SK3243.900 Rittal Blue e+ EC fan-and-filter unit 625 m³/h, 100 V-240 V, RAL 7035

Why Choose the Rittal SK 3243.900 Blue e+ Filter Fan?

The Rittal SK 3243.900 is a compact and energy-efficient Blue e+ EC filter fan unit designed to deliver reliable enclosure cooling for industrial control panels and IT systems. Built with advanced EC motor technology, it provides intelligent airflow control, reduced energy consumption and enhanced operational reliability.

This model features a wide-range input of 100–240 V AC, allowing global use across different power systems. Its integrated smart interfaces enable monitoring, diagnostics and control, making it ideal for modern Industry 4.0 applications.

With airflow performance ranging from 175 to 1,160 m³/h and a nominal airflow of approximately 625 m³/h with a pleated filter, the SK 3243.900 ensures consistent enclosure ventilation and effective thermal management.

Key Advantages

• Energy-efficient EC filter fan technology for reduced operating costs.
• Wide voltage range (100–240 V AC) for worldwide deployment.
• Airflow up to 1,160 m³/h for flexible cooling performance.
• Integrated IoT connectivity and monitoring features.
• Stable airflow via diagonal fan design.
• Tool-free installation and simplified maintenance.

Key Features

• Rittal Blue e+ fan-and-filter unit.
• Advanced electronically commutated (EC) motor.
• Supplied with pleated filter for improved airflow efficiency.
• 0–10 V / PWM input and ModBus (RS485) interface.
• Automatic filter monitoring and maintenance indication.
• Optimised louvre design for airflow and enclosure protection.
• Quick filter replacement via front-access mechanism.

Technical Specifications

• Manufacturer: Rittal
• Series: Blue e+
• Model: SK 3243.900
• Product type: EC filter fan unit
• Airflow (free blowing with pleated filter): approx. 625 m³/h
• Airflow range: 175 – 1,160 m³/h
• Voltage: 100–240 V AC, single phase
• Frequency: 50 / 60 Hz
• Power consumption: approx. 55.1 W
• Current: approx. 0.88 A
• Protection rating: IP54–IP56 depending on configuration
• Dimensions (W × H × D): 323 × 323 × 156.5 mm
• Installation depth: approx. 136.5 mm
• Operating temperature: -25 °C to +55 °C
• Noise level: approx. 65 dB(A)
• Weight: approx. 3.65 kg

Efficient Cooling with Intelligent Control

The SK 3243.900 uses diagonal fan technology to achieve even airflow distribution throughout the enclosure, reducing hotspots and improving thermal performance. Its EC motor adapts to operating conditions, delivering energy-efficient cooling while maintaining stable performance.

The integrated pleated filter enhances airflow while preventing dust ingress, helping to maintain clean internal conditions and reduce maintenance requirements in industrial environments.

Typical Applications

• Industrial control panels and automation systems.
• Electrical enclosures and switchgear cabinets.
• Data cabinets and IT infrastructure.
• Manufacturing and processing environments.
• Telecommunications equipment enclosures.
• Energy and power distribution systems.

Trusted by Engineers Worldwide

Rittal Blue e+ filter fan units are widely trusted for delivering energy-efficient, intelligent and high-performance enclosure cooling across industrial and IT applications.