Siemens 6ES7408-1TB00-0XA0 Fan Subassembly for 18-Slot S7-400 Rack
The Siemens 6ES7408-1TB00-0XA0 fan subassembly provides critical thermal management for SIMATIC S7-400 PLC systems. Specifically engineered for 18-slot subracks with 120/230V AC power supply, this component ensures optimal operating temperatures in demanding industrial environments. By maintaining consistent cooling efficiency, it significantly extends equipment lifespan and prevents overheating-related system failures in automation applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model Number | 6ES7408-1TB00-0XA0 |
| Voltage Rating | 120/230V AC |
| Compatibility | S7-400 Series |
| Slot Capacity | 18-slot subracks |


Industrial Applications
This fan subassembly is essential for maintaining operational integrity in S7-400 PLC systems deployed across manufacturing plants, power generation facilities, and process automation environments. It directly interfaces with Siemens UR2/UR2-H subracks (6ES7400-2JA00-0AA0) and complements PS 407/PS 407H power supply units. Critical for applications requiring continuous operation in temperature-variable settings including automotive production lines, chemical processing units, and material handling systems.
About Vertex Industrial
Vertex Industrial specializes in global sourcing of industrial automation components, including liquidated new surplus and professionally refurbished Siemens equipment. Our technical team provides comprehensive pre-sales consultation and post-installation support, backed by a 1-year performance warranty on all components. Can’t locate your required model? Email our specialists for custom sourcing solutions.
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