Product Overview: The KE-FKR1 and KE-FKR1T series are engineered to prevent three-phase motors from being damaged by critical grid faults such as phase failure and neutral loss. Operating with a fixed 20% unbalance tolerance, these devices ensure speed and reliability in panel assembly thanks to their adjustment-free design. They represent the most essential protection solution for extending motor life in 380V systems.

Difference between KE-FKR1 and KE-FKR1T: The main difference between these two models lies in their mounting and connection structure; while the KE-FKR1 is a standard DIN rail type model, the KE-FKR1T offers a slight variation in terminal structure or mounting detail (T: Terminal/Rail), while maintaining the same technical specifications. This provides flexibility for different panel designs.