IS15ABFP4ST
ActiveIS 15mm Sealed Push Button MIL-SPEC
APEM IS series sealed push button for military and aerospace applications.
Common Applications
Found on military aircraft instrument panels, naval command consoles, and armored vehicle dashboards. Sealed against sand, dust, salt fog, and temporary immersion. Designed to MIL-DTL-3950. If it needs to work in a war zone, this is the button.
Specifications
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Momentary
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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-DTL-3950, CE
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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15mm
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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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IP68
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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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Anodized aluminum
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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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500,000 cycles
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Max Operating Temp
Highest temperature the button is rated to operate in.
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85°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: 15mm. 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
$3.56 — $48.63
across 2 distributors
Quick Specs
- Actuator Function
- Momentary
- Certifications
- MIL-DTL-3950, CE
- Cutout Diameter
- 15mm
- IP Rating
- IP68
- Material
- Anodized aluminum
What People Are Saying
“Found on military aircraft instrument panels, naval command consoles, and armored vehicle dashboards. Sealed against sand, dust, salt fog, and temporary immersion. Designed to MIL-DTL-3950. If it need”