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NVENT HOFFMAN CUON21004 Outdoor cooling unit 2100W
nVent HOFFMAN CUON21004 outdoor cooling unit with 2100 W cooling capacity, 400 V AC three phase supply and IP55 protection for industrial enclosures.
Why Choose the nVent HOFFMAN CUON21004 Outdoor Cooling Unit?
The nVent HOFFMAN CUON21004 is a high-performance outdoor-mounted enclosure cooling unit designed to provide reliable thermal management for electrical cabinets installed in demanding industrial environments. As part of the nVent HOFFMAN CUON outdoor cooling unit series, it delivers efficient cooling while protecting sensitive electrical and automation components from excessive heat.
The CUON21004 features an external vertical mounting design that maximises available enclosure space while providing effective cooling performance for outdoor installations. Its robust construction, energy management technology and sealed enclosure protection make it suitable for applications where environmental exposure and temperature control are critical.
With a 2100 W cooling capacity, 400 V AC three-phase supply and IP55 protection rating, the CUON21004 is ideal for industrial control cabinets, outdoor automation systems and electrical enclosures requiring dependable cooling in harsh conditions.
Key Advantages
- High-performance outdoor cooling unit for industrial electrical enclosures.
- 2100 W cooling capacity for effective enclosure temperature control.
- IP55 / NEMA 4 protection rating suitable for outdoor environments.
- External mounting design preserves valuable enclosure space.
- Smart energy management helps reduce power consumption.
- Self-cleaning condenser coil eliminates the need for a standard air filter.
- Suitable for harsh industrial environments with wide operating temperature ranges.
Key Features
- nVent HOFFMAN CUON outdoor cooling unit series.
- 2100 W cooling capacity at L35L35 conditions.
- 1800 W cooling capacity at L35L50 conditions.
- 400 V AC three-phase power supply.
- IP55 / TYPE 4 protection rating.
- Outdoor vertical mounting configuration.
- Galvanised steel powder-coated construction with RAL 7035 finish.
- Ozone-friendly R134a refrigerant.
- Integrated condensation dissipator.
- Adjustable thermostat with factory setting of 35 °C.
- Terminal connection included for simplified installation.
Reliable Thermal Management for Outdoor Enclosures
The nVent HOFFMAN CUON21004 maintains stable internal enclosure temperatures by removing heat generated by PLCs, drives, power supplies and other electrical components. Effective cooling improves equipment reliability and helps prevent failures caused by excessive heat.
Designed for outdoor industrial applications, the CUON series combines robust environmental protection with efficient cooling technology. The self-cleaning condenser coil reduces maintenance requirements, while smart energy management helps optimise operating costs.
Typical Applications
- Outdoor industrial control cabinets.
- Electrical switchgear and distribution enclosures.
- Remote automation systems.
- Telecommunication and infrastructure cabinets.
- Machine building and OEM equipment installed outdoors.
- Power electronics and industrial control systems.
Technical Specifications
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| Device Type | Wall / door-mounted cooling unit | |
|---|---|---|
| Coil / Supply Voltage | 400 V AC, 3-phase | |
| IP Rating | IP55 | |
| Voltage | 400 V AC | |
| Cooling Output (W) | 2100 W | |
| Country of Manufacture | Italy | |
| Manufacturer | nVent HOFFMAN | |
| Series | CUON Outdoor Cooling Units | |
| Model | CUON21004 | |
| Product type | Outdoor vertical enclosure cooling unit | |
| Cooling capacity L35L35 | 2100 W | |
| Cooling capacity L35L50 | 1800 W | |
| Power consumption L35L50 | 1200 W | |
| Power supply | 400 V AC | |
| Supply frequency | 50 Hz | |
| Input phases | 3-phase | |
| Maximum running current | 3.62 A | |
| Starting current | 22 A | |
| Pre-fuse | 15 A | |
| Noise level | 69 dB | |
| NEMA rating | NEMA 4 | |
| Finish | RAL 7035 powder coating | |
| Dimensions (H × W × D) | approx. 996 × 409 × 286 mm | |
| Weight | approx. 53.33 kg | |
| Internal operating temperature range | +25 °C to +45 °C | |
| External operating temperature range | -40 °C to +55 °C |
Frequently Asked Questions
What is the nVent HOFFMAN CUON21004 used for?
The CUON21004 is used to cool outdoor electrical enclosures and control cabinets where reliable temperature management is required.
What cooling capacity does the CUON21004 provide?
The unit provides a cooling capacity of 2100 W under L35L35 conditions and 1800 W under L35L50 conditions.
What power supply does the CUON21004 require?
The CUON21004 operates from a 400 V AC three-phase supply.
Is the CUON21004 suitable for outdoor installation?
Yes, the unit is designed for outdoor applications with an IP55 / NEMA 4 protection rating and an external operating temperature range down to -40 °C.
Does the CUON21004 require an air filter?
The unit uses a self-cleaning condenser coil, removing the need for a standard air filter and reducing routine maintenance.
Trusted by Industrial Automation Professionals
nVent HOFFMAN CUON outdoor cooling units are trusted by engineers and machine builders worldwide to deliver dependable enclosure cooling, protecting critical electrical systems in challenging industrial environments.
