13.07.2015 Views

Altivar 21 - Schneider Electric

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Mounting and temperature conditionsVentilationWhen mounting the drive inside a Type 12 or IP54 enclosure, follow these ventilation precautions:• Observe the minimum clearance distances shown on page 12.• If necessary, install a stirring fan to circulate the air inside the enclosure, to prevent hot spots in the drive, and to distribute the heatuniformly to surfaces used for convection cooling.CAUTIONCONDENSATIONWhere condensation is possible, keep the drive powered up when the motor is not running, or install thermostatically controlled stripheaters.Failure to follow this instruction can result in injury or equipment damage.17

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