SMA PT100U-NR - Manual (Page 9)

SMA Solar Technology AG Installation and Electrical Connection
Installation Guide PT100UNR-IEN083510 9
Indoors
If you protect the cable against UV radiation for use outdoors by means of a suitable cable channel,
you can also use a non-UV-resistant (indoor) cable with the basic properties mentioned above.
We recommend the following cable types:
• Lapp cable: Unitronic LiYY 4 x 0.5mm², order no.: 0028 504
• UL-listed Lapp cable: UNITRONIC LiYY UL/CSA 4 x AWG22/7, order no.: 0022 604
• Helukabel: TRONIC LiYY 4 x 0.5mm², order no.: 18087
4.2 Selecting Where to Install
• The ambient temperature sensor must be installed
with the cable gland pointing downwards in order to
prevent water from accumulating on the cable gland.
• Protect the ambient temperature sensor from severe
contamination and spray.
• See image for the recommended ambient
temperature sensor alignment.
• Select an installation site which is in shade throughout
the entire day.
• Make sure that heat cannot accumulate at the
installation site.
• Take into account the maximum cable length of 30m
(4-wire system).