The SITAS 4AM5742-5MT10-0FA0 is a 1,000VA single-phase control transformer stepping 690V down to 230V at 4.35A. Designed for the highest standard industrial distribution voltage — 690V — found in wind turbines, heavy mining equipment, and large-scale process plants.

Electrical Performance

Rated at 1,000VA continuous with a short-time power rating of 5,000VA (S6 duty). The EI 150/90 core achieves approximately 93 percent efficiency. Primary taps at 656/690/725V (plus or minus 5 percent) handle the wide voltage swings common in wind and mining applications. Full galvanic isolation via II0 vector group.

Mechanical Design

Substantial 152x144x132mm IP00 open-frame design with screw terminals and screw mounting. Class B (130 C) insulation. Weighs approximately 15 kg.

Application

Critical for wind turbine nacelle control systems, mining draglines and shovels, and large process industry installations where 690V is the standard motor and distribution voltage. The 230V secondary powers control, safety, and monitoring circuits in these high-power environments.

Decision Parameters