With cable diameters greater than 21 mm, the M32 screw joint must be replaced
by an M32 screw joint with a larger clamping area – item number: 42,0407,0780
– strain-relief device M32 x 1.5 KB 18–25.
Cross section of
the DC cable
Cable diameter for the strain-relief device: max. 9 mm.
Cable diameter for the connection to the push-in terminal: max. 6 mm
IMPORTANT!
For double-insulated cables with a cable diameter over 6 mm, the external insu-
lation layer must be removed to connect to the push-in terminal.
Maximum altern-
ating current
fuse protection
NOTE!
National regulations, the grid operat-
or's specifications or other factors
may require a residual current circuit
breaker in the AC connection lead.
For this situation, a type A residual-
current circuit breaker is generally ad-
equate. Nevertheless, false alarms can
be triggered for the type A residual-
current circuit breaker in individual
cases and depending on local condi-
tions. For this reason, in accordance
with national legislation, Fronius re-
commends that a residual-current cir-
cuit breaker with a tripping current of
at least 100 mA suitable for frequency
converters be used.
IMPORTANT!
The inverter can be used with max. an
automatic circuit breaker C 32 A.
Inverter Phase
s
AC out-
put
Maximum
fuse rating
Recommen-
ded fuse
rating
Fronius Symo GEN24 6 kW 3 6000 W C 32 A C 16 A
Fronius Symo GEN24 8 kW 3 8000 W C 32 A C 25 A
63
EN
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