Designed for supply and exhaust ventilation systems.
The case is made of high-quality durable plastic.
Fans are equipped with waterproof terminal box.
The impeller with back curved blades is powered by a single phase asynchronous AC motor with external rotor including the following features: -A dynamically balanced impeller with back curved blades balanced in two planes.
Overheating protection with automatic restart.
Maintenance-free ball bearings used with motors and designed for at least 40 000 hours operation
Fans are intended for duct mounting in air vent of suitable diameter and at any angle. Mounting to the wall or the ceiling is carried out with brackets.
Speed regulation is available. Smooth or step speed control with a thyristor or autotransformer speed controller. Several fans may be connected to one-speed controller provided that the total power and operating current do not exceed the rated speed controller parameters.