Sifam Tinsley Brass-Ended Shunt, 400 A Max, 75mV Output

75mV Shunts Provide an accurate DC millivolt signal to drive ammeter indicators, overload protection and control devices, especially for higher amperage. They supply a voltage drop proportional to the DC current which is measured.
The current passing through the shunt produces a proportional voltage drop. A moving coil instrument connected to shunt measures the voltage drop across the shunt terminals.

Extension of DC current measuring ranges of moving-coil ammeters
Shunts of 1-25A ranges are fixed on an isolating base
The isolating base is adapted to be assembled on a 35mm DIN rail

Shunts