Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
NVENT HOFFMAN CUON40504 Outdoor cooling unit 4050W
nVent HOFFMAN CUON40504 outdoor cooling unit providing 4050 W cooling capacity with IP55 protection for large industrial electrical enclosures.
Why Choose the nVent HOFFMAN CUON40504 Outdoor Cooling Unit?
The nVent HOFFMAN CUON40504 is a high-performance outdoor enclosure cooling unit designed to maintain reliable operating temperatures for electrical and automation equipment installed in demanding outdoor environments. As part of the nVent HOFFMAN CUON outdoor cooling unit series, it provides efficient thermal management while maximising available enclosure space through external vertical mounting.
With a powerful cooling capacity of 4050 W at L35L35 conditions, the CUON40504 is designed to remove excess heat from large electrical enclosures and protect sensitive components from overheating. Its smart energy management system helps reduce energy consumption compared with conventional cooling solutions.
Designed for outdoor installation, the unit provides IP55 protection with NEMA Type 4 and Type 4X classification. The cooling unit operates from a 400 V AC three-phase supply at 50 Hz or 460 V AC at 60 Hz, making it suitable for industrial enclosure climate control applications.
Key Advantages
- 4050 W outdoor cooling capacity for large industrial enclosure applications.
- External vertical mounting design maximises internal enclosure space.
- IP55 / NEMA Type 4 and Type 4X protection for outdoor environments.
- Smart energy management helps reduce operating costs.
- Self-cleaning condenser coil eliminates the need for a standard air filter and reduces maintenance requirements.
- Reliable thermal management for critical electrical and automation systems.
Key Features
- nVent HOFFMAN CUON outdoor cooling unit series.
- 4050 W cooling capacity at L35L35 conditions.
- 3260 W cooling capacity at L35L50 conditions.
- 400 V AC three-phase supply at 50 Hz / 460 V AC at 60 Hz.
- IP55 protection with NEMA Type 4 and Type 4X classification.
- Self-cleaning condenser coil design.
- Ozone-friendly R134a refrigerant.
- Adjustable thermostat with factory setting of 35 °C.
Reliable Thermal Management for Industrial Enclosures
Industrial cooling units such as the nVent HOFFMAN CUON40504 help maintain stable enclosure temperatures by removing heat generated by drives, controllers, power supplies and automation equipment. Effective climate control improves equipment reliability and supports longer component service life.
The CUON series is engineered for critical outdoor applications where electrical enclosures require dependable cooling performance. Its external mounting arrangement preserves valuable internal cabinet space while providing efficient thermal control in challenging environments.
Typical Applications
- Outdoor electrical control cabinets.
- Industrial automation enclosures.
- Power distribution equipment.
- Process control systems.
- Telecommunication and infrastructure cabinets.
- Large machine control installations.
Technical Specifications
Tick the specs you need, then view products that match.
| 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) | 4050 W | |
| Country of Manufacture | Italy | |
| Manufacturer | nVent HOFFMAN | |
| Series | CUON Outdoor Cooling Units | |
| Model | CUON40504 | |
| Product type | Outdoor enclosure cooling unit | |
| Cooling capacity L35L35 | 4050 W | |
| Cooling capacity L35L50 | 3260 W | |
| Power supply | 400 V AC / 460 V AC | |
| Phases | 3-phase | |
| Frequency | 50 / 60 Hz | |
| Maximum running current | 5.96 A | |
| Starting current | 19 A | |
| Pre-fuse | 15 A | |
| NEMA rating | Type 4 / Type 4X | |
| Dimensions (H × W × D) | 1211 × 511 × 356 mm | |
| Weight | 94.44 kg | |
| Noise level | 70 dB |
Frequently Asked Questions
What is the nVent HOFFMAN CUON40504 used for?
The CUON40504 is an outdoor cooling unit designed to control the temperature inside large electrical enclosures and protect installed equipment.
What cooling capacity does the CUON40504 provide?
The unit provides a cooling capacity of 4050 W at L35L35 conditions.
What power supply does the CUON40504 require?
The CUON40504 operates from a 400 V AC three-phase supply at 50 Hz or 460 V AC at 60 Hz.
What protection rating does this outdoor cooling unit have?
The unit provides IP55 protection with NEMA Type 4 and Type 4X classification for outdoor applications.
Where is the CUON40504 typically installed?
The cooling unit is typically installed externally on large industrial electrical enclosures, automation cabinets and outdoor control systems.
Trusted by Industrial Engineers Worldwide
nVent HOFFMAN climate control solutions are trusted by engineers and system builders worldwide for protecting electrical equipment through reliable enclosure cooling and thermal management.
