Schneider Electric technologies
Control & Automation / Machine Safety
Harmony Emergency Stop (XALK / ZB5)
The visible part of every safety system. Harmony e-stop actuators use the standard 22 mm mounting, latch mechanically when pressed and release only by a deliberate twist or key, so a machine can never restart because someone brushed past the button. Pre-assembled enclosed stations are used where an e-stop is needed away from the panel — along a conveyor, at a loading point or beside a maintenance access.
Key characteristics
- 22 mm mushroom head, latching with turn or key release
- Forcibly guided NC contact blocks, single or multiple
- Enclosed command stations rated IP66 for field mounting
- Trigger-action mechanism monitored by the safety relay/controller
- Illuminated and marked variants for high-visibility installations
Typical applications
Machine-side and line-side emergency stop and command posts
Manufacturer documentation