Cable Sizing - DAYLIFF SUNVERTER B Installation & Operating Manual

Main Circuit Terminal Function Description
Terminal Screen
Printing Name
R, S, T
(L, N)
(+), (-)
U, V, W
U, V, W
P1, PB

Cable Sizing

DC Cable (mm )
Model
SVB/1.5M
SVB/2.2M
SVB/4M
SVB/4T
SVB/5.5T
SVB/7.5T
Contact D&S dealer for sizing cables for larger sizes of SVB models
The recommended cable should be used under the
conditions of ambient temperature (≤ 40℃), cable length (≤
100 m) and working current (≤ rated current).
NOTE
SVB/75T-SVB/110T
Function Description
Three-phase (single-phase) power supply input terminal. For
SVB/4M, any two terminals (R,S,T) can be used to connect single
phase supply
Positive and negative terminal of the solar array
Three-phase AC output terminal, connected to pump motor
U and V terminals used for single phase AC output. Terminals
connected to single phase pump motor with capacitor (s).
Safety protection earth terminal (PE), please ensure reliable
grounding
Spare terminal, please do NOT connect them
2
AC Cable (mm )
(+)/(-) L/N R/S/T, U/V/W
2.5 2.5
4 4
6 -
-
2.5
4
4
2
Earth Cable (mm )
2.5
4
6
2.5
4
4
4 15
2
Signal Cable
(mm )
PE
1.5
1.5
2.5
2.5
2.5
2.5
2
1.5