The SITAS 4AM5542-8ED40-0FA0 is an 800VA single-phase control transformer with a high-range multi-tap primary (575/550/525V) stepping down to 230V at 3.48A. With the substantial EI 150/65 core, it handles larger control circuits on high-line voltage networks up to 575V.

Electrical Performance

Rated at 800VA continuous with an impressive short-time power rating of 3,400VA (S6 duty) — over 4x headroom for high-inrush loads. The EI 150/65 laminated core achieves approximately 93 percent efficiency. Full galvanic isolation via II0 vector group. 50/60Hz operation.

Mechanical Design

The larger 152x144x126mm IP00 open-frame design reflects the increased core size and power capacity. Screw terminals and screw mounting. Class B (130 C) insulation, rated for 40 C ambient. Weighs approximately 13.2 kg.

Application

Designed for larger industrial control panels, multi-motor control centers, and process automation systems where 230V control circuits must be powered from high-line voltage mains up to 575V, such as Canadian heavy-industrial installations.

Decision Parameters