Fuji Electric EW100EAG - 3-9 MCCBs for Semiconductor Circuit

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Selection and application
3-8 Selecting an MCCB for capacitor circuit
Table 3-20 (1) MCCB rated current application examples for single-phase capacitor equipment capacity
Rated frequency
(Hz)
Rated voltage
(V)
Rated equipment
capacity (kvar)
Rated current
(A)
Capacitor rating Series reactor 6% MCCB rated
current (A)
MC type
(reference)
(kvar) (μF) (kvar) (mH)
50 200 1.34 6.7 1.43 100 0.09 6.06 10 SC-0
2.67 13.4 2.84 200 0.17 3.04 20 SC-4-0
3.34 16.7 3.55 250 0.21 2.43 30 SC-4-1
4.01 20.1 4.27 300 0.26 2.03 30 SC-5-1
5 25.0 5.32 374 0.32 1.63 40 SC-N1
10 50.0 10.64 748 0.64 0.81 75 SC-N2S
15 75.0 15.96 1,122 0.96 0.54 125 SC-N4
20 100.0 21.28 1,496 1.28 0.41 150 SC-N6
25 125.0 26.60 1,870 1.60 0.33 200 SC-N7
30 150.0 31.91 2,244 1.91 0.27 225 SC-N8
40 200.0 42.55 2,992 2.55 0.20 300 SC-N11
50 250.0 53.19 3,740 3.19 0.16 400 SC-N12
75 375.0 79.79 5,610 4.79 0.11 600 SC-N14
100 500.0 106.38 7,480 6.38 0.08 800 SC-N16
150 750.0 159.57 11,220 9.57 0.05 1200
200 1000.0 212.77 14,961 12.77 0.04 1500
300 1500.0 319.15 22,441 19.15 0.03 2500
400 1.07 2.7 1.14 20 0.07 30.38 5 SC-03
1.60 4.0 1.70 30 0.10 20.32 10 SC-03
2.67 6.7 2.84 50 0.17 12.18 10 SC-0
4.01 10.0 4.27 75 0.26 8.11 15 SC-05
5 12.5 5.32 94 0.32 6.50 20 SC-4-0
10 25.0 10.64 187 0.64 3.25 40 SC-N1
15 37.5 15.96 281 0.96 2.17 60 SC-N2
20 50.0 21.28 374 1.28 1.63 75 SC-N2S
25 62.5 26.60 468 1.60 1.30 100 SC-N3
30 75.0 31.91 561 1.91 1.08 125 SC-N4
40 100.0 42.55 748 2.55 0.81 150 SC-N6
50 125.0 53.19 935 3.19 0.65 200 SC-N7
75 187.5 79.79 1,403 4.79 0.43 300 SC-N11
100 250.0 106.38 1,870 6.38 0.33 400 SC-N14
150 375.0 159.57 2,805 9.57 0.22 600 SC-N16
200 500.0 212.77 3,740 12.77 0.16 800 SC-N16
300 750.0 319.15 5,610 19.15 0.11 1200
60 220 0.97 4.4 1.03 50 0.06 12.17 10 SC-03
1.94 8.8 2.06 100 0.12 6.08 15 SC-0
2.91 13.2 3.10 150 0.19 4.06 20 SC-0
3.88 17.6 4.13 200 0.25 3.04 30 SC-4-1
5 22.7 5.32 258 0.32 2.36 40 SC-N1
10 45.5 10.64 515 0.64 1.18 75 SC-N2S
15 68.2 15.96 773 0.96 0.79 125 SC-N4
20 90.9 21.28 1,030 1.28 0.59 150 SC-N6
25 113.6 26.60 1,288 1.60 0.47 200 SC-N7
30 136.4 31.91 1,546 1.91 0.39 225 SC-N8
40 181.8 42.55 2,061 2.55 0.30 300 SC-N11
50 227.3 53.19 2,576 3.19 0.24 400 SC-N11
75 340.9 79.79 3,864 4.79 0.16 600 SC-N14
100 454.5 106.38 5,152 6.38
0.12 800 SC-N14
150 681.8 159.57 7,728 9.57 0.08 1200
200 909.1 212.77 10,303 12.77 0.06 1500
300 1363.6 319.15 15,455 19.15 0.04 2500
440 1.55 3.5 1.65 20 0.10 30.45 5 SC-03
2.33 5.3 2.48 30 0.15 20.26 10 SC-0
3.11 7.1 3.31 40 0.20 15.18 10 SC-0
3.88 8.8 4.13 50 0.25 12.17 15 SC-4-0
5 11.4 5.32 64 0.32 9.44 20 SC-4-0
10 22.7 10.64 129 0.64 4.72 40 SC-N1
15 34.1 15.96 193 0.96 3.15 60 SC-N2
20 45.5 21.28 258 1.28 2.36 75 SC-N2S
25 56.8 26.60 322 1.60 1.89 100 SC-N3
30 68.2 31.91 386 1.91 1.57 125 SC-N4
40 90.9 42.55 515 2.55 1.18 150 SC-N6
50 113.6 53.19 644 3.19 0.94 175 SC-N7
75 170.5 79.79 966 4.79 0.63 300 SC-N11
100 227.3 106.38 1,288 6.38 0.47 350 SC-N12
150 340.9 159.57 1,932 9.57 0.31 600 SC-N14
200 454.5 212.77 2,576 12.77 0.24 700 SC-N16
300 681.8 319.15 3,864 19.15 0.16 1000
Notes: •TheMCCBratedcurrentshouldbeapprox.150%ofthecapacitorratedcurrent.
 •TheMCCBshouldhaveenoughbreakingcapacitytocutoffshort-circuitcurrentinthecircuit.
 •Useamagneticcontactortoswitchmultiplecapacitorbanksforautomaticpowerfactorregulation.Besuretoinstallseries-connectedreactorsaswell.
 AddupthetotalcapacitanceheretoselecttheratedcurrentforthemainMCCB.
 •Asarule,useseries-connectedreactorstotaling6%oftheimpedance.