Emergency Stop Switches / E-Stop Switches SWITCH ASSEMBLY
Research Notes
1. What this is
1CPSA21 is a Honeywell pushbutton.
2. Part-number decode
- Series: Honeywell pushbutton
- Type: pushbutton
3. Compatibility & ordering
Honeywell (incl. MICRO SWITCH) makes AML pushbuttons/indicators and snap-action/basic switches. Match by type, actuation, illumination, sealing, and mounting, then use the manufacturer datasheet to confirm the exact contact and termination encoded in the part number.
4. Data-quality note
The exact Honeywell product line/configuration could not be confidently decoded from this part number. Kept and documented; flagged needs-verification.
5. Sources
- Honeywell product catalog (sps.honeywell.com)
- Distributor listing (DigiKey / Mouser) — search the exact part number
1 source
- Honeywell — 1CPSA21 — sps.honeywell.com
Spesifikasi
|
Device class
|
pushbutton
|
|
Enriched by
|
honeywell-decoder-2026-08-12
|
|
Lead time
|
203 Days
|
|
Manufacturer series
|
pushbutton
|
|
Mouser part number
|
785-1CPSA21
|
|
Pn status
|
needs-verification
|
|
Rohs status
|
|
|
Series description
|
Honeywell pushbutton / control switch component
|
Referensi Cepat Instalasi
Panel cutout: 22mm. Mount with the yellow backing plate visible (required by EN/ISO 13850).
Wiring: Wire NC contacts in series with the safety relay input channels. Use dual-channel wiring for SIL 3 / PLe applications. Never wire directly to a motor contactor.
Testing: Press the e-stop and verify the machine stops within the required time. Test the reset mechanism. Repeat monthly per EN/ISO 13850.
Dimensi
Pemecahan Masalah
E-stop won't reset (twist/pull doesn't release)
Check for debris in the mechanism. For twist-release: turn clockwise 45-90 degrees. For push-pull: pull straight out firmly. If the mechanism is stuck, the internal latch may be damaged — replace the entire head assembly.
Machine doesn't stop when e-stop is pressed
Critical safety issue. Immediately lock out the machine. Check wiring — NC contacts must be in series with the safety relay. Verify the safety relay is functioning. A broken wire in an NC circuit should cause a stop, so check for a wiring bypass.
Safety relay faults after e-stop reset
The safety relay detects a cross-fault between the two monitoring channels. Check that both NC contacts on the e-stop are switching simultaneously. One contact may be welded closed — replace the contact block.
Tempat Membeli
Kisaran harga
$370.66 — $370.66
di 1 distributor
Spesifikasi Cepat
- Device class
- pushbutton
- Enriched by
- honeywell-decoder-2026-08-12
- Lead time
- 203 Days
- Manufacturer series
- pushbutton
- Mouser part number
- 785-1CPSA21