High performance and fast mounting
Enclosure heaters are often necessary to prevent failures
or corrosion caused by low temperatures or high humidity
inside the enclosure. Such conditions are likely to occur when
ambient temperature is low and the equipment inside the
enclosure is not powered or fails to dissipate enough heat to
keep enclosure temperature above the minimum threshold.
Outdoor enclosures, for instance, are almost always in such
According to the type of heater, surface temperature is limited
either by a PTC or by an over temperature safety switch. This
allows a safe operation and a self-adjusted heating power.
All heaters are in Class II, except FSHT and FMHT series in