6ES7090-0XX84-0AB0 SIEMENS

6ES7090-0XX84-0AB0 Siemens Basis unit

Brand：SIEMENS Model number：6ES7090-0XX84-0AB0

Country of origin: Germany Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

The 6ES7090-0XX84-0AB0 is engineered to seal off unused module slots on backplanes and rack assemblies. In industrial control cabinets, leaving open slots on an active subrack exposes the internal backplane connectors to environmental contaminants and disrupts the engineered cooling airflow. This blanking plate snap-fits or secures directly over unused slots, serving as a protective shield against dust, airborne debris, and metallic particles, while ensuring that the enclosure maintains proper air circulation dynamics across populated active modules.

Product Parameters

Product Type: Blanking Cover / Slot Cover Plate
Compatibility: Siemens SIMATIC S7 racks and modular subrack enclosures
Material: Durable, industrial-grade flame-retardant polymer
Mounting Mechanism: Snap-in or screw-retained retaining structure for tool-less or quick manual installation
Operating Temperature: $-25\text{°C}$ to $60\text{°C}$ ( $-13\text{°F}$ to $140\text{°F}$ )
Storage Temperature: $-40\text{°C}$ to $70\text{°C}$ ( $-40\text{°F}$ to $158\text{°F}$ )
Relative Humidity: 5% to 95% non-condensing
Protection Function: IP20-level front protection against direct contact and solid foreign objects when properly installed

Product Advantages

Environmental Protection: Prevents dust, moisture droplets, and conductive metallic particles from settling onto sensitive backplane contacts and adjacent active circuitry.
Thermal Management Optimization: Ensures designed cooling airflow pathways within the rack cabinet are maintained, preventing fan forced air from bypassing active heat-generating modules through open slots.
Safety and Touch Protection: Covers high-density backplane pin connectors, protecting maintenance personnel from accidental contact and static discharge (ESD) during routine cabinet operations.
Professional Cabinet Aesthetics: Provides a clean, finished appearance for control panels with reserved expansion slots.
Durable Construction: Made from high-quality industrial materials resistant to thermal degradation and harsh factory environmental conditions.

Important Considerations and Precautions

Proper Fit Alignment: Ensure the cover plate is correctly aligned with the guide rails of the target slot before applying pressure to engage retaining clips to avoid breaking plastic mounting tabs.
De-energization Standard: Although the cover is a passive mechanical component, always observe proper electrical safety protocols when working near exposed backplanes inside active control cabinets.
Thermal Inspection: Never leave open empty slots uncovered in high-density or high-temperature control racks, as bypassing forced air cooling can lead to premature thermal tripping or failure of neighboring active modules.
Expansion Removal: Keep removed slot covers in a safe location during system expansion so they can be reused if modules are later removed or relocated.

Product Applications

The Siemens 6ES7090-0XX84-0AB0 cover plate is utilized across various industrial automation environments where modular racks are deployed with future expansion capacity in mind.

Factory Automation Control Panels: Sealing reserved expansion slots in SIMATIC S7 PLC rack enclosures across assembly lines and manufacturing plants.
Process Automation Systems: Protecting subracks in chemical, water treatment, and energy management control centers where clean air management is mandatory.
Power Distribution and Drive Cabinets: Maintaining proper airflow distribution inside drive racks and auxiliary control sections containing spare slots.
Modular Machine OEM Equipment: Pre-building modular control cabinets with open slots ready for field upgrades without compromising shipping or operational enclosure protection.

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