Specification Sheet

STV200/400KInstructionManual•7

Toreducethewiringimpedancetosurgecurrents,itisrecommendedthatthe
phase,neutral(ifrequired),andgroundconductorsaretwistedtogetherand
routedinthesameraceway(conduit).Avoidanysharpbendsintheconductors.
Tip: To maximize system performance, locate the unit as close as possible to the
protected circuit and keep interconnecting wiring less than 5 feet.
Withparallelconnection,thesizeofthewiringtotheSPDunitis
independentoftheprotectedcircuit’sampacity.Forsuggestedwiresize,referto
Table2.
NECArticle285-26requiressurgesuppressorconnectingconductorsto
beatleast#14AWGcopperor#12AWGaluminum.
TheSPDunitconductsminimalcurrentundernormal
operationandveryshortdurationtransientsurgecurrents.
AllSPDunitsmustbeconnectedtothe
loadsideofthemainservicedisconnectortheloadsideofaprotectedcircuit’s
disconnectingmeans.
To
Protected
Loads
SolaHD
Surge
Protective
Device
Protected
Panel
Wire should be
less than 5 feet
and as straight
as possible
Neutral
Phase(s)
Transient
Ground
Safety
Ground
Neutral
Phases
Ground
Figure 1: Typical parallel connection without internal rotary disconnect