SK3128.100 Rittal TopTherm air/air heat exchanger Wall-mounted with controller

Why Choose the Rittal SK 3128.100 TopTherm Air/Air Heat Exchanger?

The Rittal SK 3128.100 is a high-performance TopTherm wall-mounted air/air heat exchanger with electronic controller designed for reliable thermal management of industrial electrical enclosures. Its completely separated internal and external air circuits allow heat to be transferred away from sensitive equipment without introducing contaminated ambient air into the enclosure.

This arrangement makes the SK 3128.100 particularly suitable for harsh or aggressive industrial environments where dust, dirt or airborne contaminants make direct ventilation unsuitable. The unit is supplied fully wired and ready for connection, with an integrated electronic controller and digital temperature display for straightforward temperature monitoring and control.

With a specific thermal output of 45 W/K, air throughput of up to 625 m³/h and a 230 V AC single-phase supply, the SK 3128.100 provides effective enclosure cooling for automation, machinery and electrical control applications. The internal air circuit provides IP54 protection, while the wall-mounted housing measures 400 × 950 × 205 mm.

Key Advantages

• High-performance air/air heat exchanger for industrial electrical enclosures.
• 45 W/K specific thermal output for effective heat dissipation.
• Separate internal and external air circuits help protect sensitive equipment from contaminated ambient air.
• IP54 protection for the internal circuit.
• Integrated electronic temperature controller with digital display.
• Air throughput of up to 625 m³/h.
• Floating fault signal contact provides overtemperature indication.
• Fully wired wall-mounted unit supplied ready for connection.

Key Features

• Rittal TopTherm air/air heat exchanger.
• 45 W/K specific thermal output.
• 230 V AC, 1~, 50/60 Hz rated operating voltage.
• Maximum rated current of 0.6 A at 50 Hz and 0.8 A at 60 Hz.
• Internal air throughput of 600 m³/h at 50 Hz and 625 m³/h at 60 Hz.
• External air throughput of 600 m³/h at 50 Hz and 625 m³/h at 60 Hz.
• Electronic temperature control with digital display.
• Factory temperature setting of +35 °C.
• -5 to +55 °C operating temperature range.
• IP54 internal circuit.
• Floating fault signal contact for overtemperature indication.
• Compact wall-mounted design with 205 mm depth.
• RAL 7035 finish.

Reliable Thermal Management for Industrial Enclosures

Air/air heat exchangers remove excess enclosure heat by transferring thermal energy between two completely separate airflow circuits. This allows the enclosure to remain sealed from the surrounding environment while still dissipating heat generated by drives, PLCs, power supplies and other electrical components.

The Rittal SK 3128.100 is particularly effective where ambient air contains dust or other contaminants that should not enter the enclosure. Its electronic controller, digital temperature display and overtemperature fault contact provide convenient monitoring and control, while the IP54 internal circuit helps preserve the protection of installed equipment.

Typical Applications

• Industrial electrical control enclosures.
• Automation and PLC control panels.
• Machine-building electrical cabinets.
• Manufacturing and production machinery.
• Drive and motor-control enclosures.
• Switchgear and power distribution cabinets.
• Industrial environments with dust or contaminated ambient air.
• Applications requiring enclosure cooling with isolated internal and external airflow circuits.