NVENT HOFFMAN DEK40NTUB Roof cooling unit 3800W, 400-460V, Mild steel, IP54

Q: What cooling capacity does this unit provide?

The unit provides a cooling capacity of 3850 W under L35/L35 conditions.

Q: What supply voltage does the DEK40NTUB require?

The DEK40NTUB operates from a 460 V AC three-phase supply.

Q: What protection rating does this cooling unit have?

The DEK40NTUB features an IP54 protection rating for industrial enclosure applications.

nVent HOFFMAN DEK40NTUB roof cooling unit with 3850 W cooling capacity designed for industrial enclosure thermal management and electrical cabinet cooling.

SKU: DEK40NTUBMPN: DEK40NTUB

List Price £3,676.00 ex VAT

Your Price (ex VAT)

£3,676.00

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Manufacturer Lead Time

£3,676.00

Why Choose the nVent HOFFMAN DEK40NTUB Roof Cooling Unit?

The nVent HOFFMAN DEK40NTUB is a high-performance roof-mounted enclosure cooling unit designed to maintain safe operating temperatures for industrial electrical cabinets and automation enclosures. As part of the reliable nVent HOFFMAN DEK40 series, it provides efficient thermal management where side or door-mounted cooling solutions are unsuitable.

This roof cooling unit delivers dependable enclosure climate control by removing excess heat and protecting sensitive electrical and electronic components from overheating. Its compact roof installation design helps maximise available enclosure space while providing efficient cooling performance for demanding industrial applications.

With a cooling capacity of 3850 W and a 460 V AC three-phase supply, the DEK40NTUB is suitable for large industrial control cabinets and electrical assemblies requiring reliable heat dissipation. The galvanised steel construction and IP54 protection rating provide robust protection for industrial environments.

Key Advantages

High-performance roof-mounted cooling solution for industrial enclosures.
3850 W cooling capacity for effective thermal management.
460 V AC three-phase operation for industrial power systems.
IP54 enclosure protection helps protect against dust and water ingress.
Roof installation saves valuable cabinet door and side panel space.
Reliable cooling for electrical, automation and control equipment.

Key Features

nVent HOFFMAN DEK40 roof cooling unit series.
3850 W L35/L35 cooling capacity.
2870 W L35/L50 cooling capacity.
460 V AC three-phase supply.
1450 m³/h cabinet air fan capacity.
IP54 protection rating for industrial enclosure cooling.
Roof-mounted design for efficient cabinet integration.
Galvanised steel construction with RAL 7035 finish.
Digital temperature control and efficient thermal management.

Reliable Thermal Management for Industrial Enclosures

Enclosure cooling units such as the nVent HOFFMAN DEK40NTUB regulate internal cabinet temperatures by removing heat generated by electrical components. This helps prevent thermal stress, improves equipment reliability and extends the service life of automation hardware.

The DEK40 series is designed for industrial control panels, machine building applications and electrical installations where dependable cooling performance is required. Its roof-mounted format allows efficient installation while maintaining accessibility and valuable enclosure space.

Typical Applications

Industrial control cabinets and electrical enclosures.
Automation systems and machine control panels.
Manufacturing and production equipment.
Power distribution and switchgear assemblies.
Process control systems.
OEM machinery and industrial installations.

Technical Specifications

Tick the specs you need, then view products that match.

Mounting Type	Roof
Coil / Supply Voltage	400–460 V AC, 3-phase
Device Type	Roof-mounted cooling unit
IP Rating	IP54
Voltage	400-460 V AC
Cooling Output (W)	3800 W
Country of Manufacture	Italy
Manufacturer	nVent HOFFMAN
Series	DEK40
Model	DEK40NTUB
Product type	Roof-mounted enclosure air conditioning unit
Cooling capacity L35/L35	3850 W
Cooling capacity L35/L50	2870 W
Input voltage	460 V AC
Input phases	Three-phase
Frequency	60 Hz
Maximum current	4.3 A
Power consumption L35/L35	1950 W
Mounting type	Roof mounting
Airflow	1450 m³/h
Operating temperature range outside	+20 °C to +50 °C
Operating temperature range inside	+20 °C to +45 °C
Dimensions (H × W × D)	496 × 492 × 784 mm
Weight	approx. 86 kg

Frequently Asked Questions

What is the nVent HOFFMAN DEK40NTUB used for?

The DEK40NTUB is used to cool industrial electrical enclosures and control cabinets by removing excess heat from installed equipment.

What cooling capacity does this unit provide?

The unit provides a cooling capacity of 3850 W under L35/L35 conditions.

What supply voltage does the DEK40NTUB require?

The DEK40NTUB operates from a 460 V AC three-phase supply.

Where is this cooling unit installed?

The unit is installed on the roof of an electrical enclosure, making it ideal where door or side panel mounting space is limited.

What protection rating does this cooling unit have?

The DEK40NTUB features an IP54 protection rating for industrial enclosure applications.

Trusted by Industrial Automation Professionals

nVent HOFFMAN DEK40 roof cooling units are trusted by engineers and machine builders worldwide to provide efficient enclosure cooling, reliable thermal protection and improved equipment performance.

Mounting Type	Roof
Coil / Supply Voltage	400–460 V AC, 3-phase
Device Type	Roof-mounted cooling unit
IP Rating	IP54
Voltage	400-460 V AC
Cooling Output (W)	3800 W
Country of Manufacture	Italy
Manufacturer	nVent HOFFMAN
Series	DEK40
Model	DEK40NTUB
Product type	Roof-mounted enclosure air conditioning unit
Cooling capacity L35/L35	3850 W
Cooling capacity L35/L50	2870 W
Input voltage	460 V AC
Input phases	Three-phase
Frequency	60 Hz
Maximum current	4.3 A
Power consumption L35/L35	1950 W
Mounting type	Roof mounting
Airflow	1450 m³/h
Operating temperature range outside	+20 °C to +50 °C
Operating temperature range inside	+20 °C to +45 °C
Dimensions (H × W × D)	496 × 492 × 784 mm
Weight	approx. 86 kg

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

Standard delivery

£8 ex VAT · free over £200

UK 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.

Collect from our showroom

Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

Priced at checkout

We deliver to Northern Ireland, the Republic of Ireland and overseas.

Delivery is calculated at checkout based on your destination.

Orders with mixed availability

Shipped complete

If part of your order is on a lead time, we hold it and send everything together.

Need the in-stock items sooner? Ask us and we can split the delivery.

Business customer returns

Returns & order support

Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

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Let’s get your return sorted.

Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

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Credit Accounts

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.

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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

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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.

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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.

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