Specifications

Maxiva ULX Series
November 11, 2013
2‐11
888‐2628‐300 WARNING:Disconnectprimarypowerpriortoservicing.
Copyright©2013,HarrisBroadcast
2.8.1 SafetyGround
AsafetygroundwireisrequiredforeachACmainsinputandtheyshouldbeconnectedtothecoppergroundstud
showninFigure2‐2.Thegroundingstudonthispanelisdirectlyattachedtothegroundstrapthatrunsfromthe
groundingblocklocatedonthecabinettoptothegroundblocklocatedinsidetherearofthecabinetonthefloor.
Figure 2-2 Safety Ground Connections Inside Cabinet (rear)
TheMaxivaULXSeriestransmittersrequire3phase208/220/240Vacor3phase380/400/415Vacat50/60Hz.Voltage,
frequencyandconfiguration(DeltaorWYE)shouldbeidentifiedatthetimeorderisplaced.
Caution
IF VOLTAGE VARIATIONS IN EXCESS OF ±10% ARE ANTICIPATED, THE AC
MAINS INPUT MUST BE EQUIPPED WITH AUTOMATIC VOLTAGE
REGULATORS (OPTIONAL EQUIPMENT) CAPABLE OF CORRECTING THE
MAINS VOLTAGE.
2.8.2 ACConnectionsProcedure
Note
It is important that the correct voltage, frequency and connection type be applied as the MOV (metal oxide
varistor) board components/ jumpers, IPA backplane jumpers, and PA backplane jumpers are configured
differently for delta or wye inputs.
STEP 1 RoutetheprimaryACconduit(s)throughclampsatthetopofthetransmitter
cabinet.

Thetopofthetransmittercabinethaspre‐cutholesforclampstosecure
conduittothecabinetasshownintheoutlinedrawing.
Note
For the following two steps the access cover at the top of the transmitter and the panel covering the circuit
breakers in the top rear of the transmitter should be removed to facilitate connection of the AC mains to
the transmitter.
STEP 2 ConnecttheACwirestotheprimaryACterminalblocksCB23andCB24(for
higherpowerlevelstwoACinputsarerequired).Refertothewiringdiagram
fordetailsonspecificpowerlevels.TheACinputwireswillconnecttoCB23
andCB24locatedbehindtheaccessplateontop
rearofthecabinet(another
SafetyGround
Connections
ACMains
Connections