3. Installation
3.1 Prerequisites for the location of use
3.1.2 Technical conditions for acceptance by Underwriters Laboratories Inc. (UL)
Conditions for Underwriters Laboratories Inc. (UL) certification
The following conditions must be met in order for the certification as per UL 61010-2-
201 to apply:
AmbientTemperature0°Cto50°C
Altitudeupto2000m
OvervoltageCategoryII
Pollutiondegree2
Supplyvoltagefluctuationsupto-20%/+25%ofthenominalvoltage
TyperatingUsedintype4Xortype12enclousures,Indooruseonly,drylocationsonly
MaximumRelativehumidity95%fortemperaturesupto50°Cdecreasinglinearlyto50%
relativehumidityat40°C.
MeansofprotectionClassIII(SELVorPELV)
Thepanelsshallbemountedinasuitablefireenclousurewhichshallbeservingasapro-
tectionagainstthespreadoffire.
The torque used to tighten the screw terminals on the plug-in connection for the supply
voltage must not exceed 0.6 ... 0.8 Nm (5 ... 7 lb-in).
Required only for XV-3.3-..-.E.-...-..XV300 units with a SmartWire-DT® connection.
The SmartWire-DT® master interface's U
Aux
supply voltage must be externally pro-
tected against overcurrent and short-circuits with the following:
l Miniature circuit-breaker 24 V
DC
, rated operational current 2 A, trip type Z
l or a 2 A fuse.
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XV30012/15 MN048017 ENwww.eaton.eu