U-1957: Germany
Insulator: 5 5/8" - 4 7/8" X 4 1/2" (142mm - 124mm X 114mm) Height of insulator + assembly: 5 1/8" (130mm)
(top incuse) {side view of insulator}
Picture courtesy Bob Berry |
Insulator: 5 5/8" - 4 7/8" X 4 1/2" (142mm - 124mm X 114mm) Height of insulator + assembly: 5 1/8" (130mm)
(top incuse) {front view of insulator}
Picture courtesy Bob Berry |
This is a cut-out insulator. A metal bar would connect below the two terminals and be opened like a switch.
This insulator is made from four porcelain pieces and it is likely that the insulator body may also be found without the additional hardware.
U number assignment by Bob Berry May 2016.