Explosion-proof motors

Preliminary selection of the motor according to motor type/series, speed or number of poles, frame size, rated output, rated torque, rated speed and rated current

Self-ventilated motors in Zone 1 with type of protection "e" (Ex e II Increased safety)

Speed	Frame size	Rated output	Rated speed	Rated torque	Rated current at 400 V
rpm		kW	rpm	Nm	A
Aluminum series 1MA7 50 Hz
3000, 2-pole	63 M ... 160 L	0.18 ... 16	2810 ... 2910	0.61 ... 53	0.55 ... 30.0
1500, 4-pole	63 M ... 160 L	0.12 ... 13.5	1375 ... 1465	0.83 ... 88	0.52 ... 27
1000, 6-pole	71 M ... 160 L	0.25 ... 9.7	850 ... 965	2.8 ... 96	0.81 ... 21
Cast-iron series 1MA6 50 Hz
3000, 2-pole	100 L ... 315 L	2.5 ... 165	2865 ... 2986	8.3 ... 528	5.3 ... 280
1500, 4-pole	100 L ... 315 L	2 ... 165	1420 ... 1492	14 ... 1061	4.5 ... 305
1000, 6-pole	100 L ... 315 L	1.3 ... 135	935 ... 991	13 ... 1300	3.35 ... 240

Self-ventilated motors in Zone 1 with type of protection "d" (Ex de IIC explosion-proof enclosure)

Speed	Frame size	Rated output	Rated speed	Rated torque	Rated current at 400 V
rpm		kW	rpm	Nm	A
Cast-iron series 1MJ6 50 Hz
3000, 2-pole	71 M ... 200 L	0.37 ... 37	2750 ... 2945	1 ... 120	0.98 ... 64
1500, 4-pole	71 M ... 200 L	0.25 ... 30	1325 ... 1465	1 ... 196	0.78 ... 55
1000, 6-pole	71 M ... 200 L	0.25 ... 22	870 ... 975	2 ... 215	0.82 ... 42.5
750, 8-pole	90 L ... 200 L	0.37 ... 15	655 ... 725	5 ... 198	1.16 ... 32
Cast-iron series 1MJ7 50 Hz
3000, 2-pole	225 M ... 315 M	45 ... 132	2955 ... 2980	145 ... 423	77 ... 225
1500, 4-pole	225 S ... 315 M	37 ... 132	1475 ... 1486	240 ... 848	67 ... 232
1000, 6-pole	225 M ... 315 M	30 ... 90	978 ... 988	293 ... 870	56 ... 162
750, 8-pole	225 S ... 315 M	18.5 ... 75	725 ... 738	244 ... 970	37.5 ... 140
Steel series 1MJ8 50 Hz
3000, 2-pole	355	315 ... 400	2982 ... 2985	1009 ... 1279	530 ... 655
1500, 4-pole	355	280 ... 400	1485 ... 1491	1795 ... 2561	495 ... 690
1000, 6-pole	355	250 ... 315	993 ... 994	2403 ... 3027	440 ... 560
750, 8-pole	355	200 ... 250	744	2566 ... 3206	370 ... 466
Steel/cast-iron series 1MJ1 50 Hz
3000, 2-pole	315 M ... 450	160 ... 900	2977 ... 2985	515 ... 2879	280 ... 915
1500, 4-pole	315 M ... 450	160 ... 950	1485 ... 1493	1030 ... 6076	285 ... 1355
1000, 6-pole	315 M ... 450	110 ... 800	990 ... 995	1060 ... 7676	195 ... 1240
750, 8-pole	315 M ... 450	90 ... 670	740 ... 746	1160 ... 8579	175 ... 1210

Self-ventilated motors in Zones 2, 21 and 22 with type of protection “n” or protection against dust explosions

Speed	Frame size	Rated output	Rated speed	Rated torque	Rated current at 400 V, 50 Hz at 460 V, 60 Hz
rpm		kW at 50 Hz HP at 60 Hz	rpm	Nm	A
Aluminum series 1LA7 and 1LA5¹⁾ 50 Hz
3000, 2-pole	56 M²) ... 225 M	0.09 ... 45	2830 ... 2959	0.3 ... 145	0.26 ... 78
1500, 4-pole	56 M²) ... 225 M	0.06 ... 45	1350 ... 1470	0.42 ... 292	0.2 ... 80
1000, 6-pole	63 M ... 225 M	0.09 ... 30	850 ... 978	1 ... 293	0.44 ... 61
750, 8-pole	71 M ... 225 M	0.09 ... 22	630 ... 724	1.4 ... 290	0.36 ... 44.5
Aluminum series 1LA9
„High Efficiency“ 50 Hz
3000, 2-pole	56 M ... 200 L	0.09 ... 37	2830 ... 2950	0.3 ... 120	0.24 ... 64
1500, 4-pole	56 M ... 200 L	0.06 ... 30	1380 ... 1465	0.42 ... 196	0.22 ... 53
1000, 6-pole	90 S ... 200 L	0.75 ... 22	925 ... 975	7.7 ... 215	2 ... 45
For implementation in the North American market according to EPACT 60 Hz
3600, 2-pole	56 M ... 200 L	0.12 ... 50	3440 ... 3555	0.25 ... 100	0.23 ... 57
1800, 4-pole	56 M ... 200 L	0.08 ... 40	1715 ... 1770	0.33 ... 161	0.18 ... 47
1200, 6-pole	90 S ... 200 L	1 ... 30	1140 ... 1175	6.2 ... 182	1.78 ... 40
Cast-iron series 1LA6 and 1LG4 50 Hz
3000, 2-pole	100 L ... 315 L	3 ... 200	2890 ... 2982	9.9 ... 641	6.1 ... 325
1500, 4-pole	100 L ... 315 L	2.2 ... 200	1420 ... 1486	15 ... 1285	4.7 ... 340
1000, 6-pole	100 L ... 315 L	1.5 ... 160	925 ... 988	15 ... 1547	3.9 ... 285
750, 8-pole	100 L ... 315 L	0.75 ... 132	679 ... 738	11 ... 1708	2.15 ... 245
Cast-iron series 1LG6
„High Efficiency“ 50 Hz
3000, 2-pole	180 M ... 315 L	22 ... 200	2955 ... 2982	71 ... 641	38.5 ... 320
1500, 4-pole	180 M ... 315 L	18.5 ... 200	1470 ... 1490	120 ... 1282	34.5 ... 340
1000, 6-pole	180 M ... 315 L	15 ... 160	975 ... 990	147 ... 1543	29.5 ... 280
750, 8-pole	180 M ... 315 L	11 ... 132	725 ... 740	145 ... 1704	23.5 ... 240
For implementation in the North American market according to EPACT 60 Hz
3600, 2-pole	180 M ... 315 L	30 ... 300	3560 ... 3591	60 ... 595	34 ... 320
1800, 4-pole	180 M ... 315 L	25 ... 300	1775 ... 1792	100 ... 1193	31 ... 335
1200, 6-pole	180 M ... 315 L	20 ... 200	1178 ... 1192	121 ... 1195	25.5 ... 235
Cast-iron series 1LA8 50 Hz for mains-fed operation³⁾
3000, 2-pole	315 ... 450	250 ... 1000	2979 ... 2986	801 ... 3200	415 ... 1020
1500, 4-pole	315 ... 450	250 ... 1000	1488 ... 1492	1600 ... 6400	430 ... 1060
1000, 6-pole	315 ... 450	200 ... 800	988 ... 993	1930 ... 7690	345 ... 1100
750, 8-pole	315 ... 450	160 ... 630	739 ... 744	2070 ... 8090	295 ... 1160
Cast-iron series 1PQ8 50 with standard insulation 500 V³⁾
3000, 2-pole	315 ... 450	250 ... 1000	2979 ... 2986	801 ... 3200	415 ... 1020
1500, 4-pole	315 ... 450	250 ... 1000	1488 ... 1492	1600 ... 6400	430 ... 1060
1000, 6-pole	315 ... 450	200 ... 800	988 ... 993	1930 ... 7690	345 ... 1100
750, 8-pole	315 ... 450	160 ... 630	739 ... 744	2070 ... 8090	295 ... 1160

Motors for converter-fed operation 1LA8 ³⁾ with normal and special insulation or 1PQ8 ³⁾ , for special insulation, see Non-standard motorsframe size 315 and above.

¹⁾ Motor series 1LA5 is not possible for Zone 2.

²⁾ Motor series 1LA7 is only possible for Zone 2 in frame size 63 M and above.

³⁾ Motor series 1LA8 and 1PQ8 are not possible for Zone 21.