Technical data 3192. The motor and control cables are selected as specified in this manual.3. The drive is installed according to the instructions given in this manual.4. Motor cable length maximum 30 m (100 ft) with 4 kHz switching frequency.WARNING! In a domestic environment, this product may cause radio inference, inwhich case supplementary mitigation measures may be required. Category C3The immunity performance of the drive complies with the demands of IEC/EN 61800-3, second environment (see page 318 for IEC/EN 61800-3 definitions).The emission limits are complied with the following provisions:1. The internal EMC filter is connected (the metal screw at EMC is in place) or theoptional EMC filter is installed.2. The motor and control cables are selected as specified in this manual.3. The drive is installed according to the instructions given in this manual.4. With the internal EMC filter: motor cable length 30 m (100 ft) with 4 kHz switchingfrequency.WARNING! A drive of category C3 is not intended to be used on a low-voltage publicnetwork which supplies domestic premises. Radio frequency interference is expectedif the drive is used on such a network.Note: It is not allowed to install a drive with the internal EMC filter connected on IT(ungrounded) systems. The supply network becomes connected to ground potentialthrough the EMC filter capacitors which may cause danger or damage the drive.Note: It is not allowed to install a drive with the internal EMC filter connected on acorner grounded TN system as this would damage the drive.UL markingSee the type designation label for the valid markings of your drive.The UL mark is attached to the drive to verify that it meets UL requirements. UL checklistInput power connection – See section Electric power network specification on page314.Disconnecting device (disconnecting means) – See Selecting the supplydisconnecting device (disconnecting means) on page 35.Ambient conditions – The drives are to be used in a heated indoor controlledenvironment. See section Ambient conditions on page 316 for specific limits.Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com