Why Choose the nVent HOFFMAN DEK12GT09 Roof Mount Air Conditioner?
The nVent HOFFMAN DEK12GT09 is a high-performance roof mount air conditioner designed to provide reliable active cooling for electrical enclosures and industrial control cabinets. As part of the nVent HOFFMAN DEK roof cooling unit series, it helps maintain stable internal temperatures to protect sensitive electrical, automation and control equipment from excessive heat.
Designed for installation on top of compatible enclosures, the DEK12GT09 provides efficient cooling where door or side panel space is limited. Its stainless steel construction provides enhanced durability for industrial environments, while its compact roof-mounted format supports flexible enclosure design.
With a cooling capacity of 1150 W and a 400 V supply, the DEK12GT09 is suitable for medium-sized electrical cabinets requiring dependable thermal management. Its dimensions of 415 mm height, 401 mm width and 572 mm depth allow efficient roof installation on compatible enclosure systems.
Key Advantages
Compact nVent HOFFMAN roof mount air conditioner for industrial enclosures.
1150 W cooling capacity provides effective cabinet heat management.
400 V operation for industrial electrical systems.
Roof-mounted design preserves enclosure door and side panel space.
Stainless steel construction provides durable protection in industrial environments.
Helps maintain reliable operating conditions for electrical and automation equipment.
Key Features
nVent HOFFMAN DEK roof mount cooling unit series.
1150 W rated cooling capacity.
400 V AC supply.
Stainless steel housing construction.
CE compliant design.
Roof-mounted configuration for active enclosure cooling.
IP54 cabinet-side protection.
Designed for industrial control cabinet climate management.
Reliable Cooling for Industrial Electrical Enclosures
Active cooling units such as the nVent HOFFMAN DEK12GT09 help remove excess heat generated by drives, controllers, power supplies and automation equipment. Maintaining a controlled enclosure temperature improves component reliability and supports longer service life.
The DEK roof-mounted design provides an efficient cooling solution without occupying valuable enclosure side surfaces. Its electronic regulation, compact construction and reliable thermal performance make it suitable for demanding industrial cabinet applications.
Typical Applications
Industrial electrical control cabinets.
Automation and machine building systems.
PLC and control equipment enclosures.
Manufacturing and production equipment.
Process control installations.
Industrial enclosure climate management.
Technical Specifications
Country of Manufacture
Italy
Manufacturer
nVent HOFFMAN
Series
DEK Roof Mount Air Conditioners
Model
DEK12GT09
Product type
Roof mount air conditioner
Cooling capacity
1150 W
Cooling capacity EN14511 A35/A50
900 W
Supply voltage
400 V
Frequency
50 / 60 Hz
Material
Stainless steel
Certification
CE
Height
415 mm
Width
401 mm
Depth
572 mm
Cabinet air fan capacity
570 m³/h
Internal temperature range
20–45 °C
External temperature range
20–50 °C
Protection rating
IP54 cabinet side
Mounting type
Roof mounting
Frequently Asked Questions
What is the nVent HOFFMAN DEK12GT09 used for?
The DEK12GT09 is a roof mount air conditioner designed to cool electrical enclosures and protect internal components from excessive heat.
What cooling capacity does the DEK12GT09 provide?
The DEK12GT09 provides a rated cooling capacity of 1150 W.
What voltage does the DEK12GT09 require?
The DEK12GT09 operates from a 400 V electrical supply.
What material is the DEK12GT09 made from?
The DEK12GT09 features a durable stainless steel construction for industrial enclosure applications.
Where is the DEK12GT09 installed?
The DEK12GT09 is installed on the roof of compatible electrical enclosures to provide active cabinet cooling.
Trusted by Industrial Enclosure Engineers
nVent HOFFMAN cooling solutions are widely used by electrical engineers and system builders to maintain reliable operating conditions and protect critical industrial equipment.
Country of Manufacture
Italy
Manufacturer
nVent HOFFMAN
Series
DEK Roof Mount Air Conditioners
Model
DEK12GT09
Product type
Roof mount air conditioner
Cooling capacity
1150 W
Cooling capacity EN14511 A35/A50
900 W
Supply voltage
400 V
Frequency
50 / 60 Hz
Material
Stainless steel
Certification
CE
Height
415 mm
Width
401 mm
Depth
572 mm
Cabinet air fan capacity
570 m³/h
Internal temperature range
20–45 °C
External temperature range
20–50 °C
Protection rating
IP54 cabinet side
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...