Grundfos CRNE - Protection against Power Supply Voltage Transients; Motor Protection; Cable Requirements

6.7.3.1 Cable cross-section data for MGE motors
3 × 380-500 V, 50/60 Hz, Model J
Speed
[rpm]
Power P2
[kW]
Supply voltage
[V]
Nominal
current
[A]
Cable cross-
section
[mm
2
]
Cable cross-
section
[AWG]
1450-2200
2.2 3 × 380-500 4.3 - 3.6 1.5 14
3.0 3 × 380-500 5.8 - 4.6 1.5 14
4.0 3 × 380-500 7.7 - 6.0 2.5 14
5.5 3 × 380-500 10.5 - 8.4 2.5 14
7.5 3 × 380-500 14.1 - 11.1 4 12
2900-4000
3.0 3 × 380-500 5.8 - 4.6 1.5 14
4.0 3 × 380-500 7.7 - 6.0 2.5 14
5.5 3 × 380-500 10.5 - 8.4 2.5 14
7.5 3 × 380-500 14.1 - 11.1 4 12
11.0 3 × 380-500 20.3 - 16.0 6 10
4000-5900
3.0 3 × 380-500 5.8 - 4.6 1.5 14
4.0 3 × 380-500 7.7 - 6.0 2.5 14
5.5 3 × 380-500 10.5 - 8.4 2.5 14
7.5 3 × 380-500 14.1 - 11.1 4 12
11.0 3 × 380-500 20.3 - 16.0 6 10
3 × 200-240 V, 50/60 Hz, Model J
Speed
[rpm]
Power P2
[kW]
Supply voltage
[V]
Nominal
current
[A]
Cable cross-
section
[mm
2
]
Cable cross-
section
[AWG]
3400-4000
2.2 3 × 200-240 7.8 - 6.5 2.5 14
3 3 × 200-240 10.5 - 8.8 2.5 14
4 3 × 200-240 14.1 - 11.8 4 12
5.5 3 × 200-240 19.6 - 16.3 6 10
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