Danfoss iC2-Micro Series - General Technical Data; Protection and Features; Grid Side

Design Guide | iC2-Micro Frequency Converters Specifications
Table 18: Mains Supply 3x380–480 V AC, MA03a–MA05a (continued)
Continuous (3x440–480 V) [A] 11 14 21 27 34 40
Intermittent (3x440–480 V) [A] 16.5 21.3 31.5 40.5 51 60
Maximum cable size
(Mains, motor) [mm
2
/AWG] 4/10 16/6
Maximum input current
Continuous (3x380–440 V) [A] 19.2 24.8 33 42 34.7 41.2
Intermittent (3x380–440 V) [A] 27.4 36.3 47.5 60 49 57.6
Continuous (3x440–480 V) [A] 16.6 21.4 29 36 31.5 37.5
Intermittent (3x440–480 V) [A] 23.6 30.1 41 52 44 53
EMC filter type C2/C4
Environment
Power loss [W]
(1)(1)
104 127 213 285 358 466
Efficiency [%]
(1)
98.3 98.4 98.2 98.3 98.2 98
1) The value is measured at 100% rated torque-producing current and 90% rated motor stator frequency according to IEC 61800-9-2 and EN 50598-2.
4.2 General Technical Data
4.2.1 Protection and Features
l Electronic motor thermal protection against overload.
l Temperature monitoring of the heat sink ensures that the drive trips if there is overtemperature.
l The drive is protected against short circuits between motor terminals U, V, W.
l When a motor phase is missing, the drive trips and issues a fault.
l When a mains phase is missing, the drive trips or issues a warning (depending on the load).
l Monitoring of the DC-link voltage ensures that the drive trips when the DC-link voltage is too low or too high.
l The drive is protected against ground faults on motor terminals U, V, W.
4.2.2 Grid Side
Table 19: Mains Supply
Function Data
1x100–120 V AC ±10%, -15% at reduced torque performance, depending on motor type.
1x200–240VAC ±10%, -15% at reduced torque performance, depending on motor type.
Supply voltage
3x380–480VAC ±10%, -15% at reduced torque performance, depending on motor type.
Grid types TN, TT, IT, Grounded Delta grids. For more information, see 7.3.1 Grid Types. For details
on the parameters related to grid types, refer to the application guide.
Supply frequency 50/60Hz ±5%
Maximum temporary imbalance between
mains phases
3% of rated voltage, depending on grid impedance.
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