48
Wiring the Inverter
6.2.1 required protective devices and cable cross-sections
Please use the proper upstream circuit breaker to protect the inverter according to the table:
Model
Upstream Circuit Breaker
SOLIVIA 10 TL
20 A
SOLIVIA 15 TL
30 A
SOLIVIA 20 TL
40 A
SOLIVIA 30 TL
60 A
G N L1
L3
L2
N
L1
L2
L3
PE
To solar inverter AC
plug
6.2.1.1 residual Current Devices
The SOLIVIA 10 TL / 15 TL / 20 TL / 30 TL are not capable of feeding in DC residual currents due
to their design. They fulfill this requirement in accordance with DIN VDE 0100-712.
The possibilities of faults were examined without taking the integrated residual-current monitoring
unit (RCMU) into account. When examining these faults in terms of the current valid installation
standards, no danger in combination with a type A upstream residual-current device can occur.
Therefore faults that would otherwise require the use of a type B residual-current device due to
the inverter can be excluded.
The integrated all-pole sensitive residual-current monitoring unit (RCMU) results in additional
safety. For all above mentioned transformerless inverters from Delta RCDs of the type A can be
used.
6.2.1.2 aC Cable requirements
Please use properly sized wire to connect to the correct poles (According to the table below)
Model
aC connector*
Current
rating
Min. / Max.
Cable size
allowed
Min. / Max. wire
size allowed in
screw terminals
Torque of
terminal
screws
10 TL / 15
TL / 20 TL
Amphenol C16-3 ≤ 40 A
11 mm
2
/ 20
mm
2
4 mm
2
/ 8 mm
2
(12 AWG / 9 AWG)
≥ 0.7 Nm (7
kg)
30 TL
Amphenol PPC
AC 24
≤ 60 A
22 mm
2
/ 32
mm
2
10 mm
2
/ 16 mm
2
(8 AWG / 6 AWG)
≥ 0.9 Nm
(10 kg)
* Please follow up with Amphenol for the latest information regarding the AC connectors
Table 6.1.: Cable cross sections and torques for AC connectors
