11 Technical Data
SMA Solar Technology AG
50
STPS60-IA-xx-13
Installation Manual
11.5 Specifications for Grid
Protection
11.6 Technical Data of the
Communication Interface
1)
(see Section 5.9 “Ethernet Connections”, page 30)
Parameters
Specification
Maximum inverter current, I
ACmax
109 A
Type of thermal fuse to be used gR (IEC 60269-1)
160 A
Miniature circuit breaker to be used type B or C
160 A
Maximum fuse rating
160 A
INFORMATION
Comply with the standards and directives that apply
at the installation location.
Interface
Parameters
Parameter details
Specification
Ethernet
Cable
Cable sheath diameter ( ⌀ )
2 x 5 to 7 mm
Cable typ
STP cable (Shielded Twisted Pair,
CAT 5e or SFTP CAT 5e)
1)
Cable characteristic
impedance
100 Ω to 120 Ω
RJ45 connector: 2 pcs. RJ45
for Ethernet
Wire size
0.14 to 0.25 mm² (depending on
the design of the RJ45 plug)
Cable shield termination
Via RJ45 plug
Galvanic interface insulation
Yes, 500 Vrms
Direct protection against
contact
Double/reinforced insulation
Yes
Short-circuit protection
Yes
Communication
Network topology
Star connection, ring connection
and daisy chain
Cable
Max. cable length between
inverters
100 m
Max. number of inverters
Per SMA Inverter Manager
20
