Helios KRW 450/4/70/40

The Helios KRW 450/4/70/40 is a powerful duct fan specifically designed for installation in rectangular duct systems. With a robust housing made of galvanized steel sheet, this fan provides a durable and reliable solution for ventilation. The backward-curved impeller blades made of plastic ensure high efficiency and vibration-free operation, which is guaranteed by dynamic balancing according to quality level G 6.3 DIN ISO 1940 T.1. Its compact design allows for space-saving installation, while the service-friendly construction minimizes maintenance efforts through the swing-out motor-impeller unit. The fan is equipped with a maintenance-free external rotor motor that allows for stepless speed control, making it adaptable to various requirements. The Helios KRW 450/4/70/40 is an ideal choice for applications that require reliable and efficient air circulation.

• Backward-curved impeller blades for high efficiency
• Swing-out motor-impeller unit for easy maintenance
• Vibration-free operation through dynamic balancing
• Maintenance-free external rotor motor with stepless speed control
• Housing made of galvanized steel sheet for durability.