Key Features
- Power supply for SIMATIC S7-400: PS405 power supply for the SIMATIC S7-400 platform.
- Wide-range DC input: Supports 24/48/60 V DC input.
- Backplane bus output: Provides 5 V DC/10 A for the backplane bus.
- Redundant use: Configured for redundant use.
- Protection and isolation: Includes short-circuit protection, potential separation, and overvoltage category II.
Applications
- SIMATIC S7-400 backplane bus power supply: Supplies 5 V DC power to the backplane bus.
- Redundant power supply use: Supports redundant use in the SIMATIC S7-400 power supply setup.
Technical Summary
| Product type | SIMATIC S7-400 power supply PS405 |
|---|---|
| Rated value (DC) | 60 V DC |
| Output voltage type | DC |
| Backplane bus output current (5 V DC), max. | 10 A; no base load required |
| Backplane bus output current (24 V DC), max. | 1 A; idling-proof |
| Input current at 24 V DC | 4 A |
| Input current at 48 V DC | 2 A |
| Input current at 60 V DC | 1.6 A |
| Mains/voltage failure stored energy time | 20 ms |
| Active power input, typ. | 95 W |
| Power loss, typ. | 20 W |
| Backup battery (optional) | Yes; 2x lithium AA; 3.6 V / 2.2 Ah |
| Required slots | 2 |
| Potential separation | Yes |
| Overvoltage category | II |
| Equipment protection class | I, with protective conductor |
Frequently Asked Questions
What is the Siemens 6ES7405-0KR02-0AA0 used for?
It is a SIMATIC S7-400 PS405 power supply for the backplane bus.
What input voltages does this PS405 power supply support?
24/48/60 V DC.
What output current is available for the backplane bus?
The 5 V DC backplane bus output current is 10 A, with no base load required.
Does the 6ES7405-0KR02-0AA0 support redundant use?
Yes, it is specified for redundant use.
What installation and protection details should be checked before selection?
It requires 2 slots and includes short-circuit protection, potential separation, overvoltage category II, and equipment protection class I with protective conductor.
