6 102619 03/13
Operating Instruction
Mounting
Electricalconnectionconditions
Theconnectiontotheelectricalpowersystem
maybecarriedoutonlybyadequatelytrained
expert.
Caution
Neitherovervoltagenorundervoltageshouldbeexceededby10%.
Thisunitisintendedforoperationonapowersupplynetworkwithamaximumsystem
impedanceZmaxattheinterconnectionpoint(houseserviceline),whichislistedinthe
tablebelowindependenceoftheperformance.Theusershallhavetoensurethattheunit
isoperatedonlyonapowersupplynetworkwhichmeetstheserequirements.Ifandwhen
necessary,thelocalpowersupplycompanycanprovideinformationonthesystemimpe-
dance.
400V-50Hz3Ph. 230V-50Hz1Ph.
Motor out-
put
Nominal
motor cur-
rent
Protection
–star-delta
start
Protection
–direct
start
Power
supply
lead
Fuse Power
supply
lead
Maximum
system
Impedance
Zmax
kW A A A mm² A mm² Ω
1,1 2,6 6 4G2,5 16 3G2,5
1,5 3,5/4,1 10 4G2,5 16 3G2,5 -/0,254
2,2 5,0/6,0 16 4G2,5 16 3G2,5 0,127/
0,143
3,0 6,6/8,1 16 4G2,5 0,118/
0,106
4,0 8,5 16 20 4G2,5/
5G2,5
0,072
5,5 11,5 20 5G2,5 0,102
7,5 15,5 25 5G4
11,0 22,5 35 5G6
15,0 30,0 50 5G10
18,5 36,0 50 5G10
22,0 43,0 63 5G16
30,0 58,0 80 5G25
Tab.1:Characteristicvaluefortheelectricalconnection
Theconductorcrosssectionsmentionedareguidelinevaluesforamaximumleadlengthof50m
atatemperatureof30°C.Useatime-lagfusesor“glfuses”.
• 220/240Vsystemsrequireathree-core1P/N/PEcable.
• 380/400Vsystemsrequireafour-core3P/PEcablefordirectstart.
• 380/400Vsystemsrequireave-core3P/N/PEcableforstar-deltastart.