Fans by Fantech Electronic Catalogue

2016

REFERENCE INFORMATION

O-7

MOTOR INFORMATION

FANS FOR Ex d AND Ex e

APPLICATIONS

Fans for Ex d and Ex e applications, or indeed any hazardous application, can be

constructed of special materials and incorporate special features.

Anti-static impellers and earthing leads are just some of the features we can provide.

ELECTRONICALLY COMMUTATED (EC) DC MOTORS

INTRODUCTION

The Electronically Commutated DC motors featured in this catalogue are external-rotor

DC motors which are suitable for AC mains supply. These motors have no wear and

tear elements such as collectors or carbon brushes which used to be an undesirable

component of DC motors and would require regular maintenance. The EC units consist

of a brushless DC external-rotor motor with an EC controller that commutates the

current in the motor windings electronically. The EC controller monitors the motor and

provides interfaces for easy control of the drive. EC motors provide a high level of

motor efficiency and carry on-board features that offers almost limitless flexibility in

terms of automatic and manual fan speed control.

TEMPERATURE RANGE

These motors are generally suitable for operating in ambients from -25ºC to +60ºC.

ENCLOSURE STANDARD

The motor enclosure standard is IP54 in accordance with the appropriate Standards.

ELECTRICAL DETAILS

Motors are suitable for 240V or 415V, 50 or 60Hz supply. These motors should not be

speed controlled by VSD or VA controller.

Insulation; Motor insulation is Class F with a 60ºC winding temperature rise.

BEARINGS

Motors are fitted with sealed-for-life maintenance free bearings.

PARAMETER SETTINGS

Parameters of the EC fans are programmed in our factory for best possible operation to

suit the specific application requirements. It is necessary for the mechanical designer or

contractor to provide details as to the application and system control requirements at

the time of order.

PROTECTION

The EC motors feature their own integral current overload and over-temperature

protection. No other electrical protection is required with these units.