Product Overview
Technical Summary
| Product designation | SIMATIC S7-400, Power supply PS407, 20 A, wide range, UC 120/230V, 5 V DC/20 A |
|---|---|
| Rated input voltage | 120 V DC, 230 V DC, 120 V AC, 230 V AC |
| Line frequency | 50 Hz and 60 Hz; permissible range 47 Hz to 63 Hz |
| Output voltage | 5 V DC and 24 V DC |
| Backplane bus output current, max. | 20 A at 5 V DC; 1 A at 24 V DC |
| Input current, rated | 1.4 A at 120 V AC/DC; 0.7 A at 230 V AC/DC |
| Mains failure stored energy time | 20 ms |
| Required slots | 2 |
| Potential separation | Primary/secondary: Yes |
| Backup battery | Optional; 1x lithium AA; 3.6 V / 2.2 Ah |
| Power loss, typ. | 35 W |
| Product lifecycle | Active Product |
Key Features
- Product designation: SIMATIC S7-400, Power supply PS407, 20 A, wide range, UC 120/230V, 5 V DC/20 A.
- Input voltage: Rated input values are 120 V DC, 230 V DC, 120 V AC, and 230 V AC.
- Line frequency: Rated values are 50 Hz and 60 Hz; the permissible range is 47 Hz to 63 Hz.
- Output current: The backplane bus output is up to 20 A at 5 V DC and up to 1 A at 24 V DC; short-circuit protection is included.
- Mains buffering: Stored energy time during mains or voltage failure is 20 ms, with mains buffering according to NAMUR recommendation.
- Configuration and protection: The power supply requires 2 slots, provides primary/secondary potential separation, and has equipment protection class I with protective conductor.
Frequently Asked Questions
What product does Siemens 6ES7407-0RA02-0AA0 identify?
It identifies a SIMATIC S7-400 PS407 power supply rated at 20 A with wide-range 120/230 V AC or DC input.
Which specifications distinguish this PS407 variant?
It has 5 V DC and 24 V DC outputs, up to 20 A at 5 V DC and 1 A at 24 V DC, and requires 2 slots.
Does the configuration include a backup battery?
The backup battery is optional: 1x lithium AA, 3.6 V / 2.2 Ah.
What should be checked before requesting a quotation?
Check the complete code 6ES7407-0RA02-0AA0, the required quantity, and the destination.
