Connecting up5.1 Safety when connecting upSCALANCE S615Operating Instructions, 10/2022, C79000-G8976-C389-07 47NOTICESuitable fuse for the power supply cables (corresponds to "Limited Energy")The current on the terminal may not exceed 3 A. Use a fuse for the power supply that issuitable for protection of AC/DC power supply circuits *) and protects against currents > 3 A.• In areas subject to the NEC or CEC, the fuse must meet the following requirements:– Suitable for AC/DC *) (min. 60 V / 3 A)– Breaking current at least 10 kA– Approval according to ANSI/UL 248-14 (suppl. fuses), ANSI/UL 248-4 (Class CC),ANSI/UL 248-8 (J), ANSI/UL 248-15 (T), or CSA C22.2-4 No. 248.14 (suppl. fuses), No.248-4 (Class CC), No. 248-8 (J), No. 248-15 (T)• In other areas, the fuse must meet the following requirements:– Suitable for AC/DC *) (min. 60 V / 3 A)– Breaking current at least 10 kA– Approval according to IEC/EN 60947-1/2/3 or IEC/EN 60898-1/2 for circuit breakers– Breaking characteristics: B or C– Approval according to IEC/EN 60127-1 for fuses– Breaking characteristics: max. 120 s at 2 x In (corresponds to melting integral I 2 t <4320)If the properties of the supplying current source are known, the following fuse is alsopossible:• In areas subject to the NEC or CEC, the fuse must meet the following requirements:– Suitable for AC/DC *) (min. 60 V / 3 A)– Breaking current > highest possible current of the current source (incl. short circuitcurrent and fault)– Approval according to UL 1077 or CSA C22.2 No. 235• In other areas, the fuse must meet the following requirements:– Suitable for AC/DC *) (min. 60 V / 3 A)– Breaking current > highest possible current of the current source (incl. short circuitcurrent and fault)– Approval according to IEC/EN 60934– Breaking characteristics: max. 120s at 2 x In*) AC or DC depending on availability