Controlled by an analogue signal which is selectable for DC current or voltage. A ‘5 volts user’ voltage enables local control by a potentiometer. Standard 45mm DIN window format allows mounting in a housing with a panel cut-out or DIN Rail mounting in a cabinet.

These thyristors can withstand momentary over currents up to 15 times the nominal rating – important when controlling short-wave infrared elements. The thyristor breakdown voltage is three times greater than the nominal operating voltage.