Product Overview
Technical Summary
| Parameter | Value |
|---|---|
| Module type | PS405 power supply |
| Input voltage | 24 V DC, 48 V DC, or 60 V DC |
| Backplane bus output | 5 V DC, max. 20 A |
| 24 V DC output | Max. 1 A; idling-proof |
| Rated input current | 7 A at 24 V DC; 3.2 A at 48 V DC; 2.5 A at 60 V DC |
| Active power input, typ. | 168 W |
| Power loss, typ. | 44 W |
| Required slots | 2 |
| Mains/voltage failure stored energy time | 20 ms |
| Potential separation | Primary/secondary: Yes |
| Short-circuit protection | Yes |
| Equipment protection class | I, with protective conductor |
Applications
- SIMATIC S7-400 power supply: Provides 5 V DC power for the backplane bus of a SIMATIC S7-400 system.
Key Features
- PS405 power supply: SIMATIC S7-400 power supply with 24 V DC, 48 V DC, or 60 V DC rated input.
- 5 V DC output: Backplane bus output: 5 V DC, up to 20 A; no base load is required.
- 24 V DC output: Backplane bus output: 24 V DC, up to 1 A; idling-proof.
- Input current: Rated input current is 7 A at 24 V DC, 3.2 A at 48 V DC, and 2.5 A at 60 V DC.
- Protection and separation: Short-circuit protection is provided, with primary/secondary potential separation and equipment protection class I with protective conductor.
- Installation and buffering: The power supply requires 2 slots and provides 20 ms stored energy time during mains or voltage failure; mains buffering follows the NAMUR recommendation.
Frequently Asked Questions
1. What input voltages does the 6ES7405-0RA02-0AA0 support?
It supports 24 V DC, 48 V DC, and 60 V DC rated input.
2. What backplane bus output does this PS405 provide?
It provides 5 V DC for the backplane bus, up to 20 A, with no base load required.
3. How many slots does the power supply require?
The power supply requires 2 slots.
