Product Overview:
The SIEMENS SIMATIC S5 6ES5 951-7NB21 is a robust and essential Power Supply Module, specifically designed for the reliable operation of Siemens SIMATIC S5-155U, S5-155H, and S5-155R Programmable Logic Controller (PLC) systems. As a critical component, the PS 951 module ensures a stable and consistent power supply to the entire S5 rack, including the CPU, communication processors, and I/O modules, thereby guaranteeing the uninterrupted performance of industrial automation processes. Engineered for demanding industrial environments, this module provides the necessary DC voltages, typically 5V DC for the internal backplane bus and often 24V DC for external peripherals or specific modules, making it indispensable for maintaining the integrity and efficiency of your legacy S5 automation infrastructure. Its proven reliability and durable construction make it an ideal choice for replacement parts or maintaining existing S5 installations in manufacturing, process control, and various industrial applications.
Technical Specifications:
- Part Number: 6ES5 951-7NB21
- Alternate Part Number: 6ES59517NB21
- Product Type: Power Supply Module
- Series: SIMATIC S5 PS 951
- Compatibility: Siemens SIMATIC S5-155U, S5-155H, S5-155R PLC Systems
- Input Voltage: Typically AC 120/230V, 50/60 Hz (specific range may vary by model variant)
- Output Voltage: DC 5V (for backplane bus), DC 24V (for external loads/modules)
- Output Current: Varies by specific load requirements, designed for S5-155 systems
- Power Consumption: Dependent on connected load, typically up to 150W
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -25°C to 70°C (-13°F to 158°F)
- Protection Class: IP20
- Mounting Type: Rack Mounting (within SIMATIC S5-155 rack)
- Weight: Approximately 1.5 kg (3.3 lbs)
- Dimensions (HxWxD): Standard SIMATIC S5 module dimensions, typically around 290mm x 50mm x 210mm (11.42in x 1.97in x 8.27in)
SIEMENS 6ES5-951-7NB21
1-Year Warranty on Purchased Parts
All products sold by Roc Industrial LLC are covered by a limited warranty for a period of one year from the date of purchase, unless otherwise stated. This warranty covers defects in material and workmanship and does not cover damage caused by misuse, abuse, neglect, or unauthorized repair. Click Here to learn more.
Return and Refund Policy
Returns are accepted within 30 days of purchase for a full refund or exchange. Customer is responsible for return shipping costs.Quick & Convenient Shipping Solutions
Ensuring rapid shipping, all domestic orders are processed within 1 business day with free standard delivery and optional overnight shipping available; international orders are efficiently handled with competitive shipping costs, though customs and taxes are the customer's responsibility. For specific shipping needs or assistance, feel free to contact us.
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