Spring-and-cable assembly — stainless-steel spring provides high-speed elongation of arc within refill unit when fuse operates
SM Refill Unit — replaced after fault-clearing operation
Bronze pull-ring pivots to pry up latch
Porcelain-jacketed glass-epoxy sleeve
Silver-surfaced upper and lower ferrules
Clamping nut — locks refill unit in place
Gravity-operated rain shield
Lifting eye