Heaters for control cabinets RIZUR-OShA-IP20-B with a ventilator (standard version). Designed for use outside of hazardous areas. Heating element - PTC thermistor. The majority of the manufacturers nowadays switch onto PTC thermistors because they not only provide heating but also guaranty safety and long service life.

Heaters for control cabinets RIZUR-OShA-IP20 (budget version). Designed for use outside of hazardous areas. Heating element - PTC thermistor.
The majority of the manufacturers nowadays switch onto PTC thermistors because they not only provide heating but also guarantee safety and long service life.