Rittal 3171.100 replacement filter pad for SK 3239, fiber, grey, air cooling

The Rittal 3171.100 replacement filter mat is made of a chopped-fibre mat with a progressive structure designed for use in computer cooling systems and ventilation units. One side of the mat has an open structure for the dust-laden air intake while the clean-air side is closed to retain captured particles. The material is temperature-resistant up to 100°C and meets the self-extinguishing category F1 according to DIN 53 438. The filter reliably captures the majority of dust particles from approximately 10 µm and larger.

Advantages

The chopped-fibre progressive structure provides a balance of airflow and filtration efficiency, allowing effective dust capture while maintaining air circulation. Temperature resistance to 100°C and F1 self-extinguishing classification increase operational safety in electronic enclosures. The dual-structure design—open on the dust side and closed on the clean side—helps prolong equipment life by reducing particulate ingress into sensitive components.

Suitable for

• Filtration in computer cooling systems and electrical enclosures
• Replacement filter mat for compatible Rittal filter housings such as SK 3239
• Environments where removal of coarse to medium dust (from ~10 µm) is required

When it may not be suitable

This filter mat is designed for capturing particles from about 10 µm and larger; it is not intended for fine particulate or HEPA-level filtration. It may not be appropriate where removal of submicron particles, gases, vapours, or chemical contaminants is required. For systems needing higher filtration class or specialized media, choose a filter specified for those applications.

Key specifications

• Material: chopped-fibre mat
• Structure: progressive, open side (dust-laden air) / closed side (clean air)
• Temperature resistance: up to 100°C
• Fire performance: self-extinguishing category F1 (DIN 53 438)
• Effective particle capture: from approximately 10 µm
• Colour: grey
• Dimensions (approx.): 173 mm × 173 mm × 17 mm (W × H × D)
• Intended cooling agent: air

How to use

Install the filter mat with the open-structured side facing the incoming dust-laden airflow and the closed side toward the clean-air area. Ensure the mat fits securely in the filter housing to avoid bypass of unfiltered air. Replace the mat at regular maintenance intervals or sooner if visible clogging significantly reduces airflow or increases operating temperature of the enclosure.

What to consider before purchase

• Confirm physical dimensions and compatibility with your filter housing (e.g., SK 3239 compatible housings)
• Assess required filtration level—this mat filters from ~10 µm; not a substitute for HEPA or gas/vapour filters
• Check expected operating temperature to ensure it stays within the 100°C limit
• Plan replacement frequency based on dust load and airflow requirements

Usage recommendations

For best performance, fit the Rittal replacement filter mat with correct orientation (open side to dust intake), inspect periodically for clogging, and replace when pressure drop or reduced cooling performance is observed. Use in combination with routine enclosure maintenance to prolong equipment life.