The SITAS 4AM4342-8JD40-0FA0 is a 315VA single-phase control transformer with the widest primary tap range in the 4AM4342 series — six taps from 415V down to 215V — delivering 230V at 1.37A. This one model covers most global mains voltages, simplifying inventory for international machine builders.

Electrical Performance

The EI 105/60 laminated core achieves approximately 90 percent efficiency with a short-time power rating of 1,120VA (S6 duty). The six-tap primary handles a wide range of international grid voltages without requiring separate transformer models. Dual 115V secondary windings can be series-connected for 230V or parallel-connected for 115V. Full galvanic isolation via II0 vector group.

Mechanical Design

Compact 107x111x120mm IP00 open-frame design with screw terminals and screw mounting. Class B (130 C) insulation, rated for 40 C ambient operation.

Application

Ideal for OEM machine builders exporting to multiple regions — the six-tap primary covers European 400V, UK 415V, and various 200-240V grids in a single part number. Also suits retrofits where the exact mains voltage may vary.

Decision Parameters