The Siemens 6ES5951-7LD21 provides reliable power for the SIMATIC S5-115U/H system. It converts 120/230 V AC input into a stable 5 V DC output with currents of 7 A or 15 A. Although Siemens discontinued this unit on October 1, 2022, it remains essential for maintaining legacy systems.
Key Features
- Dual Voltage Input: Operates on 120/230 V AC for flexibility in installation.
- Stable Output: Provides 5 V DC at 7 A or 15 A for SIMATIC S5 modules.
- Legacy System Support: Ideal for users maintaining older S5-115U/H systems.
- Robust Construction: Designed for long-term industrial use with reliable performance.
- No Direct Replacement: Siemens discontinued this unit; users must rely on existing stock or refurbished units.
Technical Specifications
| Specification | Details |
|---|---|
| Article Number | 6ES5951-7LD21 |
| Product Name | SIMATIC S5 Power Supply 951 (Renovated) |
| For Use With | SIMATIC S5-115U/H |
| Input Voltage | 120/230 V AC |
| Output Voltage | 5 V DC |
| Output Current | 7 A / 15 A |
| Backup Battery | Not Included |
| Product Lifecycle | Discontinued (PLM: PM500) |
| Discontinuation Date | October 1, 2022 |
| Net Weight | 1.919 kg |
| Packaging Dimensions | 21.30 × 32.20 × 7.00 cm |
| Packaging Quantity | 1 unit |
| Country of Origin | Romania |
| RoHS Compliance | Not RoHS-compliant |
| REACH Compliance | Contains Lead > 0.1% (w/w) |
| ECCN / AL | N / N |
| EAN / UPC | 4025515056218 / 662643237382 |
| Commodity Code | 85044082 |
Applications
- Provides stable power for SIMATIC S5-115U/H modules.
- Supports industrial automation systems still operating on legacy hardware.
- Suitable for maintenance, refurbishment, and replacement in older installations.
FAQ
Q1: Can this power supply work on both 120 V and 230 V AC?
Yes, it supports both voltages for flexible industrial installations.
Q2: Is there a replacement for this discontinued unit?
No, Siemens does not offer a direct replacement; refurbished units or existing stock must be used.
Q3: Does it include a backup battery?
No, this power supply does not include a backup battery.
Q4: Is the unit RoHS compliant?
No, it is not RoHS-compliant and contains lead above 0.1% (w/w).
Details
| Weight | 1.919 kg |
|---|---|
| Dimensions | 541 × 818 × 178 mm |
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