What temperature can a TK enclosure withstand if you have a transformer constantly running within it?
Short answer
TK enclosures withstand different temperatures depending on material and fittings: empty TK PC (polycarbonate) and TK AL (aluminium) units tolerate up to 60°C average ambient temperature, dropping to 35°C once fitted with components. TK PS (polystyrene) enclosures are rated to 35°C average in both empty and fitted configurations, and ventilation sets are available to reduce internal heat.
A constantly running transformer can generate a large amount of heat that can damage both the device and its enclosure. Therefore, it is important to avoid any excessive heat build-up and consider what temperatures the two components can withstand.
Spelsberg’s industrial enclosures belonging to the TK series have different temperature resistance properties, depending on whether they are made of aluminium (TK AL), polycarbonate (TK PC) or polystyrene (TK PS) and whether they are provided as empty enclosures or with fittings.
While TK PS enclosures, either empty or with fittings, can withstand from -25°C (min.) and up to 40°C (max.), they cannot withstand more than 35°C as average ambient temperature over 24 hours.
Empty TK PC and TK AL can resist to higher temperatures: they are both suitable for average ambient temperatures of 60°C. Min. and max. temperatures tolerated are -35°C and 80°C, -35°C and 75°C respectively.
However, when TK PC and AL enclosures are equipped with fittings their temperature resistance decreases: they can withstand from -25°C (min.) and up to 40°C (max.) and an average of 35°C.
Depending on your application and local environment, it may be possible to add a ventilation set (there are various designs in our range) to help reduce the internal temperature of the enclosure.
If you have specific questions about enclosures for transformers in a project that you’re working on, please feel free to send Spelsberg a message to discuss the detailed requirements for your intended application. We will help to identify the best enclosure for your needs.
As a leading enclosures supplier and manufacturer, Spelsberg is able to customise and supply specialist solutions that meet the specific requirements of your transformer, if your requirements are not satisfied by any of the standard enclosures available.
For further information on the TK series visit:
https://www.spelsberg.co.uk/highlights/industrial-enclosures/
To find the product that best match with your application, use our product finder tool: https://www.spelsberg.co.uk/product-finder/
Does your installation not quite fit this answer?
Ask a follow-up — we’ll reply within one working day.