Rittal SK 3216.480 wall-mounted air/water heat exchanger with 7 kW cooling output at L35 W10, 4.5 kW at L35 W20, three-phase 400/480 V AC operation, thermostat-controlled water flow and IP55 protection.
£3,599.10
The Rittal SK 3216.480 is a high-capacity wall-mounted air/water heat exchanger designed for reliable climate control of industrial electrical enclosures in demanding environments. By transferring enclosure heat into a cooling-water circuit, it provides efficient closed-loop cooling while keeping sensitive internal components isolated from contaminated ambient air.
With a total cooling output of 7 kW at L35 W10 with 500 l/h water flow and 4.5 kW at L35 W20, the SK 3216.480 is suitable for substantial thermal loads generated by drives, power electronics, automation equipment and other heat-producing components. A thermostat-controlled magnetic valve regulates the cooling-water flow according to enclosure temperature.
The unit supports 400 V AC, three-phase, 50 Hz and 480 V AC, three-phase, 60 Hz supplies and provides IP55 protection to IEC 60529. Its robust 450 × 1800 × 300 mm wall-mounted housing, copper/brass water circuit and operating temperature capability up to +70 °C make it particularly suitable for harsh industrial installations.
Air/water heat exchangers remove thermal energy from an electrical enclosure by transferring heat from the internal air circuit into a controlled cooling-water supply. This allows the enclosure to remain effectively isolated from the surrounding atmosphere, making water-based cooling particularly useful in dusty, oily or otherwise contaminated industrial environments.
The Rittal SK 3216.480 combines a high 7 kW cooling capacity with thermostat-controlled water regulation and powerful internal airflow. Its wide operating temperature range, continuous-duty capability and robust copper/brass water circuit make it suitable for demanding machinery, automation and power-electronics applications.
| Manufacturer | Rittal |
|---|---|
| Series | SK |
| Model | SK 3216.480 |
| Product type | Wall-mounted air/water heat exchanger |
| Cooling medium | Water |
| Total cooling output L35 W10 at 500 l/h | 7 kW |
| Total cooling output L35 W20 at 500 l/h | 4.5 kW |
| Rated operating voltage | 400 V AC, 3~, 50 Hz; 480 V AC, 3~, 60 Hz |
| Maximum rated current at 50 Hz | 1.4 A |
| Maximum rated current at 60 Hz | 1.2 A |
| Internal air throughput at 50 Hz | 4075 m³/h |
| Internal air throughput at 60 Hz | 4840 m³/h |
| Duty cycle | 100% |
| Temperature control | Thermostat-controlled magnetic valve |
| Temperature monitoring | Internal thermostat with change-over contact |
| Thermostat switching load | 16 A |
| 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 |
| Electrical connection | Plug-in terminal strip |
| Pre-fuse | 4 A miniature circuit-breaker / fuse |
| Motor circuit-breaker | 1.4–2 A |
| Mounting type | Wall-mounted |
| Dimensions (W × H × D) | 450 × 1800 × 300 mm |
| Width | 450 mm |
| Height | 1800 mm |
| Depth | 300 mm |
| Colour | RAL 7035 |
| Net weight | approx. 80 kg |
| Gross weight | approx. 90 kg |
| EAN | 4028177458642 |
| Customs tariff number | 84158300 |
| ETIM 9 | EC002515 |
| ETIM 8 | EC002515 |
| ECLASS 8.0 | 27180712 |
The Rittal SK 3216.480 is used to cool high-heat-load industrial electrical enclosures by transferring heat from the internal air to a cooling-water circuit while keeping the enclosure isolated from the surrounding environment.
The unit provides 7 kW at L35 W10 with 500 l/h water flow and 4.5 kW at L35 W20.
The SK 3216.480 operates from 400 V AC, three-phase, 50 Hz or 480 V AC, three-phase, 60 Hz.
The heat exchanger accepts cooling-water inlet temperatures from 1–30 °C, uses ½-inch connector sleeve and G ⅜-inch external-thread connections, and supports a maximum permissible operating pressure of 10 bar.
The Rittal SK 3216.480 provides IP55 protection to IEC 60529 and is designed for industrial ambient temperatures from 1–70 °C.
Rittal air/water heat exchangers provide dependable closed-loop thermal management for demanding industrial enclosures, combining high cooling capacity, robust water circuits and reliable temperature control for continuous-duty applications.
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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...