MeloAuto-Trusted PLC & DCS Parts Supplier
Cooling System Maintenance Solution for SIMATIC S5 Racks
The Siemens 6ES5988-3LB11 fan replacement kit provides essential cooling components for S5-135U and S5-155U rack systems. This kit includes a high-performance fan unit that maintains proper airflow for temperature-sensitive electronics. It prevents thermal-related failures by ensuring consistent heat dissipation across the backplane.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES5988-3LB11 |
| Series | SIMATIC S5 |
| Product Type | Fan Replacement Kit |
| Fan Type | Axial fan with ball bearings |
| Airflow Rate | Approx. 60 CFM (cubic feet per minute) |
| Voltage Rating | 230V AC |
| Power Consumption | 25W |
| Speed | 2650 RPM (±10%) |
| Noise Level | 48 dBA (typical) |
| Bearing Type | Ball bearing (long life) |
| Lifespan | Approx. 40,000 hours (at 25°C) |
| Protection Rating | IP20 |
| Connection | Pre-terminated cables with plug connectors |
| Included Components | Fan unit, mounting screws, and connectors |
| Weight | 0.8 kg |
| Dimensions (Fan) | 120 x 120 x 38 mm |
| Operating Temperature | 0°C to 60°C |
Essential Cooling for System Reliability
The Siemens 6ES5988-3LB11 replacement fan maintains proper thermal conditions within S5 racks. This airflow prevents component overheating and extends the service life of CPUs and I/O modules. The ball bearing design ensures reliable operation for approximately 40,000 hours.
Complete Kit for Straightforward Replacement
This kit includes the fan unit, mounting screws, and pre-terminated connectors for quick installation. Users can replace a worn or failed fan without special tools or technical expertise. The plug-and-play design minimizes system downtime during maintenance procedures.
Integrated Thermal Management
The axial fan delivers approximately 60 CFM airflow, sufficient for standard S5 rack configurations. This airflow meets the cooling requirements of fully populated systems. The 230V AC power supply connects directly to the rack’s internal power distribution.
Cost-Effective Maintenance Solution
Replacing the fan prevents costly system failures due to overheating and extends overall rack life. This proactive maintenance approach supports continuous production operations. The kit serves as an essential spare part for long-term system reliability.