The HELI SB EC 315 SILENTBOX duct fan from Helios is a highly advanced ventilation fan specifically designed for quiet operation. With a housing made of galvanized steel and a sound-absorbing inner lining, this fan provides an effective solution for applications where a quiet environment is required. The fan is equipped with an energy-saving EC external rotor motor that allows for high efficiency and stepless speed control. The design of the unit ensures easy maintenance, as the fan chamber and housing spiral are easily accessible. Additionally, the integrated electronic temperature monitoring ensures reliable operation of the motor and electronics. The HELI SB EC 315 is ideal for use in residential and commercial spaces where effective and quiet ventilation is necessary.

• Sound-dampening housing with sound-absorbing inner lining
• Energy-saving, speed-controllable EC external rotor motor
• Maintenance-free operation thanks to ball-bearing construction
• Stepless speed control for flexible adjustment
• Easy accessibility for maintenance and cleaning.