The SITAS 4AM3242-5AT10-0FA2 is a variant of the 63VA 400V→230V control transformer in the SITAS 4AM series. It shares identical core electrical specifications with the 4AM3242-5AT10-0FA0: 400V ±5% tapped primary (380/400/420V), 230V secondary at 0.27A, 63VA continuous rating with 190VA short-time (S6) surge capacity, 85% efficiency, and the same EI 84/28 laminated core platform.

Understanding the 0FA2 Suffix

Siemens uses suffix variations in the 4AM part numbering scheme to differentiate terminal configurations, approval combinations, or regional variants while keeping the electrical design unchanged. The 0FA2 designation reflects a specific ordering configuration — consult the official Siemens SITAS catalog for the exact terminal and approval specification associated with this suffix. Electrically, the transformer performs identically to the 0FA0 variant: safety isolating per EN 61558-2-2 and EN 61558-2-6, II0 vector group, 50/60Hz operation, thermal class B, IP00 for in-cabinet mounting.

Key Decision Parameters

For the standard 0FA0 suffix, see the 4AM3242-5AT10-0FA0. Consult the Siemens SITAS catalog or Industry Mall for the exact difference between 0FA0 and 0FA2 suffix configurations.