POWER SUPPLY, PHASES:3, PN(KW):0.6, UPRI(V):400+/-20, USEC(V DC):24, ISEC(A DC):25, F(HZ):50...60, SWITCHING SIZE/SHIELDING:YY0 /0, PROTECTION CLASS:I, TA/ISOCL:40 /B, W(%):5, IP00, CONNECTION:SCREW CONNECTION, MOUNTING:4AV51_0_, EN 61558, EN61131-2 >SAFETY TRANSFORMER< The 4AV power supplies deliver an unregulated direct voltage of 24 V DC based on single-phase or three-phase safety transformers with downstream rectifiers and capacitor filtering in accordance with EN61131-2.