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vacon 100 installation manual - VEM motors Finland Oy

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Power cabling <strong>vacon</strong> • 304.1.1.4 Cable and fuse sizes, frames MR7 to MR9, North AmericaThe recommended fuse types are gG/gL (IEC 60269-1) or class T (UL & CSA). The fuse voltagerating should be selected according to the supply network. The final selection should be madeaccording to local regulations, cable <strong>installation</strong> conditions and cable specification. Bigger fusesthan what is recommended below shall not be used.Check that the fuse operating time is less than 0.4 seconds. Operating time depends on usedfuse type and impedance of the supply circuit. Consult the factory about faster fuses. Vacon offersrecommendations also for high speed J (UL & CSA ), aR (UL recognized, IEC 60269-4) andgS (IEC 60269-4) fuse ranges.FrameMR7MR8MR9Type0075 20072 40088 20087 40105 20105 40140 20140 40170 20170 40205 20205 40261 20261 40310 20310 475,072,088,087,0I L[A]Fuse(class T)[A]Mains, motorand groundcableCuTerminal cable sizeMain terminalEarth terminal<strong>100</strong> AWG2 AWG9-AWG2/0 AWG9-AWG2/0110 AWG1 AWG9-AWG2/0 AWG9-AWG2/0105,0 150 AWG1/0 AWG9-AWG2/0 AWG9-AWG2/0140,0 200 AWG3/0 AWG1-350 kcmil AWG1-350 kcmil170,0 225 250 kcmil AWG1-350 kcmil AWG1-350 kcmil205,0 250 350 kcmil AWG1-350 kcmil AWG1-350 kcmil261,0 350 2*250 kcmil AWG1-350 kcmil AWG1-350 kcmil310,0 400 2*350 kcmil AWG1-350 kcmil AWG1-350 kcmilTable 18. Cable and fuse sizes for Vacon <strong>100</strong> (MR7 to MR9)The cable dimensioning is based on the criteria of the Underwriters’ Laboratories UL508C:Cables mustbe PVC-isolated; Max ambient temperature +30°C, max temperature of cable surface +70°C; Use onlycables with concentric copper shield; Max number of parallel cables is 9.When using cables in parallel, NOTE HOWEVER that the requirements of both the cross-sectional areaand the max number of cables must be observed.For important information on the requirements of the earthing conductor, see standard Underwriters’Laboratories UL508C.For the correction factors for each temperature, see the instructions of standard Underwriters’ LaboratoriesUL508C.4.2 Brake resistor cablesVacon AC drives are equipped with terminals for an optional external brake resistor. These terminalsare marked with R+ and R- (MR4-MR6) or DC+/R+ and R- (MR7 and bigger).24-hour support +358 (0)201 212 575 • Email: <strong>vacon</strong>@<strong>vacon</strong>.com4

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