12
SYSTEM WIRING
PARALLEL AND SERIES CONNECTIONS
Solar arrays can be connected in Parallel or Series as per the diagrams below, or a combination
of the two. Connecting two identical panels (of the same wattage) in parallel will multiply the total
output current by 2 and keep the system voltage at the same level. Conversely, connecting two
identical panels (of the same wattage) in series will multiply the system voltage by 2 and keep the
output current at the same level. Parallel connections should be made using ‘Y’ connectors available
through REDARC Solar suppliers. Series connections should be made by connecting the negative
connector of one panel to the positive of the next.
+
-
+
-
+
-
+
-
PARALLEL CONNECTION
SERIES CONNECTION
2 × 12 V, 80 W panels
=
1 × 12 V, 160 W array
2 × 12 V, 80 W panels
=
1 × 24 V, 160 W array
WIRING MULTIPLE IDENTICAL PANELS
‘Y’ Connectors available for
second panel installation
Fuse
