Switch Fixings LIGHTED PUSH BUTTON
Research Notes
1. What this is
M2PA-90A12-24EG is an Omron M2P pilot light/indicator.
2. Part-number decode
- Series: Omron M2P
- Type: pilot light
3. Compatibility & ordering
Omron makes industrial command switches (A22 22mm, A16 16mm — unitized, contact in the model code), illuminated pushbuttons/pilot lights (A3, M2), and a widely-used B3 PCB tactile-switch family. Match by size, function (pushbutton/selector/indicator/E-stop), colour, illumination, and contact arrangement, then use the Omron datasheet to confirm the exact colour and voltage encoded in the part number.
4. Data-quality note
The Omron product line/type is identified; the detailed configuration (colour, contact, voltage) is left to the datasheet rather than guessed. Flagged decoded-partial.
5. Sources
- Omron product catalog (omron.com / components.omron.com)
- Distributor listing (DigiKey / Mouser) — search the exact part number
1 source
- Omron — M2PA-90A12-24EG — omron.com
Especificações
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Device class
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pilot light
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Enriched by
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omron-decoder-2026-08-12
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|
Lead time
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0 Days
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Manufacturer series
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M2P
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Mouser part number
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653-M2PA-90A12-24EG
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Pn status
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decoded-partial
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Rohs status
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RoHS Compliant
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Series description
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Omron M2-series pilot light / indicator (panel-mount LED or lamp indicator; not a pushbutton)
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Referência rápida de instalação
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.
Dimensões
Solução de problemas
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.
Especificações rápidas
- Device class
- pilot light
- Enriched by
- omron-decoder-2026-08-12
- Lead time
- 0 Days
- Manufacturer series
- M2P
- Mouser part number
- 653-M2PA-90A12-24EG
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