Product Description
Key Features
- SIMATIC S7-400 PS407 identity: Power supply PS407, 20 A, wide range, UC 120/230V, 5 V DC/20 A; order number 6ES7407-0RA02-0AA0.
- Input ratings and frequency: Rated input values: 120 V DC, 230 V DC, 120 V AC, and 230 V AC. Rated line frequency: 50 Hz and 60 Hz; permissible range: 47 Hz to 63 Hz.
- Backplane bus outputs: Output voltage is DC. The 5 V DC backplane bus supports up to 20 A with no base load required; the 24 V DC backplane bus supports up to 1 A and is idling-proof.
- Protection and buffering: Short-circuit protection is present. Mains/voltage failure stored energy time is 20 ms, with mains buffering according to NAMUR recommendation.
- Installation and separation: The hardware configuration requires 2 slots and provides primary/secondary potential separation. Equipment protection class: I, with protective conductor.
- Optional backup battery: An optional backup battery is supported: 1x lithium AA; 3.6 V / 2.2 Ah.
Applications
- SIMATIC S7-400 backplane power supply: Supplies the 5 V DC and 24 V DC backplane buses of a SIMATIC S7-400 configuration.
Technical Summary
| Order number | 6ES7407-0RA02-0AA0 |
|---|---|
| Product lifecycle | Active Product |
| Power supply | PS407, 20 A, wide range, UC 120/230V, 5 V DC/20 A |
| Input ratings | 120 V DC; 230 V DC; 120 V AC; 230 V AC |
| Line frequency | 50 Hz; 60 Hz; permissible range 47 Hz to 63 Hz |
| Backplane bus output, 5 V DC | 20 A max.; no base load required |
| Backplane bus output, 24 V DC | 1 A max.; idling-proof |
| Stored energy time | 20 ms |
| Required slots | 2 |
| Protection | Short-circuit protection; equipment protection class I, with protective conductor |
| Backup battery | Optional; 1x lithium AA; 3.6 V / 2.2 Ah |
Frequently Asked Questions
What order number should be confirmed for this SIMATIC S7-400 power supply?
Confirm order number 6ES7407-0RA02-0AA0.
What input ratings does the PS407 support?
It supports rated inputs of 120 V DC, 230 V DC, 120 V AC, and 230 V AC, with a permissible line-frequency range of 47 Hz to 63 Hz.
What backplane bus current is available?
The 5 V DC backplane bus provides up to 20 A with no base load required, and the 24 V DC backplane bus provides up to 1 A and is idling-proof.
How many slots does the hardware configuration require?
The hardware configuration requires 2 slots.
Is the backup battery included?
It is optional: 1x lithium AA; 3.6 V / 2.2 Ah.
