Ironclad switchfuse "Invicta" model

Made:
1950-1970 in Birmingham
Ironclad switchfuse Invicta' model, by  Bill Switchgear

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Ironclad switchfuse Invicta' model, by Bill Switchgear
Science Museum Group
© The Board of Trustees of the Science Museum

Ironclad switchfuse "Invicta" model, by Bill Switchgear, Birmingham, 30 amp, 250V. c. 1950 to c.1970

Details

Category:
Electricity Supply
Object Number:
1985-894
Materials:
metal (unknown), metal (ferrous), paint, copper (metal), copper (alloy), ceramic (unspecified), glass, plastic (unidentified) and insulated material
Measurements:
overall: 222 mm x 152 mm x 94 mm, ,
type:
fuse
credit:
Delta Metal Co.