Specifications

VärmeKabelTeknik Switchpointheating
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7
Assemblyinstruction Controlcubicle
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Thecontrolcabinetshouldbemountedasclosetothe
switchaspossibletoavoidhighcostsforsuppliestothe
switchpointheatingelementsandunnecessarilylong
sensorcablescausingdeviationsinthevaluesreadoff.
Connectionstotheelementsaremadeusing8/4
conductorsinrubberwithseparateconductorsfor
each
element.
SincethecontrolcabinetisfedbyanormalEkki4/5x
6mm²itismoreeconomicaltochoosealongerdistance
fortheincomingsupply.
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Thecontrolcabinetissuppliedinternallycompleted.We
supplytheconnectioncablebetweenthecabinetand
theelementinthestandardlengthof10m.Ifthe
distanceexceedsthestandardlength,anextra
connectionleadcanbejointedinajointingboxsupplied
byus.
Sensorswithcablesofrequired
lengthshouldbe
ordered.
Elementcablesshouldbeconnectedtoterminalblocks
accordingtothecircuitdiagram.
Sensorcablesareconnecteddirectlytothesensorcard.
Thecabinetsupplycabletothecabinetisconnected
directlytothelinebreakerandzero/earthterminal
block.
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Sensorsaremountedontheundersideoftherailatthe
tipofthemovingrail;thesensorisfixedbytightening
theboltofthespecialfasteningdevice.Thesensor
shouldbeplacednexttoasleeperandthesensorcable
inprotectivetubingfixedtothesideof
thesleeperby
clips.
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Thecontrolcabinetisconstructedaroundathyristor
controlwitheightchannels(expandable).Tothe
thyristorcontrolbelongacontrolcardandoneormore
eight‐channelsensorcards.Anumberofaccessoriescan
beconnectedtothesensorcards:
 Temperaturesensor(ThermoelementtypeK)
 Currenttransformer
forcurrentmeasuring
 Moisturesensoretc.
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