Sealed Momentary Pushbutton Switch | 10A, 3 Terminal, Red

Product Description

The P1 offers a mechanical life that is well beyond the 50,000 cycles required by MIL-PRF-8805. The dual break switching mechanism has an incredibly fast transfer time, reducing arcing 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 temperature range. Epoxy seals protect the contacts and terminals from hostile environments and solder flux.

Watertight sealing to Commercial (IP68S) and Military (MIL-PRF8805 Design 3) standards are available. This watertight design is also available in commercial construction as the P3 series (add “W” to your part number).

High contact pressure (120g/4.2 oz), low contact resistance (25m max) and short contact bounce (5ms max) result from 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 P1 is well suited to interface directly to computers and other solid state devices.

The P1 switch is a quality precision snap-action switch designed for use in panel boards, control grips, computers, instruments, pressure switches and other hand or machine operated applications where sealed pushbutton switches are required. Its precision permits the P1 to be used as a limit switch with unique size, high electrical ratings and a wide choice of mounting styles

This P1 switch (EDMO# M25089-1AR) has a style A case, standard screw terminal style, normally open circuit, 4 lb momentary switch action, and a red button.

Specifications

• Resistive Load:
  10A
• Inductive Load:
  5A
• Lamp Load:
  3A
• Motor Load:
  3A
• Center Contact Load:
  3A (max)
• DWV Load:
  1050Vrms (Sea Level @ 28VDC or 115VAC, 60/400Hz), 400Vrms (50,000 feet @ 28VDC or 115VAC, 60/400Hz)
• Low Level Load:
  10mA @ 30mV max DC or peak AC
• Electrical Life:
  25,000 cycles
• Mechanical Life:
  50,000 cycles
• Seal:
  MIL-PRF-8805 Design 2 or IP68S
• Operating Temp Range:
  -55°C to +85°C
• Operating Force:
  4.0 lbs.
• Reset Force:
  1.0 lb.
• Total Travel:
  0.085 +/- 0.015 inches
• Over-travel:
  0.012 inches (min)
• Movement Differential:
  0.015 inches (min)
• Case:
  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

Product Codes

• Mfr Part No
  MS25089-1AR / P1-12121
• ECCN
  EAR99
• SCHEDULE B CODE
  8536.50.9040