SK3375.100 Rittal Air/water heat exchanger Wall-mounted 5 kW 230 V 1~ 50/60 Hz

Why Choose the Rittal SK 3375.100 Wall-Mounted Air/Water Heat Exchanger?

The Rittal SK 3375.100 is a high-capacity wall-mounted air/water heat exchanger designed for dependable cooling of industrial electrical and electronic enclosures. Using water as the cooling medium, it transfers heat from the enclosure's internal air circuit to an external cooling-water system while keeping the internal enclosure air isolated from the surrounding environment.

Designed for harsh industrial conditions, the SK 3375.100 combines a 5 kW cooling output with a compact wall-mounted format and flexible water connection options. The closed-circuit cooling principle is particularly suitable for dusty, contaminated or high-temperature environments where drawing ambient air through the enclosure would be undesirable.

The unit operates from a 230 V AC, single-phase, 50/60 Hz supply and measures 450 × 1400 × 220 mm (W × H × D). With IP55 protection, a broad ambient operating range of 1–70 °C and support for external or full internal mounting, the SK 3375.100 provides a robust cooling solution for demanding machinery and automation installations.

Key Advantages

• High-capacity 5 kW wall-mounted air/water heat exchanger.
• IP55 protection rating supports use in demanding industrial environments.
• Closed internal air circuit helps prevent dust and contaminants from entering the enclosure.
• Suitable for ambient temperatures up to 70 °C.
• Supports external mounting or full internal mounting.
• Flexible water connection options simplify integration with plant cooling systems.
• Basic controller provides automatic temperature regulation.
• Compact 220 mm depth helps reduce installation space.

Key Features

• Rittal wall-mounted air/water heat exchanger.
• 5 kW total cooling output at L35/W10 and 400 l/h.
• 230 V AC, single-phase, 50/60 Hz rated supply.
• 172 W power consumption at both 50 Hz and 60 Hz.
• Maximum rated current of 1.45 A.
• Water-carrying parts manufactured from copper/brass (Cu/CuZn).
• Cooling-water inlet temperature range of 1–30 °C.
• Permissible operating pressure up to 10 bar.
• Basic temperature controller with +35 °C factory setting.
• 100% duty cycle for continuous operation.

High-Capacity Closed-Circuit Cooling for Industrial Enclosures

Air/water heat exchangers such as the Rittal SK 3375.100 remove heat from an enclosure by circulating internal air across a water-cooled heat exchanger. The internal enclosure air remains separated from the ambient environment, allowing sensitive electrical and electronic components to be cooled without introducing dust, dirt or other contaminants.

This cooling principle is particularly effective where a central cooling-water supply is available or where ambient conditions make air-based enclosure cooling unsuitable. The SK 3375.100 combines 5 kW cooling performance, IP55 protection and a wide operating-temperature range to support reliable thermal management in demanding industrial installations.

Typical Applications

• Industrial electrical control cabinets.
• Automation and PLC enclosures.
• Machine tool control systems.
• Drive and inverter cabinets.
• Manufacturing and production machinery.
• Dusty, contaminated or high-temperature industrial environments.
• Applications with a central cooling-water supply.
• Enclosures requiring high-capacity closed-circuit cooling.