Electrical disconnect method and apparatus

A disconnect apparatus by which a cryogenic inductor can be both thermally and electrically isolated from a workload and a generator. The disconnect apparatus includes an input disconnect and an output disconnect. The input and output disconnects, when opened, thermally and electrically isolate the inductor, thereby enabling the inductor to more efficiently be cryogenically cooled. This represents a great savings in cryogenic coolant. The input and output disconnects can be simultaneously or sequentially actuated into the connected and disconnected configuration. Provision is made by which a thermal barrier can be interposed between the switch contacts of the input disconnect leading to the inductor and, the output disconnect can be evacuated to reduce heat transfer respective to the load.