GEA Bock HG44e Series - Electrical connection; Information for contactor and motor contactor selection; Standard motor, design for direct or part winding start

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96416-08.2020-DGbFEIRu
Designationonthenameplate Stickerontheterminalbox
Y/YY
Compressorswiththismarkingaresuitablefordirectorpartialwindingstart.Themotorwindingis
subdividedintotwoparts:Partwinding1=50%andpartwinding2=50%.Thiswindingdivision
reducesthestart-upcurrentneededforapartwindingstarttoapprox.50%ofthatforadirectstart.
INFO Amechanicalunloadedstartwithbypasssolenoidvalveis 
notrequired.
7 | Electrical connection
7.1 Informationforcontactorandmotorcontactorselection
Allprotectionequipment,switchingandmonitoringdevicesmustcomplywiththelocalsafetyregula-
tionsandestablishedspecications(e.g.VDE)andregulationsaswellasthemanufacturer’sspeci-
cations.Motorprotectionswitchesarerequired!Motorcontactors,feedlines,fusesandmotor
protectionswitchesmustberatedaccordingtothemaximumoperating current (seenameplate).
Formotorprotection,useacurrent-independent,time-delayedoverloadprotectiondeviceformonitor-
ingallthreephases.Adjusttheoverloadprotectiondevicesothatitmustbeactuatedwithin2hours
at1.2timesthemaximumworkingcurrent.
INFO
Connectthecompressormotorinaccordancewiththecircuitdiagram
(seeinsideofterminalbox).
Usesuitablecableentrypointofthecorrectprotectiontype(see
nameplate)forroutingcablesintotheterminalbox.Insertthestrain
reliefsandpreventchafemarksonthecables.
Comparethevoltageandfrequencyvalueswiththedataforthe
mainspowersupply.
Onlyconnectthemotorifthesevaluesarethesame.
DANGER Riskofelectricshock!Highvoltage!
Onlycarryoutworkwhentheelectricalsystemisdisconnected
fromthepowersupply!
7 Electricalconnection
ATTENTION Whenattaching accessorieswith anelectrical cable, a minimum
bendingradiusof3xthecablediametermustbemaintainedfor
layingthecable.
7.2 Standardmotor,designfordirectorpartwindingstart