LP3
LIGHTED
PUSHBUTTONS
LIGHTED AND SEALED PUSHBUTTONS
COMMERCIAL GRADE LED LIGHTED AND SEALED AGAINST DUST AND MOISTURE
The LP3 offers rugged, sealed construction with the added benefit of
reliable LED illumination.
The LP3 is a precision snap-action switch designed for use in Off-
Highway, Material Handling, Industrial Controls, Marine, Medical and
demanding Commercial applications. Choose from the standard
mounting styles and electrical ratings, or contact us for custom
configurations.
On sealed models, a silicone boot operating on our patented “rolling
sleeve” principle protects the contact area against contamination at the
button area. This boot provides long life and smooth operation over a
wide temperature range. Sealed terminals protect the contact area from
hostile environments and solder flux on both sealed and unsealed models.
High contact pressure, amazingly low (25 milliohms maximum, standard)
contact resistance and extremely low contact bounce are all the result
of the OTTO patented snap-action mechanism. Extra long electrical life
and precise trip point offer added value and precision operation.
Momentary,
Raised Dome
Shown
Standard Characteristics/Ratings:
ELECTRICAL CIRCUIT:
SPST-NO Double-break, SPST-NC
Double-break, and SPDT Double-break.
Momentary,
Front Mount
Shown
ELECTRICAL RATINGS:
(at 28 VDC or 115 VAC, 60/400 Hz.)
LOAD
Resistive
Inductive
Motor
AMPERES
5 amp
3 amp
3 amp
1 amp
10 mA (@30mV)
Quality Features:
• Watertight to IP68. Moistureproof and dusttight to IP64 &
M8805 Design 2
• LED lighted with the ability to accommodate 2, 6, 12 & 24
VDC power and include reverse voltage protection
• Tall & domed styled buttons in translucent white, red
and amber permitting sublimated and pad printed legends
• Less than 25 milliohms contact resistance
• Quick disconnect terminals
• 15/32" & 5/8" thread, press-fit and domed case
styles available
Mounting:
Terminals:
Electrical Life:
Seal:
Shock:
Operating Force:
Lamp
Low Level
25,000 cycles minimum
Moistureproof and dusttight to IP64 & M8805
Design 2, Watertight to IP68
Impact shock 100 G IAW 8805
2.5 ± 1 .5 lbs. and 5 ± 1.0 lbs.
Operating Temperature Range:
-55ºC to + 85ºC
Materials:
Case: Aluminum anodized black and clear
Button: Thermoplastic
Hexnut, Lockwasher, and *Panel Seal Gasket
* with watertight version only.
Faston quick disconnect, suitable for soldering
Standard silver-plated with optional gold plating
for low level applications
LP3 Part Number Code
L P 3 -
Case
Style
E. Exposed Dome
1.
F. Flush Dome
2.
R. Raised Dome
3.
1. Press-Fit Mount
4.
3. 5/8" Thread Front Mount 5.
4. 15/32" Thread Rear Mount 6.
6. 5/8" Thread Rear Mount
X
X
X
Seal
Level
X
X
Operate
Force
2. 2.5 lb
5. 5 lb
X
X
Case
Color
1. Silver
2. Black
-
X X
Button
Color
A. Amber, Translucent
(Use Amber LED)
R. Red, Translucent
(Use Red LED)
W. White, Translucent
Circuit
Rating
Light Source Type*
w/Rev. Pol. Protection
A. 2V Red LED
B. 2V Green LED
C. 2V Amber LED
D. 6V Red LED
E. 6V Green LED
F. 6V Amber LED
G. 12V Red LED
H. 12V Green LED
J. 12V Amber LED
K. 24V Red LED
L. 24V Green LED
M.24V Amber LED
Legend
Style
Refer to Legend
Table on page 83
for Legend Codes.
Legends Will Be
Printed In White
On Amber & Red,
Buttons And In
Black On White
Buttons.
SPST N.O./Std.
SPST N.C./Std.
SPDT 2-Circuit/Std.
SPST N.O./Low Level
SPST N.C./Low Level
SPDT 2-Circuit/Low
Level
1. Unsealed
2. Dusttight
3. Watertight
Stop Here
for lighted
switches without legends.
* For super bright LEDs contact factory.
42
OTTO 2007 Full Line Catalog
Specifications Subject To Change Without Notice
LP3
LIGHTED AND SEALED PUSHBUTTIONS
COMMERCIAL GRADE LED LIGHTED AND SEALED AGAINST DUST AND MOISTURE
LP3-E
Momentary, Exposed Dome Button
NORMALLY OPEN
TERMINALS
1.247 REF.
.062
LIGHTED
PUSHBUTTONS
PUSHBUTTONS
.380 REF.
NORMALLY CLOSED
TERMINALS
.020 (TYP)
Ø 1.046
.110 (TYP)
LED ANODE (+)
Ø .570
LED CATHODE (-)
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
.44
1.677 MAX.
.442
REF.
Ø .730
NOTE:
For indicator light only, see LP5 series
2.120 MAX.
LP3-F
Momentary, Flush Dome Button
NORMALLY OPEN
TERMINALS
.380 REF.
NORMALLY CLOSED
TERMINALS
.020 (TYP)
.110 (TYP)
1.197 REF.
Ø 1.046
LED ANODE (+)
Ø .570
LED CATHODE (-)
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
Ø .730
1.627 MAX.
2.120 MAX.
.492
REF
LP3-R
Momentary, Raised Dome Button
NORMALLY OPEN
TERMINALS
.380 REF.
NORMALLY CLOSED
TERMINALS
.020 (TYP)
2.120 MAX.
1.177 REF.
Ø 1.046
.44
.110 (TYP)
LED ANODE (+)
LED CATHODE (-)
Ø .570
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
1.607 MAX.
.512
REF
Ø .730
LP3-1
Momentary, Press-fit Mount
NORMALLY OPEN
TERMINALS
.380 REF.
NORMALLY CLOSED
.020 (TYP)
TERMINALS
2.150 MAX.
1.408 REF.
.312
REF.
Ø .570
LED ANODE (+)
LED CATHODE (-)
.110 (TYP)
Ø .375
Ø .624
±.001
Ø .500
.250
1.838 MAX.
.25
Specifications Subject To Change Without Notice
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43
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