Low-voltage switch gears
Durable and efficient.
The sophisticated range from eaw Relaistechnik incorporates a broad spectrum of low-voltage switch gears, including powerful air-break contactors, auxiliary contactors, thermal overcurrent relays, condenser contactors and vacuum contactors.
All devices offer excellent operating safety levels and a long service life to ensure that the separation, protection and switching processes in every motor environment can function reliably.
When separating contacts, sparks/switch arcs emerge – especially if an inductive load or direct current is activated. Electrical emissions are unavoidable as a result of the emerging contact erosion. Contactors have arcing or vacuum chambers in which arcs are slowly suppressed with the help of magnetic fields or fire-extinguishing devices (air, vacuum or noble gas).
Contactors have been specially designed to accommodate the frequent switching of three phase/asynchronous motors. They operate under the most extreme conditions, which include in mines, smelting works and wooden mills.