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6ES5951-7LB21 — Siemens SIMATIC S5 / S7-200 power supply
Discontinued
S5 power supply PS 951, 120/230 V AC input, 5 V 3 A output.
Key specifications
| Input | 120/230 V AC |
|---|---|
| Output | 5 V, 3 A |
What it is and where it's used
The 6ES5951-7LB21 is a Siemens power supply from the SIMATIC S5 / S7-200 range. Typical applications: S5-115U racks. The manufacturer no longer sells this part new, which is why it is sourced from surplus stock elsewhere in Europe.
What to check before ordering
- Confirm the mains voltage setting before powering up
- Check the back-up battery inside the module
- Complete order number with version suffix, and the E-stand (hardware revision) where relevant
- Memory submodule and its contents
If you are unsure, send us a photo of the label on the existing unit with your request and we will check it against the part number.
Condition (new surplus, refurbished or used), warranty and delivery time are confirmed on your quote. Sparesure is independent and not an authorised distributor of Siemens. Independence notice.
Request a quote
We'll come back with price and delivery within 4 working hours. No payment is taken at this stage.
Other parts in the SIMATIC S5 / S7-200 range
| Part number | Type | Status |
|---|---|---|
| 6ES7214-1BD23-0XB0 | CPU | Discontinued |
| 6ES5941-7UB11 | CPU | Discontinued |
| 6ES5945-7UA13 | CPU | Discontinued |
| 6ES5420-4UA13 | I/O module | Discontinued |
| 6ES5441-7LA13 | I/O module | Discontinued |
| 6ES7216-2AD23-0XB0 | CPU | Discontinued |
| 6ES7223-1PL22-0XA8 | I/O module | Discontinued |
| 6ES5420-7LA11 | I/O module | Discontinued |