Rittal SK 3209.100 roof-mounted air/water heat exchanger with 2.5 kW cooling output, 230 V single-phase supply, basic temperature controller, copper/brass water circuit and IP55 protection.
£1,205.81
The Rittal SK 3209.100 is a robust roof-mounted air/water heat exchanger designed for efficient climate control of industrial electrical enclosures in demanding environments. By transferring enclosure heat to a cooling-water circuit, it provides effective closed-loop cooling without exposing sensitive internal components directly to contaminated ambient air.
With a total cooling output of 2.5 kW at L35 W10 with 400 l/h water flow, the SK 3209.100 is suitable for managing substantial heat loads generated by drives, PLCs, power electronics and other industrial equipment. It operates from a 230 V, 1~, 50/60 Hz supply and uses a basic temperature controller factory-set to +35 °C.
Designed for roof mounting, the unit measures 597 × 417 × 475 mm and provides IP55 protection to IEC 60529 as standard. Copper/brass water-carrying components, flexible water connection options and an operating temperature range extending up to +70 °C make it particularly suitable for harsh industrial environments.
Air/water heat exchangers remove heat from an enclosure by transferring thermal energy from the internal air circuit to a cooling-water circuit. Because the enclosure air remains separated from the surrounding environment, this method is particularly effective in industrial locations where ambient air contains dust, oil mist or other contaminants that make open-loop fan ventilation unsuitable.
The Rittal SK 3209.100 combines 2.5 kW cooling performance with a roof-mounted format that preserves enclosure wall space. Its basic controller regulates the enclosure temperature, while the flexible water connection arrangement and 10 bar maximum permissible operating pressure support integration into suitable industrial cooling-water systems.
| Manufacturer | Rittal |
|---|---|
| Series | SK |
| Model | SK 3209.100 |
| Product type | Air/water heat exchanger |
| Design | Roof-mounted |
| Cooling medium | Water |
| Total cooling output L35 W10 at 400 l/h | 2.5 kW |
| Rated operating voltage | 230 V, 1~, 50/60 Hz |
| Power consumption at 50 Hz | 95 W |
| Power consumption at 60 Hz | 110 W |
| Maximum rated current at 50 Hz | 0.4 A |
| Maximum rated current at 60 Hz | 0.48 A |
| Duty cycle | 100% |
| Temperature control | Basic controller |
| Factory temperature setting | +35 °C |
| Temperature setting range | 20–55 °C |
| Operating temperature range | 1–70 °C |
| Water inlet temperature range | 1–30 °C |
| Maximum permissible operating pressure | 10 bar |
| Water connections | ½-inch connector sleeve / G ⅜-inch external thread |
| Water-carrying parts | Copper/brass (Cu/CuZn) |
| Protection rating | IP55 to IEC 60529 |
| Optional protection | IP65 available on request |
| Electrical connection | Plug-in terminal strip |
| Pre-fuse | 4 A miniature circuit-breaker/fuse |
| Mounting type | Roof-mounted |
| Dimensions (W × H × D) | 597 × 417 × 475 mm |
| Width | 597 mm |
| Height | 417 mm |
| Depth | 475 mm |
| Colour | RAL 7035 |
| Net weight | 33.25 kg |
| Gross weight | 35 kg |
| Pack quantity | 1 piece |
| Customs tariff number | 84158300 |
| ETIM 9 | EC002515 |
| ETIM 8 | EC002515 |
| ECLASS 8.0 | 27180712 |
The Rittal SK 3209.100 is a roof-mounted air/water heat exchanger for cooling industrial electrical enclosures, transferring enclosure heat to a cooling-water circuit while keeping the internal air separated from the surrounding environment.
The SK 3209.100 provides a total cooling output of 2.5 kW at L35 W10 with a water flow of 400 l/h.
The Rittal SK 3209.100 operates from a 230 V, single-phase, 50/60 Hz electrical supply.
The unit provides a ½-inch connector sleeve and G ⅜-inch external thread, accepts cooling-water inlet temperatures from 1–30 °C and has a maximum permissible operating pressure of 10 bar.
The SK 3209.100 provides IP55 protection to IEC 60529 as standard and is designed for ambient operating temperatures from 1–70 °C. IP65 protection is available on request.
Rittal air/water heat exchangers provide reliable closed-loop climate control for industrial electrical enclosures, combining efficient water-based heat removal, robust construction and high protection ratings for demanding operating environments.
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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...