mounting Location
121212
Two-Position Operator without Lens
Maintained push-pull 1NO
1NC
O
X
or
O
X
No intermediate
position
X
O
or
X
O
10250T5 E34GDB
2NO
2NC
O
X
O
X
X
O
X
O
Three-Position Operator without Lens
Momentary push-pull
Maintained push-momentary pull
1NO
1NC
O
X
or
O
X
O
O
or
O
X
X
O
or
O
O
10250T4
10250T9
E34GEB
E34GFB
2NO
2NC
O
X
O
X
O
O
O
X
X
O
O
O
Momentary push-pull 1NO
1NC
O
X
or
O
X
O
O
or
O
O
X
O
or
X
O
10250T10 E34GHB
2NO
2NC
O
X
O
X
O
O
O
O
X
O
X
O
10250T_
E34G_