Mersen L227986

The NH fuse-link aM is part of a plug-in fuse system designed for use in motor circuit protection. This specific model, rated at 500A and 690VAC, is engineered for partial-range breaking capacity, effectively limiting current and minimizing power losses. It is capable of interrupting currents up to 6.3 times the nominal current, making it suitable for short-circuit protection. However, it must be paired with additional switchgear to guard against overload conditions.

This fuse-link is manufactured with a ceramic body insulating material and features silver-plated copper connection terminals, ensuring reliable operation. The mounting method is via a clip, and it is classified under the NH3 fuse size. As per its design, the fuse-link should be handled by qualified personnel due to the inability to guarantee non-interchangeability of rated current. The Designation Code applicable to this fuse-link is NH fuse-links aM 690VAC.