Emergency Stop Switches / E-Stop Switches PBES16 28 INCA 28V A C/DC 40mA 1NC 1NC
Specifications
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Device class
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switch/component
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Enriched by
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te-alcoswitch-decoder-2026-08-12
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Lead time
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140 Days
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Manufacturer series
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numeric series
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Mouser part number
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655-3-2381880-5
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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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TE Connectivity numeric-series switch or switch component (toggle/rocker/tactile; the leading 'n-' is a packaging/reel prefix). Exact type per the TE datasheet
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Installation Quick Reference
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.
Dimensions
Troubleshooting
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.
Quick Specs
- Device class
- switch/component
- Enriched by
- te-alcoswitch-decoder-2026-08-12
- Lead time
- 140 Days
- Manufacturer series
- numeric series
- Mouser part number
- 655-3-2381880-5