Why do solid state relays burn out?
If an ambient temperature exceeds the rated value, the SSR output elements may be damaged. … If the SSR is used with loose screws of its output terminals or imperfect solder, abnormal heat generation while current flowing causes the SSR to burn out. Perform the proper wiring and soldering.
How hot does an SSR get?
around 80 to 100 degrees
The Solid-state Relay (SSR) is too hot to touch. Does it have any trouble? Although when the maximum current flows in the rated range, the temperature of the SSR reaches around 80 to 100 degrees, it is not abnormal. However, pay careful attention to the heat loss.
Do solid state relays need a heatsink?
Heat Sinks are required to insure the proper operation and long term reliability of Solid State Relays because they provide a means to dissipate the power that is normally developed by the SSR into the surrounding ambient air and maintain a safe operating temperature.
How do you cool a solid state relay?
In the manual of my solid state relay it is mentioned that they recommend using a heat sink with the SSR and if the current exceeds a certain limit (almost 2 magnitudes above what I need) they additionally recommend using active cooling with a fan.