RATINGS FOR CONTROL OF MOTORS
(Table n. 4)
| TYPE | A.C. motors | ||||||
| Utilization category AC2 & AC3 | |||||||
| Maximum operational current Iem [A] | Max. operational power [kw] | ||||||
| 240V | 380V | 415V | 500V | 660V | 1000V | ||
| N85 | 80 | 25 | 40 | 45 | 52 | 60 | 87 |
| N125 | 110 | 35 | 55 | 60 | 72 | 85 | 120 |
| N190 | 180 | 57 | 90 | 100 | 118 | 135 | 190 |
| N270 | 250 | 78 | 125 | 140 | 164 | 190 | 270 |
| N350 | 320 | 100 | 160 | 175 | 210 | 240 | 350 |
| N550 | 500 | 158 | 250 | 275 | 328 | 380 | 550 |
| N650 | 600 | 188 | 300 | 327 | 394 | 460 | 650 |
| N800 | 750 | 240 | 380 | 415 | 500 | 580 | 800 |
| N1000 | 900 | 283 | 450 | 490 | 590 | 680 | 950 |
| N1250 | 1100 | 350 | 550 | 600 | 720 | 850 | 1200 |
| N1600 | 1400 | 440 | 700 | 760 | 920 | 1050 | 1500 |
| N2000 | 1800 | 570 | 900 | 980 | 1180 | 1350 | 1900 |
| N3000 | 2500 | 780 | 1250 | 1360 | 1640 | 1900 | 2500 |
| TYPE | A.C. motors | ||||||
| Utilization category AC4 | |||||||
| Maximum operational current Iem [A] | Max. operational power [kw] | ||||||
| 240V | 380V | 415V | 500V | 660V | 1000V | ||
| N85 | 75 | 24 | 38 | 41 | 45 | 51 | 70 |
| N125 | 95 | 30 | 48 | 52 | 57 | 65 | 90 |
| N190 | 170 | 55 | 85 | 93 | 100 | 115 | 170 |
| N270 | 210 | 67 | 105 | 115 | 124 | 140 | 220 |
| N350 | 270 | 86 | 136 | 148 | 160 | 182 | 290 |
| N550 | 450 | 142 | 227 | 250 | 270 | 307 | 480 |
| N650 | 550 | 175 | 278 | 303 | 330 | 375 | 550 |
| N800 | 650 | 207 | 330 | 360 | 390 | 445 | 650 |
| N1000 | 800 | 256 | 405 | 442 | 480 | 545 | 800 |
| N1250 | 1000 | 327 | 510 | 557 | 600 | 680 | 1000 |
| N1600 | 1250 | 400 | 630 | 688 | 746 | 850 | 1200 |
| N2000 | 1600 | 513 | 810 | 884 | 960 | 1090 | 1600 |
| N3000 | 2250 | 720 | 1140 | 1250 | 1350 | 1530 | 2000 |
| TYPE | D.C. motors | |
| Max. operational current Iem [A] | ||
| CAT. DC2 - DC3 (*) | CAT. DC4 - DC5 (*) | |
| N85 | 80 | 75 |
| N125 | 110 | 95 |
| N190 | 180 | 170 |
| N270 | 250 | 210 |
| N350 | 320 | 270 |
| N550 | 500 | 450 |
| N650 | 600 | 550 |
| N800 | 750 | 650 |
| N1000 | 900 | 800 |
| N1250 | 1100 | 1000 |
| N1600 | 1400 | 1250 |
| N2000 | 1800 | 1600 |
| N3000 | 2500 | 2250 |
| (*) CAT. DC2 - DC3 : 1 pole up to 440V - 2 poles up to 1000V | ||||||
(*) CAT. DC4 - DC5 : 1 pole up to 220V - 2 poles up to 750V |
The above ratings are the maximum permissible for normal duty with reference to the making and breaking capacity stated by the I.E.C. standards 947-4-1.
The maximum operational current Iem is referred to a class of intermittent duty up to 20 operating cycles for hour. For intermittent duty higher than 20cy/h, the curves below give the corresponding derating.
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