Atlas Copco SF 2+ - Settings for Overload Relay and Fuses

SF 2
+
SF 4
+
SF 6
+
Frequency Voltage Cable size
60 Hz 380 V 3~ 1.5 mm
2
1.5 mm
2
2.5 mm
2
UL/CUL
60 Hz 200 V 3~ AWG 12 AWG 10 AWG 8
60 Hz 230 V 1~ - - -
60 Hz 230 V 3~ AWG 12 AWG 10 AWG 8
60 Hz 460 V 3~ AWG 12 AWG 10 AWG 8
60 Hz 575 V 3~ AWG 14 AWG 14 AWG 14
Table 2:
9.3 Settings for overload relay and fuses
Danger: The indicated fuse value is the maximum value for the short circuit protection of the
starter. The cable size used may specify fuses of a lower value.
Fuse specifications IEC: gL/gG
Fuse specifications CSA: HRC Form II - UL: Class 5
Settings
SF 2
+
SF 2
+
Frequency Voltage Overload relay Maximum fuse
IEC
50 Hz 230 V 1~ 16.4 A 20 A
50 Hz 230 V 3~ 9.7 A 10/16 A
*
50 Hz 400 V 3~ 5.6 A 10 A
50 Hz 400 V + N 3~ 5.6 A 10 A
60 Hz 380 V 3~ 5.6 A 10 A
50/60 Hz 200 V 3~ 10.1 A 16 A
UL/CUL
60 Hz 200 V 3~ 10.1 A 15 A
60 Hz 230 V 1~ 16.3 A 20 A
60 Hz 230 V 3~ 9.1 A 10/15 A
**
60 Hz 460 V 3~ 4.6 A 6 A
60 Hz 575 V 3~ 3.6 A 6 A
Table 3:
*
Maximum fuses according to IEC class gL/gG for Pack and Full-Feature units, respectively.
**
Maximum fuses according to HRCII-C and according to Class CC for Pack and Full-Feature units,
respectively.
Instruction book
78 2920 7219 10