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PowerPact H-, J-, and L-Frame Circuit Breakers
Trip Curves
223
02/2016
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Table 145: M73 Instantaneous Trip Points
Automatic Setting (A)
1
1
± 5% of nominal amperage shown above.
Manual Adjustment (A)
1
I
m
Setting 1 2 6x 8x 9x 10x 11x 12x 13x
Motor Type
NEMA A, B, C, D B, E
(FLA) x (I
m
)
IEC N H
FLA
30 240 330 180 240 270 300 330 360 390
35 280 385 210 280 315 350 385 420 455
41 328 451 246 328 369 410 451 492 533
46 368 506 276 368 414 460 506 552 598
51 408 561 306 408 459 510 561 612 663
56 448 616 336 448 504 560 616 672 728
63 504 693 378 504 567 630 693 756 819
71 568 781 426 568 639 710 781 852 923
80 640 880 480 640 720 800 880 960 1040
Dampening for motor in-rush (% FLA) 1300% 1700% 1300% —
Table 146: M74 Instantaneous Trip Points
Automatic Setting (A)
1
1
± 5% of nominal amperage shown above.
Manual Adjustment (A)
1
I
m
Setting 1 2 6x 8x 9x 10x 11x 12x 13x
Motor Type
NEMA A, B, C, D B, E
(FLA) x (I
m
)
IEC N H
FLA
58 464 638 348 464 522 580 638 696 754
71 568 781 426 568 639 710 781 852 923
79 632 869 474 632 711 790 869 948 1027
86 688 946 516 688 774 860 946 1032 1118
91 728 1001 546 728 819 910 1001 1092 1183
97 776 1067 582 776 873 970 1067 1164 1261
110 880 1210 660 880 990 1100 1210 1320 1430
119 952 1309 714 952 1071 1190 1309 1428 1547
130 1040 1430 780 1040 1170 1300 1430 1560 1690
Dampening for motor in-rush (% FLA) 1300% 1700% 1300% —
Table 147: M75 Instantaneous Trip Points
Automatic Setting (A)
1
1
± 5% of nominal amperage shown above.
Manual Adjustment (A)
1
I
m
Setting 1 2 6x 8x 9x 10x 11x 12x 13x
Motor Type
NEMA A, B, C, D B, E
(FLA) x (I
m
)
IEC N H
FLA
114 912 1254 684 912 1026 1140 1254 1368 1482
137 1096 1507 822 1096 1233 1370 1507 1644 1781
145 1160 1595 870 1160 1305 1450 1595 1740 1885
155 1240 1705 930 1240 1395 1550 1705 1860 2015
163 1304 1793 978 1304 1467 1630 1793 1956 2119
172 1376 1892 1032 1376 1548 1720 1892 2064 2236
181 1448 1991 1086 1448 1629 1810 1991 2172 2353
210 1680 2310 1260 1680 1890 2100 2310 2500
2
2
2500 A maximum instantaneous trip point.
2500
2
217 1736 2387 1302 1736 1953 2170 2387 2500
2
2500
2
Dampening for motor in-rush (% FLA) 1100–1300% 1100–1700%
1100–
1300%
—