Semiconductor heater HG140 AC/DC 12-30V, 30W System air conditioning SIVACON 8MF / 8MR - for climate in the cabinet. The system air conditioning meets specific requirements. SIVACON 8MR ensures the trouble-free operation of the electrical and electronic devices installed in the cabinet even under adverse environmental conditions. Among other things, it prevents condensation or frost damage and protects against resulting malfunctions. The portfolio ranges from filter fans to cooling and heating devices to thermostats. Alternatively, ventilated cabinets can be used in operating rooms, in which the system air conditioning is ensured by natural convection.