Rittal SK 3375.100 is a 5 kW wall-mounted air/water heat exchanger with 230 V single-phase operation, IP55 protection, copper/brass water-carrying parts and Basic temperature control for high-capacity industrial enclosure cooling.
£1,752.07
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.
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.
| Manufacturer | Rittal |
|---|---|
| Model | SK 3375.100 |
| Product type | Wall-mounted air/water heat exchanger |
| Design | Wall-mounted |
| Total cooling output L35/W10 at 400 l/h | 5 kW |
| Rated operating voltage | 230 V AC, 1-phase, 50/60 Hz |
| Power consumption at 50 Hz | 172 W |
| Power consumption at 60 Hz | 172 W |
| Rated current at 50 Hz | 1.45 A |
| Rated current at 60 Hz | 1.45 A |
| Pre-fuse | 4 A |
| Duty cycle | 100% |
| Cooling medium | Water |
| Water inlet temperature | 1–30 °C |
| Permissible operating pressure | Up to 10 bar |
| Water connections | ½" connector sleeve / G ⅜" external thread |
| Water-carrying parts | Copper/brass (Cu/CuZn) |
| Temperature control | Basic controller |
| Factory temperature setting | +35 °C |
| Temperature setting range | 20–55 °C |
| Ambient operating temperature range | 1–70 °C |
| Protection rating | IP55 |
| NEMA protection | UL Type 1, UL Type 3R and UL Type 12 |
| Installation | External mounting or full internal mounting |
| Colour | RAL 7035 |
| Width | 450 mm |
| Height | 1400 mm |
| Depth | 220 mm |
| Dimensions (W × H × D) | 450 × 1400 × 220 mm |
| Net weight | 45 kg |
| Gross weight | 45 kg |
| Pack quantity | 1 pc |
| Supply includes | Fully wired heat exchanger, drilling template, sealing and assembly parts |
The Rittal SK 3375.100 is a wall-mounted air/water heat exchanger designed to remove heat from industrial electrical and electronic enclosures using a cooling-water circuit while keeping the enclosure air isolated from the surrounding environment.
The SK 3375.100 provides a total cooling output of 5 kW under L35/W10 conditions with a cooling-water flow of 400 l/h.
The heat exchanger operates from a 230 V AC, single-phase, 50/60 Hz supply.
The SK 3375.100 has an IP55 protection rating and is also classified as UL Type 1, Type 3R and Type 12.
The heat exchanger measures 450 × 1400 × 220 mm (W × H × D), including a depth of 220 mm.
Rittal air/water heat exchangers provide dependable closed-circuit cooling for industrial enclosures, combining high cooling capacity, robust environmental protection and flexible installation for demanding electrical and automation systems.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...