The HELI SB EC 315 A 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 essential. 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 fan ensures easy maintenance, as the fan chamber and housing spiral are easily accessible. Additionally, the integrated electronic temperature monitoring ensures reliable operation and durability of the device. The HELI SB EC 315 A SILENTBOX is ideal for use in residential and commercial spaces where effective and quiet ventilation is required.

• Sound-dampened housing with sound-absorbing inner lining
• Energy-saving, speed-controllable EC external rotor motor
• Maintenance-free, ball-bearing motor for high reliability
• Stepless speed control for flexible adjustment to requirements
• Easy accessibility of the fan chamber for maintenance work.