TRANSFORMER SITAS, PHASES:1, PN/PN(S6)(KVA):0.25 /0.85, UPRI(V):690+/-5%, USEC(V):230, ISEC(A):1.09, F(HZ):50...60, SWITCHING SIZE/SHIELDING:II0 /0, TA/ISOKL:40 /B, IP00, CONNECTION:SCREW/FLAT PLUG CONNECTION, MOUNTING:SCREWS/DIN RAIL, EN 61558-2-2 >CONTROL TRANSFORMER, ISOLATION TRANSFORMER< The 4AM transformers combine all the properties of single-phase safety, isolating, control or mains transformers. This means that you can master every application with flying colors. The control transformers are also characterized by their short-term performance.