The SITAS 4AM4342-5AT10-0FA1 is a 315VA single-phase control transformer converting 400V to 230V at 1.37A with cage-clamp spring-loaded terminals. The 0FA1 variant provides tool-free push-in wiring — reducing panel assembly time and delivering vibration-resistant connections that maintain contact pressure over the product lifetime.

Electrical Performance

Rated at 315VA continuous with a short-time power rating of 1,120VA (S6 duty). The EI 105/60 core achieves approximately 90 percent efficiency. Primary taps at 380/400/420V. Full galvanic isolation via II0 vector group. 50/60Hz operation.

Mechanical Design

Compact 107x111x120mm IP00 open-frame design. The cage-clamp terminals are the key differentiator — enabling push-in wiring without tools and providing consistent contact force regardless of thermal cycling or vibration. Class B (130 C) insulation, rated for 40 C ambient.

Application

Suited for panel builders seeking faster assembly times and for installations subject to vibration — machine tools, packaging machinery, and material handling equipment — where screw terminal connections might degrade over time.

Decision Parameters