SEALED DOME PUSHBUTTON SWITCHES
DOME
PUSHBUTTONS
P9
74 OTTO 2007 Full Line Catalog Specifications Subject To Change Without Notice
ATTRACTIVE AND RUGGED FOR WET & DUSTY ENVIRONMENTS
The OTTO P9 series pushbutton switches feature a contoured Dome
style pushbutton and share similar size and characteristics to the
OTTO P7 series. Major differences are plastic housing construction
and the availability of a shorting bar contact arrangement. There are
two button versions: low button profile and high button profile. The
P9 comes with a threaded case for hex nut mounting or with a snap-
in case. The switch series features short behind-panel depth. They
also offer excellent mechanical and electrical performance while
operating under severe conditions found in demanding applications.
The OTTO P9 Dome series is offered in dusttight and moistureproof
sealed construction. Expect a minimum of 25,000 operations at full
rated load of 5 amperes resistive or 3 amperes inductive; up to a
million operations in low signal switching.
Watertight sealing (IP68) submersible to 1 meter water pressure is
available. Add “W” suffix to the part number to specify IP68 rating.
The OTTOP9 Dome series is available in standard and low-force
double-break snap-action and non-snap shorting bar models. All are
momentary action. Special contact variations are available. High
contactpressure and unique contact design provide low contact
resistance for low level switching capability as well as full rated
service. Solder, PC Pin, and .110” Quick Connect termination options
are available.
Positive tactile feedback signaling the operator when the switch is
operated is available in snap-action models but not shorting bar models.
The OTTO P9 Dome series is a quality precision switch designed for
use in panels, control grips, computers, instruments, heavy equipment
and other demanding applications where attractive, rugged
pushbutton switches are required.
Quality Features:
•Attractive Dome style button
• Two button heights
• Double-break or Shorting bar, momentary action
• All plastic housing and button construction
• Threaded body or snap-in panel mounting
• Withstands extreme shock & vibration
• Positive tactile feedback contact transfer on
snap-action models
• Solder, P.C. Pin, and .110” Quick Connect terminal styles
Snap-in case with
.110” Quick Connect Terminals
Standard Characteristics/Ratings:
OPERATIONAL:
Mechanical Life: 1,000,000 cycles, minimum
Seal: Moistureproof and dusttight to IP64 & MIL-PRF-8805 Design 2
Watertight to IP68
Operating Force: Standard: 1.7±.5 lbs.
Low Force: 12 oz., ±4 oz.
Total Travel: .080 max.
Temperature Range: -55°C to +85°C
Case/Bezel: Thermoplastic
Button: Thermoplastic. Standard Case/Bezel is Black.
Mounting Hardware: Hexnut & Lockwasher
Torque Hexnut to 10 in./oz. max.
Contacts: Gold Plated Silver Alloy
ELECTRICAL: Snap-Action: at 28 VDC or 115 VAC, 60/400 Hz.
Shorting Bar: at 5VDC
Current Rating Operational Life
(Min. Cycles)
Load Snap-Action Shorting Bar Snap-Action Shorting Bar
Resistive 1A 10mA 1,000,000 1,000,000
Resistive 5A N/A 25,000 N/A
Inductive 3A N/A 25,000 N/A
Dielectric Withstand: 1050 Vrms
SEALED DOME PUSHBUTTON SWITCHES DOME
PUSHBUTTONS
P9
Specifications Subject To Change Without Notice www.ottoexcellence.com 75
PUSHBUTTONS
CHOICE OF SNAP-ACTION & SHORTING BAR ACTION
Ordering Information
Select the OTTO P9 series features that
matchyourspecificapplication. Standard
and special features are shown at right.
Specify your choice by building the
OTTO Part Numbering code.
Example: P9-211121 specifies raised
dome style button, threaded case,
solder terminals, N.O. circuit form,
standard snap-action, black case/bezel,
red button.
• Snap-in Case allows front panel mounting into .024 or .118 thick panels using
panel gasket 401669 or into .031 and .125 thick panels
• .110" Quick Connect terminals allow reliable, solderless wire connections
• Flush Neoprene Boot P/N 402339
• Raised Neoprene Boot P/N 402246
* Must use panel gasket 401669 supplied with the switch.
Raised Dome Button Style
Flush Dome Button Style
Snap-in Case
.110” Quick Connect Detail
15/32-32 UNRS-2A THD
to within .062 of shoulder
15/32-32 UNRS-2A THD
to within .062 of shoulder
Recommended Panel Openings
*Panel Thickness Recommended Ø DIM. Across D-Flat
.024* Ø .505 .460
.031 Ø .505 .460
.118* Ø .505 .460
.125 Ø .505 .460
P9-XXXXXX
Button and Case Terminal Circuit Switch Case/Bezel Button
Style Style Form Action Color Color
1. Flush Dome with threaded case 1. Solder 1. N.O. 1. Standard Snap-Action 1. Red 1. Red
2. Raised Dome with threaded case 2. PC pin 2. N.C.
➀
2. Low force Snap-Action 2. Black 2. Black
3. Flush Dome with snap-in case 3. .110" 3. 2-Circuit
➀
3. Non-Snap Shorting Bar 3. Orange* 3. Orange*
4. Raised Dome with snap-in case Quick Connect 4. Yellow 4. Yellow
5. Green 5. Green
➀
Not available in Shorting Bar version. 6. Blue 6. Blue
7. Purple 7. Purple
8. Gray 8. Gray
9. White 9. White
(As viewed from switch bottom.)
* Add “W” suffix for watertight.
Contact factory for matte finish options
*
* Contact factory for minimum requirement.
