Siemens 6ES5988-7NA11 Fan Exchange Unit

Why This Fan Exchange Unit Replaces Your S5 Cooling Fan

This fan exchange unit provides a direct replacement for worn-out cooling fans. You get a genuine Siemens 6ES5988-7NA11 for SIMATIC S5 racks and power supplies. It matches the original airflow and noise specifications. Therefore, your system maintains proper cooling without any mechanical modifications.

Technical Specifications and Physical Details

The Siemens 6ES5988-7NA11 includes one complete fan assembly with mounting bracket. It operates on 230V AC power at 50 or 60 Hz. This unit connects via a standard two-pin power connector. Its dimensions measure approximately 120 mm in width and 120 mm in height. The unit weighs around 0.55 kg for straightforward replacement. This fan stores no electrical energy whatsoever. Instead, it runs directly from the AC mains supply. Consequently, you need no batteries or capacitors for this component.

Below is the detailed breakdown of the hardware specifications.

Parameter	Specification
Product Model	6ES5988-7NA11
Product Type	Fan Exchange Unit
Brand	Siemens
Family	SIMATIC S5
Fan Type	Axial with mounting bracket
Operating Voltage	230V AC
Frequency	50 / 60 Hz
Connector Type	2-pin power connector
Dimensions (W x H)	Approx. 120 x 120 mm
Approx. Weight	0.55 kg
Energy Storage	None (direct AC powered)
Component Count	Fan assembly with bracket

Installation and Replacement Notes

This unit replaces failed fans in S5 racks and power supplies. You must disconnect mains power before opening the equipment. The Siemens 6ES5988-7NA11 uses the same mounting holes as the original. Therefore, removal takes only a few minutes with a screwdriver. Always check the airflow direction before final tightening. Reverse rotation will not cool your modules properly.