Siemens SINAMICS V20 - Page 7

SINAMICS V20 Inverter
A5E37281078-003, 05/2016
7
Branch circuit protection according to IEC standards
Branch circuit protection with semiconductor fuses (IEC)
Frame
size
Inverter power rating
(kW)
IEC-compliant fuse
(Siemens)
Frame size
Inverter power rating
(kW)
IEC-compliant fuse
(Siemens)
400 V A 0.37 to 1.1 3NA3801 (6 A) 230 V AA/AB/A 0.12 to 0.55 3NA3803 (10 A)
1.5 3NA3803 (10 A)
2.2 3NA3805 (16 A) 0.75 3NA3805 (16 A)
B 3.0 3NA3805 (16 A) B 1.1 3NA3807 (20 A)
4.0 3NA3807 (20 A) 1.5 3NA3812 (32 A)
C 5.5 3NA3812 (32 A) C 2.2 3NA3814 (35 A)
D 7.5 to 15 3NA3822 (63 A)
E 18.5 3NA3022 (63 A)
22 3NA3024 (80 A) 3.0 3NA3820 (50 A)
Branch circuit protection with circuit breakers and Type E combination motor controllers
For detailed information about the permissible types, see the following tables in accordance with UL/cUL standards.
Branch circuit protection according to UL/cUL standards
You may operate the SINAMICS V20 on a branch circuit with the specified short-circuit current rating (SCCR) provided the
specified branch-circuit protection device is installed as detailed in the following tables.
Branch circuit protection with non-semiconductor fuses of Class J, T, CC, G or CF (JDDZ1/JDDZ7)
Frame size
Inverter power rating
(kW)
Maximum rated current of fuse
(A)
SCCR
Minimum enclosure volume
(m
3
/cu. in.)
1)
400 V A 0.37 to 2.2 15 100 kA, 480 VAC 0.007/427
B 3.0 to 4.0 20 0.012/732
C 5.5 30 0.019/1159
D 7.5 to 15 60 0.230/14035
E 18.5 80 0.370/22578
22 100
230 V AA to
AB
0.12 to 0.75 15 100 kA, 240 VAC -
A 0.12 to 0.75 15 -
B 1.1 to 1.5 30
C 2.2 to 3.0 50
1)
Unventilated enclosure of minimum volume as specified in the table above is required except for 230 V FSAA/FSAB and
inverters protected by Class J or Class CC fuses. There is no minimum enclosure volume requirement for 230 V
FSAA/FSAB.