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| Place of Origin: | Germany |
| Brand Name: | Siemens |
| Certification: | COC & COO |
| Model Number: | 6ES5090-8MA01 |
Siemens 6ES5090-8MA01 SIMATIC S5 Compact Unit S5-90U With Enclosed Battery 10DE 24V
The Siemens 6ES5090-8MA01 is a specialized bus connector module designed for use in SIMATIC S5 programmable logic controller (PLC) systems, specifically within central racks such as the S5-115U, S5-135U, and S5-155U series. As a critical passive component in the S5 modular architecture, this bus connector enables reliable electrical and mechanical connection between the backplane bus and individual I/O or function modules, ensuring stable data communication and power distribution across the entire rack.
Although the SIMATIC S5 platform has been largely succeeded by the modern S7 family, thousands of legacy S5 installations remain operational worldwide—in industries such as power generation, water treatment, steel manufacturing, and chemical processing. The 6ES5090-8MA01 continues to play a vital role in maintaining these systems, serving as a replacement or spare part during maintenance, upgrades, or emergency repairs.
Product Overview: Siemens 6ES5090-8MA01
| Manufacturer | Siemens |
| Part Number | 6ES5090-8MA01 |
| Type | S5 Bus Connector (Slot 0 Module) |
| Compatible Racks | UR5211, UR5212, UR5213, CR5211, etc. (S5-115U/135U/155U) |
| Bus Type | S5 U-Bus (Universal Backplane Bus) |
| Module Width | 40 mm (1 standard slot) |
Product images
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