Anti-condensation heaters prevent moisture from forming inside electrical enclosures by maintaining the internal temperature above the dew point.
Outdoor equipment is particularly vulnerable to condensation due to temperature fluctuations — as daytime warmth gives way to the chill of night. Condensation can also occur inside indoor enclosures when humidity is high and temperatures vary. It happens when warm, moist air comes into contact with cooler surfaces.
If not properly managed, condensation can lead to mold growth, corrosion, mechanical failure, short circuits, and in extreme cases, fire.
For example, in a control cabinet with an internal air temperature of 27°C (80.6°F) and 75% relative humidity, a temperature drop to 22°C (71.6°F) or below will trigger condensation inside the enclosure.
