How does a fused cutout function?
Fused cutouts are used to protect and isolate distribution transformers, electrical apparatus, and primary distribution lines. The hinged portion of the fused cutout is held closed by a replaceable fuse link when no fault is present. When a fault does occur on the transformer or primary, the fuse link melts, allowing the hinged portion to drop open. This isolates and restricts the outage to a small area with visual separation, allowing the open cutout to be easily located.