SIEMENS 6ES5 981-0HA11

Siemens SIMATIC S5 Fan Unit for S5-115U Racks

Description

This is the Siemens 6ES5 981-0HA11, a fan subrack designed for the SIMATIC S5-115U programmable logic controller system. It is a critical component for maintaining optimal operating temperatures in industrial enclosures, providing forced air circulation to prevent PLC modules from overheating. This unit is essential for ensuring the reliability and longevity of legacy S5 automation systems.

Specifications

• Manufacturer: Siemens
• Product Line: SIMATIC S5
• Model: 6ES5 981-0HA11
• Product Type: Fan Unit (Luefterzeile)
• Input Voltage: Selectable 115V AC or 230V AC
• Compatibility: Designed for S5-115U PLC racks

Label Info

• Brand: SIEMENS
• Part Number: 6 ES 5 981-0 HA 11

Application

Specifically used for cooling modules within Siemens SIMATIC S5-115U expansion racks like the ER 701-2 and ER 701-3, commonly found in manufacturing, process control, and other industrial automation applications from its era.

Country of Origin

Made in Germany.

CO2 Impact

Opting for this pre-owned fan unit instead of a new alternative prevents the emission of approximately 40 kg of CO2. This saving is equivalent to the CO2 absorbed by two mature trees in a year.

Availability

This product is an obsolete but available spare part. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?
What PLC racks is the 6ES5 981-0HA11 compatible with?

Answer

This fan unit is specifically designed for the Siemens SIMATIC S5-115U PLC system, typically mounting onto the ER 701-2 and ER 701-3 expansion racks to ensure proper cooling.

Question?
How do I switch the operating voltage between 115V AC and 230V AC?

Answer

The voltage is selected via a small, clearly marked switch on the front label of the unit. Ensure the system is powered down before changing the voltage setting to prevent damage.

Question?
Are the air filters on this unit replaceable?

Answer

Yes, the foam air filters located at the rear of the unit are designed to be removable for cleaning or replacement. Regular maintenance of the filters is crucial for maintaining effective airflow and cooling performance.

Last Update: Friday, March 13, 2026

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