ecosyn®-SEF combines a self-locking nut with an integrated conical spring washer and large contact surface. ecosyn®-SEF is a multifunctional fastening element for the safe connection of electrically conductive contacts, especially in the high-voltage range. But ecosyn®-SEF is also excellently suited for purely mechanical connections.
With vibrations applied or external loads on the clamping point, the special thread has proven itself against loosening of the contact screw connections. The washer reduces surface indentations due to the repeat assembly, which ensures a perfect electrical current transmission. The larger contact surface of the ecosyn®-SEF reduces the surface pressure and can be effective for long holes bridge the power transmission.
