DEK40NTU9 nVent Hoffman Roof Mount Air Conditioner, 3850 W, 460 V, 496x492x784 Stainless Steel, UL
nVent HOFFMAN DEK40NTU9 roof mount air conditioner, a 3850 W enclosure cooling unit designed for industrial electrical cabinets and automation systems.
SKU:DEK40NTU9MPN:DEK40NTU9
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Why Choose the nVent HOFFMAN DEK40NTU9 Roof Mount Air Conditioner?
The nVent HOFFMAN DEK40NTU9 is a high-performance roof-mounted enclosure air conditioner designed to provide reliable cooling for industrial electrical enclosures, automation cabinets and control systems. As part of the trusted nVent HOFFMAN DEK roof cooling unit series, it delivers efficient thermal management while preserving valuable enclosure space for electrical components and accessories.
This roof-mounted cooling solution is engineered to maintain a controlled internal enclosure temperature by removing excess heat generated by electrical and automation equipment. The DEK series combines robust construction, efficient cooling technology and practical top-mounted installation for dependable operation in demanding industrial environments.
With a cooling capacity of 3850 W, a 460 V AC supply and a durable stainless steel construction, the DEK40NTU9 is suitable for industrial cabinets requiring powerful cooling performance and corrosion-resistant protection. Its roof-mounted design allows effective cooling without occupying enclosure doors or side panels.
Key Advantages
High-performance roof-mounted cooling solution for industrial enclosures.
3850 W cooling capacity for large electrical cabinets and automation systems.
460 V AC supply suitable for industrial power installations.
Stainless steel construction provides durability in demanding environments.
Roof installation saves enclosure door and side panel space.
UL certified design for industrial applications.
Reliable temperature control helps protect sensitive electrical equipment.
Key Features
nVent HOFFMAN DEK roof mount air conditioner series.
3850 W cooling capacity.
460 V AC input supply.
50 / 60 Hz operating frequency.
Stainless steel enclosure construction.
IP54 protection rating.
UL certified for industrial enclosure applications.
Roof-mounted configuration for efficient cabinet cooling.
Integrated temperature control for reliable operation.
Designed for electrical cabinets, automation systems and industrial equipment.
Reliable Cooling for Industrial Enclosures
Industrial electrical components generate heat during operation, and excessive temperatures can reduce equipment reliability and service life. The nVent HOFFMAN DEK40NTU9 provides effective heat removal to maintain a stable enclosure environment and protect critical control components.
The DEK series is designed for panel builders, OEM manufacturers and industrial automation engineers requiring reliable cooling, robust materials and straightforward installation. Its roof-mounted design delivers efficient thermal control while keeping enclosure access points available for other equipment.
Typical Applications
Industrial control cabinets and electrical panels.
Automation and machine-building systems.
Manufacturing equipment enclosures.
Power distribution cabinets.
Process control systems.
Industrial electrical installations requiring high cooling capacity.
Technical Specifications
Country of Manufacture
Italy
Manufacturer
nVent HOFFMAN
Series
DEK Roof Mount Air Conditioner
Model
DEK40NTU9
Product type
Roof-mounted enclosure air conditioner
Cooling capacity
3850 W
Nominal voltage
460 V AC
Frequency
50 / 60 Hz
Material
Stainless steel
Protection rating
IP54
Certification
UL
Height
496 mm
Width
492 mm
Depth
784 mm
Mounting type
Roof mounting
Frequently Asked Questions
What is the nVent HOFFMAN DEK40NTU9 used for?
The DEK40NTU9 is a roof-mounted enclosure air conditioner designed to cool large industrial electrical cabinets and automation systems.
What cooling capacity does the DEK40NTU9 provide?
The unit provides a cooling capacity of 3850 W for effective enclosure temperature management.
What supply voltage does the DEK40NTU9 require?
The DEK40NTU9 operates from a 460 V AC supply.
What material is the DEK40NTU9 manufactured from?
The unit features a stainless steel construction designed for demanding industrial environments.
Where is this air conditioner installed?
The DEK40NTU9 is installed on the roof of electrical enclosures to provide cooling without using door or side panel mounting space.
Trusted by Industrial Automation Professionals
nVent HOFFMAN DEK roof cooling units are trusted by enclosure specialists and automation engineers worldwide for dependable temperature control, durable construction and protection of industrial electrical systems.
Country of Manufacture
Italy
Manufacturer
nVent HOFFMAN
Series
DEK Roof Mount Air Conditioner
Model
DEK40NTU9
Product type
Roof-mounted enclosure air conditioner
Cooling capacity
3850 W
Nominal voltage
460 V AC
Frequency
50 / 60 Hz
Material
Stainless steel
Protection rating
IP54
Certification
UL
Height
496 mm
Width
492 mm
Depth
784 mm
Mounting type
Roof mounting
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...