Siemens 6XG3408-1AA26 Fan Subassembly

Why This Fan Subassembly Keeps Your System Cool

This fan subassembly provides forced air circulation for SIMATIC S5 racks. You get a reliable Siemens 6XG3408-1AA26 for maintaining safe operating temperatures. It mounts directly below the rack to draw heat away from modules. Therefore, your system avoids thermal shutdown and extends component lifespan.

Technical Specifications and Physical Details

The Siemens 6XG3408-1AA26 features one axial fan with a protective metal grille. It operates on 230V AC power at 50 or 60 Hz. This subassembly measures approximately 250 mm in width and 120 mm in height. The unit weighs around 0.90 kg for secure installation. 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	6XG3408-1AA26
Product Type	Fan Subassembly
Brand	Siemens
Family	SIMATIC S5
Fan Type	Single axial fan
Operating Voltage	230V AC
Frequency	50 / 60 Hz
Protection	Metal grille
Mounting Type	Under-rack mounting
Dimensions (W x H)	Approx. 250 x 120 mm
Approx. Weight	0.90 kg
Energy Storage	None (direct AC powered)
Component Count	Fan unit with mounting frame

Installation and Usage Notes

This subassembly mounts directly beneath your S5 rack using four screws. You must connect the power leads to a dedicated circuit breaker. The Siemens 6XG3408-1AA26 requires unobstructed intake and exhaust paths. Therefore, leave at least 50 mm of clearance on both sides. Always clean the fan grille every three months. Dust buildup will reduce airflow and cause overheating.