Fuji Electric BW32AAG - 3-5 Motor Circuit Applications

55
3
Selection and application
3-4 Wiring protection
Table 3-11a PVC wiring protected by rated breaking capacity (for short circuits)
Notes: 1 Wiring selection consideration: I
2
t of the wiring t maximum I
2
t of the MCCB (ELCB)
(Short-time wiring tempereture:160°C maximum, continuous region:70°C), and rated current of the wiring t rated current of the MCCB (ELCB).
2 The let-through current(I
2
t) is lower the MCCBs (ELCBs) in the table because short-circuit current can be limited by factors like wiring impedance in an actual
circuit. This lowers thermal stress on the wiring.
MCCB ELCB Rated current (A)
230V
MCCB (ELCB) PVC cable (Note: 1)
Icu
(kA)
Peak let-
through
current
(kA: peak)
Max. let-
through
current I
2
t
(u10
s
A
2
s)
Permissible I
2
t
(u10
s
A
2
s)
Minimum wire
size (mm
2
)
Permissible
current (A)
BW32AAG EW32AAG 3 (MCCB only), 5, 10, 15, 20, 30, 32 2.5 3.5 0.06 0.082 2.5 18
BW50AAG EW50AAG 5, 10, 15, 20, 30, 32, 40, 50 2.5 3.5 0.06 0.082 2.5 18
BW100AAG EW100AAG 60, 63, 75, 100 5.0 6.0 0.145 0.21 4 24
EW32EAG 5, 10, 15, 20, 30, 32 2.5 3.5 0.06 0.082 2.5 18
BW50EAG EW50EAG 5, 10, 15, 20, 30, 32, 40, 50 5.0 6.0 0.145 0.21 4 24
BW63EAG EW63EAG 60, 63 5.0 6.0 0.145 0.21 4 24
BW100EAG EW100EAG 50, 60, 63, 75, 100 25 12.0 0.50 1.31 10 42
BW160EAG EW160EAG 125, 150, 160 36 25.0 1.70 3.35 16 56
BW250EAG EW250EAG 175, 200, 225, 250 36 25.0 1.70 3.35 16 56
BW400EAG EW400EAG 250, 300, 350, 400 50 33.5 2.58 3.35 16 56
BW630EAG EW630EAG 500, 600, 630 50 47.0 5.10 8.2 25 71
BW800EAG EW800EAG 700, 800 50 47.0 5.10 8.2 25 71
BW125JAG EW125JAG 15 50 4.65 0.033 0.082 2.5 18
20 50 5.7 0.044 0.082 2.5 18
30 50 6.95 0.06 0.082 2.5 18
40, 50, 60, 75, 100, 125 50 20.0 0.62 1.31 10 42
BW160JAG EW160JAG 125, 150, 160 50 24.5 1.28 1.31 10 42
BW250JAG EW250JAG 175, 200, 225, 250 50 24.5 1.28 1.31 10 42
BW32SAG EW32SAG 3, 5, 10, 15, 20, 30, 32 5.0 6.0 0.145 0.21 4 24
BW50SAG EW50SAG 5, 10, 15, 20, 30, 32, 40, 50 10 8.5 0.27 0.471 6 30
BW63SAG EW63SAG 60, 63 10 8.5 0.27 0.471 6 30
BW125SAG EW125SAG 15 85 5.035 0.036 0.082 2.5 18
20 85 6.26 0.048 0.082 2.5 18
30 85 7.685 0.067 0.082 2.5 18
40, 50, 60, 75, 100, 125 85 23.5 0.746 1.31 10 42
BW160SAG EW160SAG 125, 150, 160 85 29.5 1.504 3.35 16 56
BW250SAG EW250SAG 175, 200, 225, 250 85 29.5 1.504 3.35 16 56
BW400SAG EW400SAG 250, 300, 350, 400 85 40.0 2.65 3.35 16 56
BW50RAG EW50RAG 10, 15, 20, 30, 32, 40, 50 25 12.0 0.50 1.31 10 42
BW63RAG EW63RAG 60, 63 25 12.0 0.50 1.31 10 42
BW125RAG EW125RAG 15 100 5.2 0.037 1.31 10 42
20 100 6.5 0.05 1.31 10 42
30 100 8.0 0.07 1.31 10 42
40, 50, 60, 75, 100, 125 100 25.0 0.08 1.31 10 42
BW160RAG EW160RAG 125, 150, 160 100 31.5 1.60 3.35 16 56
BW250RAG EW250RAG 175, 200, 225, 250 100 31.5 1.60 3.35 16 56
BW400RAG EW400RAG 250, 300, 350, 400 100 42.0 3.02 3.35 16 56
BW630RAG EW630RAG 500, 600, 630 100 61.5 6.50 8.18 25 71
BW800RAG EW800RAG 700, 800 100 61.5 6.50 8.18 25 71
BW50HAG 15 125 5.40 0.039 0.082 2.5 18
20 125 6.8 0.051 0.082 2.5 18
30 125 8.3 0.07 0.082 2.5 18
40, 50 125 26.5 0.85 1.31
10 42
BW125HAG 15 125 5.40 0.039 0.082 2.5 18
20 125 6.8 0.051 0.082 2.5 18
30 125 8.3 0.07 0.082 2.5 18
40, 50, 60, 75, 100, 125 125 26.5 0.85 1.31 10 42
BW250HAG 125, 150, 160, 175, 200, 225, 250 125 33.3 1.68 3.35 16 56
BW400HAG EW400HAG 250, 300, 350, 400 125 45.0 3.10 3.35 16 56
BW630HAG EW630HAG 500, 600, 630 125 66.5 6.8465 8.18 25 71
BW800HAG EW800HAG 700, 800 125 66.5 6.8465 8.18 25 71