Overview of Siemens 6ES5 951-7LD21
Order genuine Siemens 6ES5 951-7LD21 directly from LeadTime.ca for your automation system. The Siemens 6ES5 951-7LD21 is a SIMATIC S5 power supply unit specifically designed for integration into legacy industrial control systems. Engineered for reliability and robust performance, this unit delivers a stable 5 V DC output for powering S5-115U/H PLCs—crucial for maintaining uptime in demanding factory environments. Buy Siemens 6ES5 951-7LD21 online to ensure critical backup and uninterrupted operation for your automation infrastructure. With worldwide delivery and factory-grade quality, this product is a trusted choice for S5 system upgrades and replacements.
Key Features of Siemens 6ES5 951-7LD21
- Compatible with Siemens S5-115U/H programmable logic controllers
- Input: 120/230 V AC, dual-voltage operation
- Output: 5 V DC at 7 A or 15 A, adjustable for system requirements
- No backup battery functionality, optimized for straightforward installation
- Robust construction for reliable industrial use
- Factory refurbished options available for cost-effective operation
- Suitable for upgrading or replacing aging S5 series components
- Compact design for space-saving panel installation
- Siemens-certified quality with original packaging
- Widely used in automation retrofitting and maintenance projects
Technical Specs of 6ES5 951-7LD21
Review Siemens 6ES5 951-7LD21 specifications for detailed parameters before installation. The following table summarizes the core technical data:
| Feature |
Value |
| Input Voltage |
120/230 V AC |
| Output Voltage |
5 V DC |
| Output Current |
7 A / 15 A |
| Compatibility |
S5-115U/H (without backup battery) |
| Weight |
Approx. 1.84 kg |
For the complete datasheet and manual, consult your automation supplier or Siemens resources for full integration details.
Applications / Use Case
This Siemens 6ES5 951-7LD21 is commonly used in industrial automation and process control applications worldwide. It is ideal for providing reliable DC power to S5-115U/H systems in manufacturing facilities, production lines, legacy machine automation, and factory control panels. Whether you need a direct replacement, system upgrade, or backup power module, the 6ES5 951-7LD21 ensures stable operation for critical automation processes, keeping your shop floor running smoothly.
Price & Availability
See Siemens 6ES5 951-7LD21 price and stock status online through LeadTime.ca for fast worldwide dispatch. Contact us for bulk order pricing and real-time availability updates.
Why Order from LeadTime.ca
All products on LeadTime.ca are genuine OEM, sourced from verified suppliers, and available for worldwide shipping. Add to cart and checkout securely for reliable delivery and peace of mind on every industrial automation purchase.
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