Our IGBT based SDI1001700 SSR can switch 100 A @ 750 VDC nominal in a fast, reliable and safe way.

In every situation, safety operation is preserved :

Built-in over-voltage protection for inductive DC supply lines,
Built-in load short circuit protection : by detection of IGBT saturation, short circuits on the load will block the unit, keeping it safe,
Built-in over load temperature protection : over-heating should occur, the unit will automatically switch off.
The SDI SSR is definitely designed for the most demanding DC power switching applications, the unit that the railway companies, on rolling stock or infrastructure, have expected for years !