P1 MILITARY PUSHBUTTONS PUSHBUTTONS PER MIL-PRF-8805/3 (MS25089) PUSHBUTTONS PER MIL-PRF-8805/3 (MS25089) MOMENTARY ACTION, SEALED, SNAP-ACTION, DOUBLE BREAK The P1 offers a mechanical life that is well beyond the 50,000 Style P1-1 cycles required by MIL-PRF-8805. The double break switching Style P1-3 mechanism has an incredibly fast transfer time, reducing arcing Push Pull Version Style P1-3 and increasing contact life. The inherent wiping action breaks welds and scrubs the contacts clean on every actuation. The P1 switch offers vastly improved life under extreme conditions found in most military environments. Moistureproofing is accomplished in two ways. The pushbutton is sealed with a silicone boot operating on our patented rolling sleeve, providing longer life and smoother operation over a wide Style P1-3 Style P1-5 temperature range. Epoxy seals protect the contacts and terminals from hostile environments and solder flux. Watertight sealing to Commercial (IP68S) and Military (MIL- PRF-8805 Design 3) standards are available. This watertight design is also available in commercial construction as the Style P1-2 P3 series (add W to your part number). Style P1-6 High contact force (120g/4.2 oz), low contact resistance (25m max initial) and short contact bounce result from our snap- action mechanism. These characteristics guarantee exceptional current carrying capabilities over the life of the switch. With the Style P1-7 optional low level (gold plate) configuration, the P1 is well suited to interface directly to computers and other solid state devices. CUS The P1 switch is a quality precision snap-action switch designed for use in panel boards, control grips, computers, Standard Characteristics/Ratings: instruments, pressure switches and other hand or machine ELECTRICAL RATINGS: operated applications where sealed pushbutton switches are Load Sea Level 28VDC 50,000 feet 28VDC required. Its precision permits the P1 to be used as a limit switch or 115VAC, 60/400Hz or 115VAC, 60/400Hz with unique size, high electrical ratings and a wide choice of Resistive 10A N/A mounting styles. Inductive 5A 5A Lamp 3A N/A Motor 3A N/A Features: Center Contact 3A max N/A Button sealed with patented rolling sleeve principle DWV 1050Vrms 400Vrms Low Level 10mA 30mV max DC or peak AC Contact area sealed at button & terminals Electrical Life: 25,000 cycles Less than 25m contact resistance Mechanical Life: 50,000 cycles, circuit forms 3, 4, & 5 Ideal for low level switching as well as up to 250,000 cycles, circuit forms 1, 2 & 6 10 amp duty Seal: MIL-PRF-8805 Design 2 or Watertight per IP68S or MIL-PRF-8805 Design 3 Positive tactile feedback Operating Temp Range: -55C to +85C Variety of mounting styles Operating Force: 2.5 lbs. or 4.0 lbs. Engraved buttons & bezels available Reset Force: 0.75 lb. or 1.0 lb. UL recognized & CSA certified Total Travel: 0.085 +/- 0.015 inches Overtravel: 0.012 inches min Watertight to IP68S available Movement Differential: 0.015 inches min RoHS/WEEE/Reach compliant MATERIALS: Case: Black anodized aluminum alloy Button: Thermoplastic Terminals: Brass with silver plate, gold plate for low level Terminal Hardware: Screws, lockwasher and solder lugs for screw terminal option Mounting Hardware: Hex nut and lockwasher, panel seal on watertight switches 130 OTTO Full Line Catalog Specifications Subject To Change Without NoticePUSHBUTTONS P1 MILITARY PUSHBUTTONS PER MIL-PRF-8805/3 (MS25089) PUSHBUTTONS MOMENTARY ACTION, LOW LEVEL UP TO 10 AMPS P1-1 (MIL-A) P1-7 (MIL-G) P1-2 (MIL-B) P1-8 (MIL-H) P1-3 (MIL-C) Push-Pull Style Shown Unsealed P1-90013 Operating Force: 4.0 +/- 1.0 lb. Circuit: SPDT-DB Case: Black anodized aluminum Button: Black nylon 5 5 P1-5 (MIL-E) Watertight P1-90024 Dusttight P1-90014 Operating Force: 4.0 +/- 1.0 lb. Circuit: SPST-N.O. 52 52 Case: Black anodized aluminum 5 P1-6 (MIL-F) 94 5 94 Button: Red nylon Specifications Subject To Change Without Notice www.ottoexcellence.com 131