The SITAS 4AM6442-5AT10-0FD0 is a 1500VA single-phase control transformer within the 4AM6442 platform, stepping 400V down to 230V at 6.52A. The -0FD0 variant fills the gap between the 1600VA (4AM6142) and 2000VA (4AM6442) ratings, offering the larger EI 174/102 core platform at a reduced power rating for panels that need more than 1600VA but not the full 2000VA.

Electrical Performance

Rated at 1,500VA continuous with a short-time power rating of approximately 7,300VA (S6 duty). The EI 174/102 laminated core achieves approximately 96 percent efficiency. Primary taps at 380/400/420V (±5 percent). Full galvanic isolation via II0 vector group.

Mechanical Design

Shares the 158x176x164mm IP00 open-frame 4AM6442 chassis with screw terminals and screw mounting. Class B (130 C) insulation system, rated for 40 C ambient. Weighs approximately 22 kg — slightly lighter than the 2000VA variants due to reduced copper content.

Application

Suits European industrial control panels where 1500VA is the right size — more than 1600VA-series models but full 2000VA would be oversizing. Common in mid-to-large machine tool, packaging, and material handling control systems where 400V building supply feeds 230V control circuits.

Decision Parameters