Eaton 10250ED824 Replacement Key 30 mm H661

Eaton 30 mm Replacement Key

The Eaton 10250ED824 is a replacement key designed for 30 mm operator devices that use the H661 lock cylinder. It provides a direct mechanical match for industrial control panels and electrical enclosures where the original key has been lost. Maintenance teams and facility engineers can use it to restore secure access without replacing the entire lock assembly. The item ships new and ready for immediate installation.

Verify Lock Cylinder Marking

Before ordering, confirm that the existing lock cylinder is stamped with the manufacturer number H661 and that the operator barrel measures 30 mm. The key is cut specifically for that cylinder profile and will not operate other Eaton lock codes or different barrel diameters. Cross-referencing the equipment documentation or the physical marking on the lock face avoids a mismatch that would leave the enclosure locked. No electrical compatibility checks are required for this purely mechanical part.

Consistent Mechanical Operation

Under repeated daily use the key maintains reliable engagement because it is machined to the original H661 tolerances rather than copied from a worn original. The brass construction resists deformation when turned in stiff or weather-exposed cylinders, so torque feel stays consistent over long service intervals. There are no electronic components to degrade, and the cut depth does not change with temperature cycling in industrial environments.