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- Schneider Electric XALK178E Harmony XALK Emergency Stop Station 40mm Turn to Release 1NO 1NC Control Station Schneider Electric XALK178E Harmony XALK Emergency Stop Station 40mm Turn to Release 1NO 1NC Control Station
Schneider Electric XALK178E Harmony XALK Emergency Stop Station 40mm Turn to Release 1NO 1NC Control Station
Schneider Electric XALK178E Harmony XALK Emergency Stop Station 40mm Turn to Release 1NO 1NC Control Station
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- Description
The Schneider Electric XALK178E is a complete Harmony XALK control station for emergency stop and emergency switching off, built around an unmarked 40 mm red mushroom-head push button with turn-to-release reset, wired 1NO + 1NC. The yellow-lidded polycarbonate housing is rated IP66/IP67/IP69/IP69K for washdown-exposed emergency stop points.
Technical Specifications
| SKU | XALK178E |
| GTIN | 3389110113662 |
| Brand | Schneider Electric |
| Range | Harmony XALK |
| Product type | Complete control station |
| Destination | For XB5 22 mm control and signalling units |
| Application | Emergency stop function | Emergency switching off function |
| Base colour | Light grey (RAL 7035) |
| Cover colour | Yellow (RAL 1021) |
| Material | Polycarbonate |
| Composition | 1 mushroom head push-button, 40 mm, red, 1NO + 1NC, unmarked |
| Reset | Turn to release |
| Contacts | 1 NO + 1 NC |
| Operating force | 44 N |
| [Ith] conventional thermal current | 10 A |
| [Ui] rated insulation voltage | 600 V (pollution degree 3) |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Terminals | Screw clamp, <= 2 x 1.5 mm² with cable end |
| IP degree of protection | IP66/IP67/IP69/IP69K |
| NEMA degree of protection | NEMA 4X/13 |
| IK degree of protection | IK03 |
| Ambient temperature, operation | -40...70 °C |
| Net weight | 0.194 kg |
| Country of origin | CZ |
Certifications & Standards
- IEC 60947-5-1
- IEC 60947-5-4
- IEC 60947-5-5
- UL 508
- CSA C22.2 No 14
- ISO 13850
- IEC 60204-1
Selection Notes
The added 1NO contact alongside the safety 1NC lets this station feed a status or monitoring signal (for example to a PLC input confirming the stop state) from the same button that breaks the safety circuit. Where only the 1NC safety contact is needed, the simpler XALK178 covers it; where two independent NC circuits are required, the XALK178F doubles the NC output instead.