LIGHTED AND SEALED PUSHBUTTONS
LIGHTED
PUSHBUTTONS
LP3
42 OTTO 2007 Full Line Catalog Specifications Subject To Change Without Notice
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.
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
Momentary,
Raised Dome
Shown
Momentary,
Front Mount
Shown
Standard Characteristics/Ratings:
ELECTRICAL CIRCUIT: SPST-NO Double-break, SPST-NC
Double-break, and SPDT Double-break.
ELECTRICAL RATINGS: (at 28 VDC or 115 VAC, 60/400 Hz.)
LOAD AMPERES
Resistive 5 amp
Inductive 3 amp
Motor 3 amp
Lamp 1 amp
Low Level 10 mA (@30mV)
Electrical Life: 25,000 cycles minimum
Seal: Moistureproof and dusttight to IP64 & M8805
Design 2, Watertight to IP68
Shock: Impact shock 100 G IAW 8805
Operating Force: 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
Mounting: Hexnut, Lockwasher, and *Panel Seal Gasket
* with watertight version only.
Terminals: Faston quick disconnect, suitable for soldering
Standard silver-plated with optional gold plating
for low level applications
LP3 Part Number Code
L P 3 - X X X X X X X - X X
Case Circuit Light Source Type* Seal Operate Case Button Legend
Style Rating w/Rev. Pol. Protection Level Force Color Color Style
E. Exposed Dome 1. SPST N.O./Std. A. 2V Red LED 1. Unsealed 2. 2.5 lb 1. Silver A. Amber, Translucent Refer to Legend
F. Flush Dome 2. SPST N.C./Std. B. 2V Green LED 2. Dusttight 5. 5 lb 2. Black (Use Amber LED) Table on page 83
R. Raised Dome 3. SPDT 2-Circuit/Std. C. 2V Amber LED 3. Watertight R. Red, Translucent for Legend Codes.
1. Press-Fit Mount 4. SPST N.O./Low Level D. 6V Red LED (Use Red LED) Legends Will Be
3. 5/8" Thread Front Mount 5. SPST N.C./Low Level E. 6V Green LED W. White, Translucent Printed In White
4. 15/32" Thread Rear Mount 6. SPDT 2-Circuit/Low F. 6V Amber LED On Amber & Red,
6. 5/8" Thread Rear Mount Level G. 12V Red LED Buttons And In
H. 12V Green LED Black On White
J. 12V Amber LED Buttons.
K. 24V Red LED
L. 24V Green LED
M.24V Amber LED * For super bright LEDs contact factory.
Stop Here for lighted
switches without legends.
LIGHTED AND SEALED PUSHBUTTIONS LIGHTED
PUSHBUTTONS
LP3
Specifications Subject To Change Without Notice www.ottoexcellence.com 43
PUSHBUTTONS
COMMERCIAL GRADE LED LIGHTED AND SEALED AGAINST DUST AND MOISTURE
NORMALLY OPEN
TERMINALS
NORMALLY CLOSED
TERMINALS
.380 REF.
.020 (TYP)
Ø.570 .110 (TYP)
2.150 MAX.
1.838 MAX.
.250 .25
Ø.375Ø.500
Ø.624 ±.001
1.4 0 8 REF. .312
REF.
LED ANODE (+)
LED CATHODE (-)
LP3-1
Momentary, Press-fit Mount
NOTE:
For indicator light only, see LP5 series
NORMALLY OPEN
TERMINALS
NORMALLY CLOSED
TERMINALS
.380 REF.
Ø.570
LED ANODE (+) LED CATHODE (-)
.020 (TYP)
Ø1. 0 4 6
Ø.730
.062
.44
.442
REF.
.110 (TYP)
1.677 MAX.
2.120 MAX.
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
1.247 REF.
LP3-E
Momentary, Exposed Dome Button
NORMALLY OPEN
TERMINALS
NORMALLY CLOSED
TERMINALS
LED ANODE (+) LED CATHODE (-)
Ø.570
.110 (TYP)
.020 (TYP)
1.197 REF.
2.120 MAX.
1.627 MAX. .492
REF
Ø.730
Ø1. 0 4 6
.380 REF.
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
NORMALLY OPEN
TERMINALS NORMALLY CLOSED
TERMINALS
LED ANODE (+) LED CATHODE (-)
Ø.570
.110 (TYP)
.020 (TYP)
.44
2.120 MAX.
1.607 MAX.
1.177 REF.
.512
REF
Ø.730
Ø1. 0 4 6
.380 REF.
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
LP3-R
Momentary, Raised Dome Button
LP3-F
Momentary, Flush Dome Button
LIGHTED AND SEALED PUSHBUTTONS
LIGHTED
PUSHBUTTONS
LP3
44 OTTO 2007 Full Line Catalog Specifications Subject To Change Without Notice
COMMERCIAL GRADE LED LIGHTED AND SEALED AGAINST DUST AND MOISTURE
NORMALLY OPEN
TERMINALS NORMALLY CLOSED
TERMINALS
LED ANODE (+)
LED CATHODE (-)
Ø.570 .110 (TYP)
.020 (TYP)
1.033 REF. .687 REF.
2.150 MAX.
1.463 MAX. .375
Ø.375
.25
Ø.875
Ø.500
.380 REF.
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
LP3-6
Momentary, 5/8” Threaded Rear Mount
NOTE:
For indicator light only, see LP5 series
NORMALLY OPEN
TERMINALS
NORMALLY CLOSED
TERMINALS
Ø.570
LED ANODE (+)
LED CATHODE (-)
.110 (TYP)
.020 (TYP)
1.283 REF.
1.713 MAX. .187 Ø.375
Ø.875
Ø.500
2.150 MAX.
.437
REF.
.310
.25
.380 REF.
.625-24 UNEF-2A THD. TO
WITHIN .062 OF FLANGE
NORMALLY OPEN
TERMINALS
NORMALLY CLOSED
TERMINALS
LED ANODE (+)
LED CATHODE (-)
.110 (TYP)
.020 (TYP)
1.130 REF.
2.150 MAX.
1.560 MAX.
Ø.375
.34
.25
Ø.570
.380 REF.
.469-32 UNS-2A THD. TO
WITHIN .062 OF FLANGE
LP3-3
Momentary, 5/8” Threaded Front Mount
LP3-4
Momentary, 15/32” Threaded Rear Mount