PUSHBUTTON SWITCHES
P8
COMPACT
COMPACT PUSHBUTTONS PUSHBUTTONS
MOMENTARY OR PUSH-PULL ACTION, SHORTER BEHIND PANEL, SUBMINIATURE DOUBLE BREAK
Makes and breaks every time!
OTTOs inherent rocking action
Style
Style
Style
P8-5
breaks welds and wipes contacts clean. Style
P8-1
P8-3
P8-8
The P8 series pushbutton switches feature a shortened
back panel depth while offering all the features of the regular
size P1 and P3 series switches. P8 series switches offer
vastly improved electrical and mechanical life under extreme
conditions found in most military and industrial environments.
On sealed models, a silicone boot operating on our patented
rolling sleeve principle protects the contact area against
Style
contamination at the button area. This boot provides long life
P8-4
and smooth operation over a wide temperature range. Sealed
Style
Style
terminals protect the contact area from hostile environments
P8-6
P8-7
and solder flux on both sealed and unsealed models.
High contact force (120g/4.2 oz), low contact resistance
and short contact bounce are the result of our snap-action
CUS
mechanism. These characteristics guarantee exceptional
current carrying capabilities over the life of the switch. With
Standard Characteristics/Ratings:
the optional logic level configuration the P8 is well suited to
ELECTRICAL RATINGS:
interface directly to computers and other solid state devices.
Load Sea Level @
The P8 series is a quality precision snap-action switch designed
28VDC or 115VAC, 60/400Hz
for use in panel boards, control sticks, computers, instruments,
Resistive 10A
pressure switches and other hand or machine operated
Inductive 5A
applications where rugged pushbutton switches are required.
Lamp 3A
In addition, its precision permits the OTTO P8 to also be used
DWV 1000Vrms
as a limit switch. The P8 offers unique size, high electrical
Logic Level 10mA @ 5VDC
ratings and a wide choice of mounting styles.
Electrical Life: 100,000 cycles (1,000,000 logic level)
Mechanical Life: 1,000,000 cycles
Seal: Unsealed, IP64 or IP68S
Features:
Operating Temp Range: -55C to +85C
Shorter behind panel depth than OTTOs P1/P3
Operating Force: 2.5 lbs. +0.5 /-1.0 lb. or 4.0 lbs. +/- 1.0 lb.
Patented rolling sleeve button seal
Total Travel: 0.085 +/- 0.015 inches
Overtravel: 0.012 inches min
Contact area sealed at button & terminals
Positive tactile feedback MATERIALS:
Case: Anodized aluminum alloy
Variety of mounting styles
Button: Thermoplastic
Variety of button lengths & shapes
Terminals: Brass with silver or brass with gold over silver for logic level
Engraved buttons & bezels available
Terminal Hardware: Terminal lugs, screws and lockwasher where applicable
Mounting Hardware: Hex nut, lockwasher, panel seal gasket, flat washer when applicable
Mechanical life 1 million cycles
UL recognized & CSA certified
Sealed to IP64 or IP68S
RoHS compliant
Specifications Subject To Change Without Notice www.ottoexcellence.com 179P8
COMPACT
PUSHBUTTONS COMPACT PUSHBUTTONS
MOMENTARY OR PUSH-PULL ACTION, SHORTER BEHIND PANEL, SUBMINIATURE DOUBLE BREAK
Small Bushing P8-6, Style F Bezel
P8-1, Style A Bezel P8-3, Style C Bezel
P8-4: 0.500-32 Bushing 0.625-24 Bushing
Press Fit Bushing 0.625-24 Bushing
Flat Button Shape Shown
Flat Button Shape Shown Flat Button Shape Shown
P8-5: 0.469-32 Bushing
Specify Dia.: 0.312 or 0.375
Specify Dia.: 0.312 or 0.375 Specify Dia.: 0.312 or 0.375
Flat Button Shape Shown
Height: 0.187 or 0.250
Height: 0.187 or 0.250 Height: 0.187 or 0.250
Specify Dia.: 0.312 or 0.375
Height: 0.187 or 0.250
.25
Model Terminal Styles A (inches)
P8-4 1, 2, 4 & 5 0.870
3 & 6 0.984
Terminal Styles A (inches) Terminal Styles A (inches) Terminal Styles A (inches)
P8-5 1, 2, 4 & 5 1.097
1, 2, 4 & 5 0.808 1, 2, 4 & 5 0.683 1, 2, 4 & 5 0.808
3 & 6 1.211
3 & 6 0.922 3 & 6 0.797 3 & 6 0.922
P8-7, Style G Bezel
P8-8, Style H Bezel Dome Push-Pull
0.625-24 Bushing
0.625-24 Bushing Button Shape Button Shape
Flat Button Shape Shown
Flat Button Shape Shown Specify Dia.: 0.312 or 0.375 Available as Button Style P only.
Specify Dia.: 0.312 or 0.375
Specify Dia.: 0.312 or 0.375 Height: 0.187 or 0.250
Height: 0.187 or 0.250
Height: 0.187 or 0.250
Terminal Styles A (inches)
Terminal Styles A (inches)
1, 2, 4 & 5 0.810
1, 2, 4 & 5 0.683
3 & 6 0.924
3 & 6 0.797
ORDERING INFORMATION:
Select the OTTO P8 series switch to
P8 PART NUMBER CODE
match your application requirements.
P8 X X X X X X X
Combinations of features are almost
limitless. When ordering, please use
Bezel Terminal Style/ Circuit Current Rating Level/ Operating Button Button Diameter/
the OTTO Part Number. Style Case Color Form Seal Type Force/Action Color Length/Shape
1. Style A 1. Solder/Silver 1. N.O. 1. 2.5 lbs./Momentary 1. Red A. 0.375/0.250/Flat
1. Std./Unsealed
Example: P8-316329B specifies a C
3. Style C 2. Screw/Silver 2. N.C. 2. 4.0 lbs./Momentary 2. Black B. 0.375/0.250/Dome
2. Std./Moistureproof
4. 0.50-32 THD 3. Faston/Silver 6. 2 Circuit 3. Push-Pull 3. Orange C. 0.375/0.187/Flat
style bezel, silver color case, solder 3. Std./Watertight
5. 0.469-32 THD 4. Solder/Black 4. Yellow D. 0.375/0.187/Dome
4. Logic Level/Moistureproof
terminals, 2 circuit contact configuration,
6. Style F 5. Screw/Black 5. Green E. 0.312/0.250/Flat
5. Logic Level/Watertight
standard contact rating, watertight seal
7. Style G 6. Faston/Black 6. Blue F. 0.312/0.250/Dome
6. Std./Dusttight
8. Style H 7. Purple G. 0.312/0.187/Flat
construction, 4.0 lbs. operating force
8. Gray H. 0.312/0.187/Dome
momentary action, white button 0.375
9. White P. 0.375/0.250/Flat
Faston receptacles: 0.187 on N.O.; 0.110 on N.C. terminals.
diameter by 0.250 long, dome shaped.
Push-pull action available in button style P only.
For logic level switching option, specify
Unsealed units are not recommended for logic level current duty.
P8-316529B.
180 OTTO Full Line Catalog Specifications Subject To Change Without Notice