P1-70312
ActiveP1 Heavy Duty Sealed Push Button IP68S
OTTO P1 heavy-duty sealed push button — the classic military push button.
Common Applications
The button on military tank dashboards, submarine control panels, and aircraft weapon systems. Sealed against everything — immersion, salt fog, sand, fungus, shock, vibration. MIL-PRF-8805 qualified. Over 50 years in production. If it can survive combat, it can survive your application.
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Momentary or Maintained
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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MIL-PRF-8805, QPL
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IP Rating
Ingress Protection rating — first digit is dust (0-6), second is water (0-9). Higher is better.
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IP68S
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Aluminum/Stainless steel
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Mechanical Life
How many press cycles before mechanical failure. Higher is better — 10M cycles at 100 presses/day = 274 years.
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100,000 cycles
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Max Operating Temp
Highest temperature the button is rated to operate in.
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175°C
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Min Operating Temp
Lowest temperature the button is rated to operate in.
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-55°C
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Installation Quick Reference
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
Dimensions
Troubleshooting
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
Where to Buy
Price range
$37.24 — $54.01
across 2 distributors
Quick Specs
- Actuator Function
- Momentary or Maintained
- Certifications
- MIL-PRF-8805, QPL
- IP Rating
- IP68S
- Material
- Aluminum/Stainless steel
- Mechanical Life
- 100,000 cycles
What People Are Saying
“The button on military tank dashboards, submarine control panels, and aircraft weapon systems. Sealed against everything — immersion, salt fog, sand, fungus, shock, vibration. MIL-PRF-8805 qualified. ”