The compact high-performance fan heater prevents formation of condensation and provides an evenly distributed interior air temperature in enclosures. It has clip for DIN Rail mounting. The heating element is made on the basis of a self-regulating cable. The temperature of the heating element does not exceed 65°C, which ensures maximum safety and energy efficiency. The original design of the cable fastening does not allow its individual turns to touch each other, which allows maintaining the maximum heat transfer. The heater and fan are connected to the electrical circuit using two screw terminals. It is possible to separate the power circuits of the heater and the fan and use the fan together with the heater or separately in the cooling / ventilation modes of the enclosure. The NSBox Heating is suitable for all types of panels and enclosures.