P8 COMPACT PUSHBUTTONS PUSHBUTTON SWITCHES MOMENTARY OR PUSH-PULL ACTION, SHORTER BEHIND PANEL, SUBMINIATURE DOUBLE BREAK Makes and breaks every time! OTTO's inherent rocking action breaks, welds and wipes contacts clean. Style P8-5 Style P8-1 Style P8-3 Style 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 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 (120g/4.2 oz), low contact resistance (25m max) and short contact bounce (5ms max) are the result of our patented snap-action mechanism. These characteristics guarantee exceptional current carrying capabilities over the life of the switch. With the optional low level (gold plate) configuration the P8 is well suited to interface directly to computers and other solid state devices. The P8 series is a quality precision snap-action switch designed for use in panel boards, control sticks, computers, instruments, pressure switches and other hand or machine operated applications where rugged pushbutton switches are required. In addition, its precision permits the OTTO P8 to also be used as a limit switch. The P8 offers unique size, high electrical ratings and a wide choice of mounting styles. Style P8-4 Style P8-6 Style P8-7 (R) Standard Characteristics/Ratings: ELECTRICAL RATINGS: Load Sea Level @ 28VDC or 115VAC, 60/400Hz Resistive 10A Inductive 5A Lamp 3A Low Level 10mA @ 30mV Electrical Life: 100,000 cycles Mechanical Life: 1,000,000 cycles Seal: IP64 or IP68S Operating Temp Range: -55C to +85C Features: * * * * * * * * * * * 88 Shorter behind panel depth than OTTO's P1/P3 Patented "rolling sleeve" button seal Contact area sealed at button & terminals Positive tactile feedback Less than 25m contact resistance Variety of mounting styles Variety of button lengths & shapes Engraved buttons & bezels available Mechanical life 1 million cycles UL recognized Sealed to IP64 or IP68S OTTO Full Line Catalog Operating Force: 2.5 lbs. +0.5 /-1.0 lb. or 4.0 lbs. +/- 1.0 lb. Total Travel: 0.085 +/- 0.015 inches Overtravel: 0.012 inches min MATERIALS: Case: Anodized aluminum alloy Button: Thermoplastic Terminals: Brass with silver plate, gold plate for low level Terminal Hardware: Terminal lugs, screws and lockwasher where applicable Mounting Hardware: Hex nut, lockwasher, panel seal gasket when applicable Specifications Subject To Change Without Notice P8 PUSHBUTTON SWITCHES COMPACT PUSHBUTTONS MOMENTARY OR PUSH-PULL ACTION, SHORTER BEHIND PANEL, SUBMINIATURE DOUBLE BREAK P8-3, Style C Bezel 0.625-24 Bushing Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Small Bushing P8-4: 0.500-32 Bushing P8-5: 0.469-32 Bushing "A" (inches) 0.808 0.922 Terminal Styles 1, 2, 4 & 5 3&6 Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Terminal Styles "A" (inches) 1, 2, 4 & 5 0.870 0.984 3&6 1, 2, 4 & 5 1.097 3&6 1.211 Model P8-4 Terminal Styles 1, 2, 4 & 5 3&6 P8-6, Style F Bezel 0.625-24 Bushing "A" (inches) 0.683 0.797 P8-5 Terminal Styles 1, 2, 4 & 5 3&6 "A" (inches) 0.808 0.922 P8-7, Style G Bezel 0.625-24 Bushing P8-8, Style H Bezel 0.625-24 Bushing Dome Button Shape Push-Pull Button Shape Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Flat Button Shape Shown Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Specify Dia.: 0.312" or 0.375" Height: 0.187" or 0.250" Available as Button Style P only. Terminal Styles 1, 2, 4 & 5 3&6 "A" (inches) 0.683 0.797 Terminal Styles 1, 2, 4 & 5 3&6 PUSHBUTTONS P8-1, Style A Bezel Press Fit Bushing "A" (inches) 0.810 0.924 ORDERING INFORMATION: Select the OTTO P8 series switch to match your application requirements. Combinations of features are almost limitless. When ordering, please use the OTTO Part Number. Example: P8-316329B specifies a "C" style bezel, silver color case, solder terminals, 2 circuit contact configuration, standard contact rating, watertight seal construction, 4.0 lbs. operating force momentary action, white button 0.375" diameter by 0.250" long, dome shaped. For low level switching option, specify P8-316529B. Specifications Subject To Change Without Notice P8 PART NUMBER CODE P8 - X X X X X X X Bezel Style Terminal Style/ Case Color Circuit Form Current Rating Level/ Seal Type Operating Force/Action 1. Style A 3. Style C 4. 0.50-32 THD 5. 0.469-32 THD 6. Style F 7. Style G 8. Style H 1. Solder/Silver 2. Screw/Silver 3. Faston/Silver 4. Solder/Black 5. Screw/Black 6. Faston/Black 1. N.O. 2. N.C. 6. 2 Circuit 1. 2.5 lbs./Momentary 1. Std./Unsealed 2. 4.0 lbs./Momentary 2. Std./Moistureproof 3. Push-Pull 3. Std./Watertight 4. Low Level/Moistureproof 5. Low Level/Watertight 6. Std./Dusttight Button Color Button Diameter/ Length/Shape 1. Red 2. Black 3. Orange 4. Yellow 5. Green 6. Blue 7. Purple 8. Gray 9. White A. 0.375"/0.250"/Flat B. 0.375"/0.250"/Dome C. 0.375"/0.187"/Flat D. 0.375"/0.187"/Dome E. 0.312"/0.250"/Flat F. 0.312"/0.250"/Dome G. 0.312"/0.187"/Flat H. 0.312"/0.187"/Dome P. 0.375"/0.250"/Flat Faston receptacles: 0.187" on N.O.; 0.110" on N.C. terminals. Push-pull action available in button style "P" only. Unsealed units are not recommended for low level current duty. www.ottoexcellence.com 89