In the technical data sheets of thermostats or other automatic switches, manufacturers indicate the maximum current value applicable to contacts with resistive load expressed in Amperes and, in brackets, the inductive load. For UL certified products, the manufacturers indicate only the value for resistive load, while they specify the inductive loads through the maximum applicable […]
Enclosures
Difference between predictive, preventive and reactive maintenance in thermal management
Maintenance policies are divided into reactive, preventive, or predictive, with crystal clear semantic distinctions. Each of these “approaches to trouble” has advantages and limitations, according to the specifics of the application, and has historically been codified one after the other following the growing complexity of systems and the availability of new technologies. Different approaches Therefore, […]
How to size an electrical panel: the tools
There are several tools that we can use to correctly size an electrical panel. Each component inside the panel, in fact, is characterized by thermal dissipation values, values that cannot be ignored to ensure an optimal configuration. This information, together with the analysis of the installation environment conditions, help us to establish the dimensions of […]
The protection degree for the thermal management in electrical panels
We have already talked about the IP protection degrees in our blog and we have seen how we universally refer to the IEC 60529 standard to classify the casings of any equipment. We now want to contextualize the topic in the specific application area of the enclosures cooling, through roof exhaust and filter fan units. […]
How to choose a filter fan: air flow, pressure and working point
Often the filter fan for an electrical panel is chosen based on the size and airflow, however, a deeper understanding is required to determine how the filter fan unit will actually behave in a real application. In this article, we will address the definitions of airflow and static pressure, then examine the relationship between them […]