U-1957A: Germany

Insulator: 6 7/8" - 5 1/2" X 7 1/8" (175mm - 140mm X 180mm)

Height of insulator + assembly: 7 7/8" (200mm)

 

(incuse) H

JS760

{side view of insulator}

(Hermsdorf)

 

Picture courtesy Stefan Hounstetter

Insulator: 6 7/8" - 5 1/2" X 7 1/8" (175mm - 140mm X 180mm)

Height of insulator + assembly: 7 7/8" (200mm)

 

(incuse) H

JS760

{side view of insulator}

(Hermsdorf)

 

Picture courtesy Stefan Hounstetter

Insulator: 6 7/8" - 5 1/2" X 7 1/8" (175mm - 140mm X 180mm)

Height of insulator + assembly: 7 7/8" (200mm)

 

(incuse) H

JS760

{side view of insulator}

(Hermsdorf)

 

Picture courtesy Stefan Hounstetter

 

This is a fuse cut-out insulator. A fuse would connect below the two terminals and be opened like a switch.

This insulator is made from two porcelain pieces and it is likely that the insulator body may also be found without the additional hardware.  

U number assignment by Bob Berry December 2023.


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