| | SIMATIC S7-400, PS 405 POWER SUPPLY, WIDE RANGE 20A, 24/48/60V DC, 5V/20A DC |
| |
| Supply voltage |
| Rated value, 24 V DC | Yes |
| Rated value, 48 V DC | Yes |
| Rated value, 60 V DC | Yes |
| permissible range, lower limit (DC) | Static 19.2 V, dynamic 18.5 V |
| permissible range, upper limit (DC) | Static 72 V, dynamic 75.5 V |
| Mains buffering |
| Mains/voltage failure stored energy time | 20 ms |
| Mains buffering according to NAMUR recommendation | Yes |
| Input current |
| Rated value at 24 V DC | 7.3 A |
| Rated value at 48 V DC | 3.45 A |
| Rated value at 60 V DC | 2.75 A |
| Inrush current, max. | 56 A; Full width at half maximum 1.5 ms |
| Output voltage |
| Rated value, 5 V DC | Yes |
| Rated value, 24 V DC | Yes |
| Output current |
| for backplane bus (5 V DC), max. | 20 A; 200 mA base load required |
| for backplane bus (24 V DC), max. | 1 A; idling-proof |
| Short-circuit protection | Yes |
| Power |
| Power consumption, typ. | 175 W |
| Power losses |
| Power loss, typ. | 51 W |
| Backup battery |
| Backup battery | |
| Backup battery (optional) | Yes; 2 x lithium AA; 3.6 V/1.9 Ah |
| Galvanic isolation |
| primary/secondary | Yes |
| Degree and class of protection |
| Protection class | 1; with protective conductor |
| Standards, approvals, certificates |
| FM approval | Yes; up to 40 °C: T4 |
| Connection method |
| Connecting cables/cross sections | 3 x 1.5 mm2, solid or stranded wire with end sleeve, external diameter 3 to 9 mm |
| Dimensions |
| Width | 75 mm |
| Height | 290 mm |
| Depth | 217 mm |
| Required slots | 3 |
| Weight |
| Weight, approx. | 2200 g |
| Status | Mar 12, 2012 |
