This is a 3-pole DIN rail mounted midget fuse holder by Edison, designed for 10x38mm cylindrical fuse cartridges, rated at 32A and 690V AC. Each of the three poles has its own hinged cover (with indicator window) that flips open to allow fuse access without tools.
This is a used item.
1 in stock at Habitat for Humanity of the St. Vrain Valley ReStore