Different models of heatsinks have been designed and tested to
meet size and dimension needs.
How to choose a heatsink
• Set max. air temperature inside the panelboard (Tmaxa)
• Set max. operating current: Imax = Inom. load + 10%
• Draw on the “graphs” Tmaxa, Imax points.
• Choose the smallest heatsink (starting from upwards), which point [Tmaxa Imax] is in the gray working area of dissipation curves
• Respect installation distances