WEG CFW900 - Fuses, Circuit Breakers and Power Supply Capacity

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INSTALLATIONANDCONNECTION
PowerTerminalsWiresize
Model
Terminals
Screw
(type)
Recommended
Torque
N.m(Ibf.in)
mm²AWGTerminaltype
Power
(1)
M5
(pozidriv)
25.03Wireferrule
CFW900C70P0T4
Grounding
(2)
M4
(phillips)
3.7(32.8)
16.04Lug
Power
(1)
M8
(Hexagonal/Phillips
screw)
15(132.8)351Lug
CFW900D90P0T4
Grounding
(2)
M6
(Hexagonal/Phillips
screw)
5(44.2)353
Power
(1)
M8
(Hexagonal/Phillips
screw)
15(132.8)702/0Lug
CFW900D0123T4
Grounding
(2)
M6
(Hexagonal/Phillips
screw)
5(44.2)353
Power
(1)
M8
(Hexagonal/Phillips
screw)
15(132.8)703/0Lug
CFW900D0146T4
Grounding
(2)
M6
(Hexagonal/Phillips
screw)
5(44.2)353
Power
(1)
M10
(Hexagonalscrew)
30(265.5)
HD:95ou2x25
ND:95ou2x35
HD:2/0ou2x3
ND:4/0ou2x2
CFW900E0172T4
Grounding
(2)
M5eM8
(Hexagonal/Phillips
screw)
M5:3.5(31.0)
M8:15(132.8)
501/0
Lug
Power
(1)
M10
(Hexagonalscrew)
30(265.5)
HD:95ou2x35
ND:120ou2x50
HD:3/0ou2x3
ND:250ou2x1
CFW900E0200T4
Grounding
(2)
M5eM8
(Hexagonal/Phillips
screw)
M5:3.5(31.0)
M8:15(132.8)
702/0
Lug
Power
(1)
M10
(Hexagonalscrew)
30(265.5)HD:120ou
2x35
ND:2x70
HD:4/0ou2x1
ND:2x1/0
CFW900E0240T4
Grounding
(2)
M5eM8
(Hexagonal/Phillips
screw)
M5:3.5(31.0)
M8:15(132.8)
952/0
Lug
(1)
R/L1;S/L2;T/L3;U/T1;V/T2;W/T3;DC+;DC-.
(2)
PE.
3.2.3Fuses,CircuitBreakersandPowerSupplyCapacity
TheCFW900issuitableforuseincircuitswithshortcircuitcapacityofupto65kA,whichvaluevariesaccording
tothetypeofprotectionused(fuseorcircuitbreaker)andcertificationconsidered(ULorCE).Formoredetails,
seeTable3.5,Table3.6andTable3.7.
ForIECconformity,fuseswithratedcurrentandI
2
tlessthanorequaltothevaluespresentedintheTable3.5
(thistablealsopresentssuggestionsforWEGfuses)orcircuitbreakersintheinverterpowersupplyaccording
tothespecificationspresentedin
Table3.7.Whenacircuitbreakerisused,itisnecessarytoinstalltheinverter
insideametalpanelwithminimumdimensionsaccordingtothevaluesshowninTable3.7. Somemodelsof
fused-protectedinvertersalsorequiretheuseofametalpanel-formoredetailssee
Table3.5.
ForULconformity,fusesmustbeusedintheinverterpowersupplyasshowninTable3.6orcircuitbreakersin
theinverterpowersupplyasshowninTable3.7.Payattentiontotheuseofapanel,whichisrequiredforsome
invertermodelsprotectedwithfusesandforallinvertermodelsprotectedbycircuitbreaker.
CFW900|25