Rittal Presents Enclosure Heaters Especially for the Canadian Winter

PB-54-Rittal-WinterHeaters-400.jpg

February 10, 2022

Industrial enclosures are often in outdoor environments where weather conditions and other hazards are very real challenges. These are intensified when you add extreme cold and the necessity to provide adequate heating for these enclosures to protect the electronics inside. As with enclosure cooling solutions, targeted enclosure heating with the appropriate thermal output,  efficient energy consumption, and flexibility for use in a variety of applications are mission-critical for the durability and longevity of industrial enclosures to weather the winter months.

How enclosure heaters work

Before you can decide whether an industrial enclosure heating solution is right for your application, let’s first take a look at how enclosure heaters work to combat the buildup of frost, ice, and condensation, as well as maintaining an optimal operating temperature for enclosed electronics.

With an enclosure heater, a PTC resistor converts electricity into a heat source. This resistor increases its resistance while the electric current decreases, which in turn decreases the enclosure temperature. Essentially, the PTC resistor functions as an acceleration pedal with a governing device on it to provide the appropriate thermal output while at the same time helping to ensure the electronics inside do not overheat and are not subjected to elevated temperatures that would hamper performance.

Optimal heating outputs

Calculating the optimal temperature to help prevent the enclosure from overheating while maintaining peak efficiency can be something of a delicate dance, especially depending on the severity and duration of the cold to which the enclosure is exposed. A relatively simple equation can help you identify the right heating output to optimize performance and enhance service life:

  •    –   Calculated enclosure area A = 4.38 m²
  •    –   Desired temperature in the enclosure Ti = +10 °C
  •    –   Minimum ambient temperature Tu = -5 °C
  •    –   Heat transfer coefficient k = 5.5 W/m²K

With these variables and a formula framework of “Pverw = k x A x (Ti-Tu),” it can be determined that optimal heating output for an industrial enclosure of this nature should be 361 watts. Of course, there are other contextual elements that could slightly alter this output projection, but a basic understanding of how enclosure heaters work and this equation for determining thermal output gives you a leg-up on identifying the right solution for your application.

Considerations for installing an enclosure heater

Some of the more common applications for industrial enclosure heating solutions include traffic guidance or light systems, toll booths, sewage treatment plants, large-scale mobile hotspots or smartphone technology, and charging stations for electric vehicles. While each of these applications is quite different, there are a handful of important considerations for installing any enclosure heating solution that can determine efficiency and effectiveness.

Proper heater installation procedure includes:

  •    –   When installing enclosures outdoors, the capacity must be doubled
  •    –   Positioning the heater as low as possible inside the enclosure
  •    –   Installing the heater beneath the electronics that require targeted heating
  •    –   Ensuring the distance between the heating solution and the bottom of the enclosure must be at least 100 mm
  •    –   Allowing adequate free space around the heating solution
  •    –   Depending on the application, a thermostat and/or hygrostat should be used

The modular design and engineering of Rittal’s enclosure heating solutions not only account for these installation guidelines, but Rittal’s enclosures heater provide a variety of fan integration options, continuous thermal output with a variety of BTU/hr capabilities, dynamic thermostat interfaces, and aluminum construction for ease of installation.

In addition, Rittal’s enclosure heaters combine innovative state-of-the-art targeted heating with the ability to scale your heating solution no matter the application to regulate relative humidity, prevent temperatures from dropping below optimal dewpoints, and help eliminate corrosion and other electrical failures from condensation buildup.

Download the Enclosure Heater Flyer HERE.

Related Articles


Changing Scene

  • Tri-Mach Announces the Purchase of an Additional 45,000 sq ft. Facility

    Tri-Mach Announces the Purchase of an Additional 45,000 sq ft. Facility

    Recently, Tri-Mach Inc. was thrilled to announce the addition of a new 45,000 sq ft. facility. Located at 285 Union St., Elmira, ON, this facility expands Tri-Mach’s capabilities, allowing them to better serve the growing needs of their customers. Positioning for growth, this additional facility will allow Tri-Mach to continue taking on large-scale projects, enhance product performance testing, and provide equipment storage for their customers. Read More…

  • HELUKABEL Group Builds New Facility for Automation Cable Solutions

    HELUKABEL Group Builds New Facility for Automation Cable Solutions

    The HELUKABEL Group recently announced it is going to build a new facility in Haan, Germany that will house its robotic dress pack and drag chain system subsidiaries under one roof. The new building will also serve as the headquarters of HELUKABEL’s Rhine-Ruhr sales branch, and is planned to be completed by 2025. Robotec Systems’ core business is robotic dress pack solutions and has been a HELUKABEL subsidiary since 2012 operating out of Duisburg, a suburb of Duesseldorf in northwest Germany. Read More…


Sponsored Content
Fire Protection for Lithium-ion Battery Energy Storage Systems

Lithium-ion storage facilities contain high-energy batteries combined with highly flammable electrolytes. In addition, they are prone to quick ignition and explosion in a worst-case scenario. Such fires can have a significant financial impact on organizations. Rapid detection of electrolyte gas particles and extinguishing are the key to a successful fire protection concept. Since December 2019, Siemens has been offering a VdS-certified fire protection concept for stationary Li-ion battery storage systems.

Click HERE to learn more.


For a Multiplied Value Unified

PB-62-Excelpro-MultipliedValue-400.jpg

During the last few years, the Excelpro Group has welcomed AIA Automation, Envitech Automation and Conrad Lavoie Electrical, all of which have become ‘Member of the Excelpro Group’.

It was with great excitement that in November of 2022, Excelpro announced that these three companies officially became Excelpro. This decision is part of a strategy to enhance the Excelpro Group’s brand in its market.

These companies already collaborate on various client projects. This merger brings together the complementary strengths of the employees and ensures a global synergy of the activities throughout the Group.

Read More


Service Wire Co. Announces New Titles for Key Executives

Bruce Kesler and Mark Gatewood have been given new titles and responsibilities for Service Wire Co.

Bruce Kesler has assumed the role of Senior Director – Business Development. Bruce will be responsible for Service Wire’s largest strategic accounts and our growing Strategic Accounts Team.

Mark Gatewood has been promoted to the role of Vice President – Sales & Marketing. In this role, Gatewood will lead the efforts of Service Wire Company’s entire sales and marketing organization in all market verticals.

Read More


Modern Niagara Partners with Global Sustainability Platform Worldfavor

Worldfavor is a global sustainability platform, digitizing and automating the collection, calculation, aggregation and visualization for analysis and reporting of ESG data. Now, Worldfavor is proud to welcome Modern Niagara as a new customer. Modern Niagara is the first Canadian construction company to partner with Worldfavor.

“Worldfavor was founded to be the best platform for sharing, accessing and gaining insights from corporate ESG information. Worldfavor’s mission is to make sustainability mainstream and with that we offer solutions to accelerate sustainability through the value chain. Modern Niagara is the first Canadian construction company to partner with Worldfavor. 

Read More


JMP Parent Company, CONVERGIX Acquires AGR Automation, Expanding Global Reach

Convergix Automation Solutions has completed the acquisition of AGR Automation (“AGR”), a UK-based provider of custom, high-performance automation design and systems integration primarily to the life sciences industry.

Following Convergix’s acquisitions of JMP Solutions in August 2021 and Classic Design in February 2022, AGR marks the third investment in Crestview’s strategy to build Convergix into a diversified automation solutions provider targeting the global $500+ billion market, with a particular focus on the $70 billion global systems integration and connectivity segments. Financial terms of the transaction were not disclosed.

Read More


Latest Articles