The new SL interlock-device
With the new retrofittable locking device, single-pole NH fuse-switch- disconnectors can now also be protected against unauthorized operation. And this is not only possible in the closed position of the switch: In the parking position of the switching handle a padlock can effectively prevent the operation of the NH fuse-switch-disconnector.
Each phase is saved individually. The necessary locking lugs can be retrofitted easily and quickly. The necessary openings in the handle can be made by the customer.