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The products > Reactive energy compensation > Low voltage capacitors and capacitor banks > Protective circuit breaker and connection cable selection table for capacitors |
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| Three-phase 400 V and 440 V capacitor Nominal power (kvar) | Three-phase
circuit breaker Rating/Thermal setting (A) |
Cables minimum cross-section per phase |
|
| Cu (mm2) | Al (mm2) | ||
| 10 | 20/20 | 6 | 10 |
| 20 | 40/40 | 10 | 16 |
| 30 | 63/60 | 16 | 25 |
| 40 | 80/80 | 25 | 35 |
| 50 | 100/100 | 35 | 50 |
| 60 | 125/125 | 35 | 50 |
| 70 | 160/140 | 35 | 50 |
| 80 | 160/160 | 50 | 70 |
| 90 | 200/180 | 50 | 70 |
| 100 | 200/200 | 70 | 95 |
| 125 | 250/250 | 70 | 95 |
| 150 | 400/300 | 95 | 120 |
| 175 | 400/350 | 120 | 185 |
| 200 | 400/400 | 150 | 240 |
| 225 | 630/450 | 150 | 240 |
| 250 | 630/500 | 185 | 2 x 120 |
| 275 | 630/550 | 185 | 2 x 120 |
| 300 | 630/600 | 2 x 95 | 2 x 150 |
| 325 | 630/630 | 2 x 95 | 2 x 150 |
| 350 | 800/700 | 2 x 120 | 2 x 185 |
| 375 | 800/750 | 2 x 120 | 2 x 185 |
| 400 | 800/800 | 2 x 150 | 2 x 240 |
| 450 | 1000/900 | 2 x 150 | 2 x 240 |
| 500 | 1000/1000 | 2 x 185 | 4 x 150 |
| 550 | 1250/1100 | 2 x 185 | 4 x 150 |
| 600 | 1250/1200 | 4 x 120 | 4 x 185 |
| 650 | 1250/1250 | 4 x 120 | 4 x 185 |
| 700 | 1600/1400 | 4 x 150 | 4 x 240 |
| 750 | 1600/1500 | 4 x 150 | 4 x 240 |
| 800 | 1600/1600 | 4 x 150 | 4 x 240 |
| 850 | 2000/1700 | 4 x 150 | 4 x 240 |
| 900 | 2000/1800 | 4 x 150 | 4 x 240 |
| 950 | 2000/1900 | 4 x 185 | 4 x 300 |
| 1000 | 2000/2000 | 4 x 185 | 4 x 300 |
NOTE: The cable cross-section indicated in this table is the minimum recommended section. It does not take into account additional correcting factors (fitting method, temperature, long distances, etc.). The calculations are for unipolar cables mounted in ambient air at 30°C.
