Cut Sheet

Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—June 2015 www.eaton.com V7-T1-203
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1.8
Pushbuttons and Indicating Lights
30.5 mm Heavy-Duty Watertight/Oiltight—10250T
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.
Typical Applications
Notes
A and B circuits shown in the application illustrations are defined in the “Application Guide” on the following page.
1
Shown without button on lens.
Control Line—Diagram Operator Circuits Operator Mode
Three-wire
three-position
momentary
Momentary
push and pull
10250T4
2NC
contact block
10250T3
START (mom.) Normal pos.
(maint.)
STOP (mom.)
Momentary
push and pull
10250T10
1NO-1NC
contact block
10250T1
Two-wire
two-position
maintained
Maintained
push and pull
10250T5
1NC
contact block
10250T51
START (maint.) No
intermediate
position
STOP (maint.)
Three-wire
momentary pull
maintained push
Maintained
push and
momentary
pull
10250T9
2NC
contact block
10250T3
START (mom.) Normal pos.
(maint.)
STOP (maint.)
Two-Position
Maintained Push-Pull
1
M
L2L1
OL
M
B Circuit
A
Circuit
Push-Pull
Operator
M
L2L1
OL
B Circuitor
A
Push-Pull
Operator
M
L2L1
OL
M
B Circuit
A
Circuit
Push-Pull
Operator