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External rotor motor

Design

Fixed blades impeller, designed to handle large volumes of air against low resistance to flow. Impeller are designed for maximum efficiency and low noise operation, Blade design include sickle or profiled.

These axial fans are powered by external rotor motor, speed controllable by frequency or voltage. Impeller are fitted directly onto the motor for maximum efficiency and low-profile compact assembly.

Available with flat guard, basket guard, square or circular wall plate or circular spigotted flanges.

Application

Building ventilation, portable cooling fans or ‘man coolers’, heat exchangers, refrigeration coils, solarium equipment, electronic enclosures, condenser or evaporator cooling, heating cooling and ventilating applications

Technical Specification

Specification Description
Mounting

Wall plate (square or circular), flanged circular rings, basket or flat guard.

Features

Space saving construction, quiet operation, Simple speed control (triac or Voltage)

Impellers

Profiled or \'sickle\' blades, in plastic, steel or aluminium

Protection

IP44 to IP55

Supply

Single and three phase models

Motor Type

External rotor motor, in the airstream

Pressure

Low

Approvals

UL, CE (All compliant with ErP 2015 directive) 

Size

Ø170 to 1000 impeller

Flow Rate

Up to 33,000m³/h

Maximum temperature

+50°C to +70°C depending on models

Options

115Volts 50/60Hz, High IP rating