Product information
Overview
Key Features
- Wide-range input supply: Rated input values are 120 V DC, 230 V DC, 120 V AC, and 230 V AC.
- Backplane bus output: The 5 V DC backplane bus output supports up to 20 A with no base load required; the 24 V DC output supports up to 1 A and is idling-proof.
- Input frequency range: Rated line frequency is 50 Hz or 60 Hz, with a permissible range from 47 Hz to 63 Hz.
- Mains buffering: Stored energy time during mains or voltage failure is 20 ms; mains buffering is according to NAMUR recommendation.
- Hardware configuration and protection: The power supply requires 2 slots, provides primary/secondary potential separation, has equipment protection class I with protective conductor, and includes short-circuit protection.
Technical Summary
| Product | SIMATIC S7-400 PS407 power supply |
|---|---|
| Input voltage | 120 V AC/DC or 230 V AC/DC |
| Output voltage | 5 V DC and 24 V DC |
| Backplane bus current, max. | 20 A at 5 V DC; 1 A at 24 V DC |
| Line frequency | 50 Hz or 60 Hz; permissible range 47 Hz to 63 Hz |
| Mains failure stored energy time | 20 ms |
| Required slots | 2 |
| Potential separation | Primary/secondary: Yes |
| Protection | Short-circuit protection: Yes; equipment protection class I with protective conductor |
| Active power input, typ. | 158 W |
| Power loss, typ. | 35 W |
| Backup battery, optional | 1x lithium AA; 3.6 V / 2.2 Ah |
Frequently Asked Questions
What input voltages does Siemens 6ES7407-0RA02-0AA0 support?
It has rated input values of 120 V AC, 230 V AC, 120 V DC, and 230 V DC.
What output current does the PS407 provide?
The 5 V DC backplane bus output provides up to 20 A with no base load required. The 24 V DC output provides up to 1 A and is idling-proof.
How many slots does this PS407 power supply require?
It requires 2 slots.
Does the power supply include a backup battery?
A backup battery is optional: 1x lithium AA, 3.6 V / 2.2 Ah.
