YBX4 Series Explosion Proof Three Phase Asynchronous Motor
YBX4 series of explosion proof three-phase asynchronous motors are the basic series of fully enclosed, fan-cooled, squirrel cage and explosion proof three-phase asynchronous motors developed by our company. And it has the characteristics of excellent performance, safe and reliable use, lower vibration and noise than similar products, and meets environmental protection requirements. The energy efficiency ratings of the motors are YBX4-IE4.
YBX4 Series Explosion Proof Three Phase Asynchronous Motor
YBX4 series of explosion proof three-phase asynchronous motors are the basic series of fully enclosed, fan-cooled, squirrel cage and explosion proof three-phase asynchronous motors developed by our company. And it has the characteristics of excellent performance, safe and reliable use, lower vibration and noise than similar products, and meets environmental protection requirements. The energy efficiency ratings of the motors are YBX4-IE4.
This series of electric motor is mainly applied in areas with mixed dangerous and explosive gases, such as underground coal mine (non-excavation working faces), petroleum, chemical engineering, mining industry, metallurgical industry, power, and natural gas areas that contains gases like methane.

YBX4 Series Explosion Proof Three Phase Asynchronous Motor Main Technical Parameters:
| Frame: | H132~H355 |
| Power Scope: | 2.2KW~315KW |
| Voltage: | 380V, 400V, 415V, 460V, 490V, 660V, 690V,1140V |
| Frequency: | 50Hz, 60Hz |
| Number of Poles: | 2P, 4P, 6P, 8P, 10P |
| Speed: | 3000rpm, 1500rpm, 1000rpm, 750rpm, 600rpm |
| Cooling Method | IC411 |
| Protection Grade | IP55 |
| Insulation Class | F(155℃), H(180℃) |
| Duty: | S1, S4, S5, S6, S9 |
| Mounting Type | B3/ B5/ B35/ V1 |
| Standard: | IEC |
| Efficiency Grade: | IE4 |
YBX4 Series Explosion Proof Three Phase Asynchronous Motor Technical Data:
| Type | Rated Power (kW) | Rated Current (A) | Speed (r/min) | Efficiency (%) | Power Factor (Cosφ) | Locked Torque | Locked Current | Max. Torque | Rated torque (N•m) | Moment of Inertia (kg•m2) | No-load Noised B(A) | Weight (Kg) |
| RatedTorque | Rated Current | Rated Torque | ||||||||||
| Synchronous Speed 3000(r/min) | ||||||||||||
| YBX4-132S1-2 | 5.5KW | 10.4 | 2945 | 90.9 | 0.88 | 2.0 | 9.5 | 2.3 | 18 | 0.02 | 79 | 90 |
| YBX4-132S2-2 | 7.5KW | 14.0 | 2945 | 91.7 | 0.89 | 2.0 | 9.5 | 2.3 | 24 | 0.03 | 79 | 95 |
| YBX4-160M1-2 | 11KW | 20.3 | 2950 | 92.6 | 0.89 | 2.0 | 9.5 | 2.3 | 35 | 0.06 | 81 | 185 |
| YBX4-160M2-2 | 15KW | 27.4 | 2950 | 93.3 | 0.89 | 2.0 | 9.5 | 2.3 | 48 | 0.08 | 81 | 195 |
| YBX4-160L-2 | 18.5KW | 33.7 | 2950 | 93.7 | 0.89 | 2.0 | 9.5 | 2.3 | 59 | 0.09 | 81 | 210 |
| YBX4-180M-2 | 22KW | 40.0 | 2960 | 94.0 | 0.89 | 2.0 | 9.5 | 2.3 | 70 | 0.13 | 83 | 236 |
| YBX4-200L1-2 | 30KW | 54.2 | 2970 | 94.5 | 0.89 | 2.0 | 9.0 | 2.3 | 96 | 0.22 | 84 | 330 |
| YBX4-200L2-2 | 37KW | 66.6 | 2975 | 94.8 | 0.89 | 2.0 | 9.0 | 2.3 | 118 | 0.26 | 84 | 350 |
| YBX4-225M-2 | 45KW | 80.9 | 2980 | 95.0 | 0.89 | 2.0 | 9.0 | 2.3 | 143 | 0.34 | 86 | 425 |
| YBX4-250M-2 | 55KW | 98.5 | 2980 | 95.3 | 0.89 | 2.0 | 9.0 | 2.3 | 175 | 0.76 | 89 | 575 |
| YBX4-280S-2 | 75KW | 133.9 | 2980 | 95.6 | 0.89 | 1.8 | 8.5 | 2.3 | 239 | 0.92 | 91 | 660 |
| YBX4-280M-2 | 90KW | 160.4 | 2980 | 95.8 | 0.89 | 1.8 | 8.5 | 2.3 | 287 | 1.11 | 91 | 700 |
| YBX4-315S-2 | 110KW | 195.6 | 2980 | 96.0 | 0.89 | 1.8 | 8.5 | 2.3 | 350 | 1.58 | 92 | 1090 |
| YBX4-315M-2 | 132KW | 234.2 | 2980 | 96.2 | 0.89 | 1.8 | 8.5 | 2.3 | 420 | 1.78 | 92 | 1145 |
| YBX4-315L1-2 | 160KW | 283.6 | 2980 | 96.3 | 0.89 | 1.8 | 8.5 | 2.2 | 509 | 2.04 | 92 | 1230 |
| YBX4-315L2-2 | 200KW | 353.8 | 2980 | 96.5 | 0.89 | 1.8 | 8.5 | 2.2 | 637 | 2.33 | 92 | 1285 |
| YBX4-355M1-2 | 220KW | 389.2 | 2980 | 96.5 | 0.89 | 1.6 | 8.5 | 2.2 | 700 | 2.87 | 100 | 1824 |
| YBX4-355M2-2 | 250KW | 432.5 | 2980 | 96.5 | 0.91 | 1.6 | 8.5 | 2.2 | 796 | 3.27 | 100 | 1925 |
| YBX4-355L1-2 | 280KW | 484.4 | 2980 | 96.5 | 0.91 | 1.6 | 8.5 | 2.2 | 891 | 3.83 | 100 | 2068 |
| YBX4-355L2-2 | 315KW | 545.0 | 2980 | 96.5 | 0.91 | 1.6 | 8.5 | 2.2 | 1003 | 4.04 | 100 | 2088 |
| Synchronous Speed 1500(r/min) | ||||||||||||
| YBX4-132S-4 | 5.5KW | 11.4 | 1470 | 91.9 | 0.80 | 2.0 | 9.5 | 2.3 | 35 | 0.06 | 71 | 105 |
| YBX4-132M-4 | 7.5KW | 15.2 | 1470 | 92.6 | 0.81 | 2.0 | 9.5 | 2.3 | 48 | 0.07 | 71 | 115 |
| YBX4-160M-4 | 11KW | 21.6 | 1475 | 93.3 | 0.83 | 2.0 | 9.5 | 2.3 | 70 | 0.13 | 73 | 185 |
| YBX4-160L-4 | 15KW | 28.9 | 1475 | 93.9 | 0.84 | 2.0 | 9.5 | 2.3 | 96 | 0.17 | 73 | 210 |
| YBX4-180M-4 | 18.5KW | 35.1 | 1480 | 94.2 | 0.85 | 2.0 | 9.5 | 2.3 | 118 | 0.23 | 76 | 242 |
| YBX4-180L-4 | 22KW | 41.6 | 1480 | 94.5 | 0.85 | 2.0 | 9.5 | 2.3 | 140 | 0.25 | 76 | 250 |
| YBX4-200L-4 | 30KW | 56.5 | 1485 | 94.9 | 0.85 | 2.0 | 9.0 | 2.3 | 191 | 0.45 | 76 | 325 |
| YBX4-225S-4 | 37KW | 69.5 | 1490 | 95.2 | 0.85 | 2.0 | 9.0 | 2.3 | 236 | 0.64 | 78 | 420 |
| YBX4-225M-4 | 45KW | 84.3 | 1490 | 95.4 | 0.85 | 2.0 | 9.0 | 2.3 | 287 | 0.74 | 78 | 450 |
| YBX4-250M-4 | 55KW | 101.5 | 1490 | 95.7 | 0.86 | 2.0 | 9.0 | 2.3 | 350 | 1.05 | 79 | 585 |
| YBX4-280S-4 | 75KW | 136.4 | 1490 | 96.0 | 0.87 | 2.0 | 8.5 | 2.3 | 478 | 1.75 | 80 | 510 |
| YBX4-280M-4 | 90KW | 161.7 | 1490 | 96.1 | 0.88 | 2.0 | 8.5 | 2.3 | 573 | 2.08 | 80 | 550 |
| YBX4-315S-4 | 110KW | 195.0 | 1490 | 96.3 | 0.89 | 1.8 | 8.5 | 2.2 | 700 | 3.33 | 88 | 1065 |
| YBX4-315M-4 | 132KW | 233.8 | 1490 | 96.4 | 0.89 | 1.8 | 8.5 | 2.2 | 840 | 3.71 | 88 | 1185 |
| YBX4-315L1-4 | 160KW | 279.6 | 1490 | 96.6 | 0.90 | 1.8 | 8.5 | 2.2 | 1019 | 4.31 | 88 | 1290 |
| YBX4-315L2-4 | 200KW | 349.2 | 1490 | 96.7 | 0.90 | 1.8 | 8.5 | 2.2 | 1273 | 5.12 | 88 | 1365 |
| YBX4-355M1-4 | 220KW | 384.1 | 1490 | 96.7 | 0.90 | 1.8 | 8.5 | 2.2 | 1410 | 9.28 | 95 | 1953 |
| YBX4-355M2-4 | 250KW | 436.4 | 1490 | 96.7 | 0.90 | 1.8 | 8.5 | 2.2 | 1592 | 10.02 | 95 | 2017 |
| YBX4-355L1-4 | 280KW | 488.8 | 1490 | 96.7 | 0.90 | 1.8 | 8.5 | 2.2 | 1783 | 10.67 | 95 | 2128 |
| YBX4-355L2-4 | 315KW | 549.9 | 1490 | 96.7 | 0.90 | 1.8 | 8.5 | 2.2 | 2006 | 10.95 | 95 | 2154 |
| Synchronous Speed 1000(r/min) | ||||||||||||
| YBX4-132S-6 | 3KW | 7.2 | 970 | 88.6 | 0.71 | 2.0 | 7.5 | 2.1 | 29 | 0.04 | 69 | 85 |
| YBX4-132M1-6 | 4KW | 9.4 | 970 | 89.5 | 0.72 | 2.0 | 8.0 | 2.1 | 38 | 0.05 | 69 | 95 |
| YBX4-132M2-6 | 5.5KW | 12.8 | 970 | 90.5 | 0.72 | 2.0 | 8.0 | 2.1 | 53 | 0.07 | 69 | 105 |
| YBX4-160M-6 | 7.5KW | 16.4 | 980 | 91.3 | 0.76 | 2.0 | 8.0 | 2.1 | 72 | 0.14 | 73 | 175 |
| YBX4-160L-6 | 11KW | 23.5 | 980 | 92.3 | 0.77 | 2.0 | 8.5 | 2.1 | 105 | 0.19 | 73 | 205 |
| YBX4-180L-6 | 15KW | 30.7 | 980 | 92.9 | 0.80 | 2.0 | 8.5 | 2.1 | 143 | 0.31 | 73 | 225 |
| YBX4-200L1-6 | 18.5KW | 37.6 | 985 | 93.4 | 0.80 | 2.0 | 8.5 | 2.1 | 177 | 0.44 | 73 | 305 |
| YBX4-200L2-6 | 22KW | 44.0 | 985 | 93.7 | 0.81 | 2.0 | 8.5 | 2.1 | 210 | 0.55 | 73 | 325 |
| YBX4-225M-6 | 30KW | 59.0 | 990 | 94.2 | 0.82 | 2.0 | 8.3 | 2.1 | 287 | 0.82 | 74 | 390 |
| YBX4-250M-6 | 37KW | 71.7 | 990 | 94.5 | 0.83 | 2.0 | 8.3 | 2.1 | 353 | 1.43 | 76 | 525 |
| YBX4-280S-6 | 45KW | 86.9 | 990 | 94.8 | 0.83 | 2.0 | 8.5 | 2.0 | 430 | 2.22 | 78 | 715 |
| YBX4-280M-6 | 55KW | 104.6 | 990 | 95.1 | 0.84 | 2.0 | 8.5 | 2.0 | 525 | 2.68 | 78 | 820 |
| YBX4-315S-6 | 75KW | 142.2 | 990 | 95.4 | 0.84 | 1.6 | 8.0 | 2.0 | 716 | 3.91 | 83 | 1015 |
| YBX4-315M-6 | 90KW | 168.3 | 990 | 95.6 | 0.85 | 1.6 | 8.0 | 2.0 | 860 | 4.42 | 83 | 1115 |
| YBX4-315L1-6 | 110KW | 205.2 | 990 | 95.8 | 0.85 | 1.6 | 8.0 | 2.0 | 1051 | 5.50 | 83 | 1210 |
| YBX4-315L2-6 | 132KW | 242.9 | 990 | 96.0 | 0.86 | 1.6 | 8.0 | 2.0 | 1261 | 6.81 | 83 | 1325 |
| YBX4-355M1-6 | 160KW | 293.8 | 990 | 96.2 | 0.86 | 1.6 | 8.0 | 2.0 | 1528 | 10.63 | 85 | 1821 |
| YBX4-355M2-6 | 200KW | 366.9 | 990 | 96.3 | 0.86 | 1.6 | 8.0 | 2.0 | 1910 | 12.15 | 85 | 1950 |
| YBX4-355L1-6 | 220KW | 403.6 | 990 | 96.3 | 0.86 | 1.6 | 8.0 | 2.0 | 2101 | 14.25 | 85 | 2109 |
| YBX4-355L2-6 | 250KW | 457.7 | 990 | 96.5 | 0.86 | 1.6 | 8.0 | 2.0 | 2388 | 15.65 | 85 | 2182 |
| Synchronous Speed 750(r/min) | ||||||||||||
| YBX4-132S-8 | 2.2KW | 5.7 | 710 | 84.5 | 0.70 | 1.8 | 7.5 | 2.0 | 28 | 0.04 | 64 | 76 |
| YBX4-132M-8 | 3KW | 7.6 | 710 | 85.9 | 0.70 | 1.8 | 7.8 | 2.0 | 38 | 0.05 | 64 | 89 |
| YBX4-160M1-8 | 4KW | 9.8 | 730 | 87.1 | 0.71 | 1.8 | 7.9 | 2.0 | 51 | 0.09 | 68 | 170 |
| YBX4-160M2-8 | 5.5KW | 13.1 | 730 | 88.3 | 0.72 | 1.8 | 8.1 | 2.0 | 70 | 0.12 | 68 | 185 |
| YBX4-160L-8 | 7.5KW | 17.2 | 730 | 89.3 | 0.74 | 1.8 | 7.8 | 2.0 | 96 | 0.17 | 68 | 200 |
| YBX4-180L-8 | 11KW | 25.0 | 730 | 90.4 | 0.74 | 1.8 | 7.9 | 2.0 | 140 | 0.26 | 70 | 232 |
| YBX4-200L-8 | 15KW | 33.3 | 730 | 91.2 | 0.75 | 1.8 | 8.0 | 2.0 | 191 | 0.36 | 70 | 350 |
| YBX4-225S-8 | 18.5KW | 40.9 | 730 | 91.7 | 0.75 | 1.8 | 8.1 | 2.0 | 236 | 0.54 | 73 | 360 |
| YBX4-225M-8 | 22KW | 47.8 | 730 | 92.1 | 0.76 | 1.8 | 8.3 | 2.0 | 280 | 0.64 | 73 | 620 |
| YBX4-250M-8 | 30KW | 63.9 | 740 | 92.7 | 0.77 | 1.8 | 7.9 | 2.0 | 382 | 0.97 | 75 | 745 |
| YBX4-280S-8 | 37KW | 77.4 | 740 | 93.1 | 0.78 | 1.8 | 7.9 | 2.0 | 471 | 1.61 | 76 | 651 |
| YBX4-280M-8 | 45KW | 93.8 | 740 | 93.4 | 0.78 | 1.8 | 7.9 | 2.0 | 573 | 1.85 | 76 | 729 |
| YBX4-315S-8 | 55KW | 111.5 | 740 | 93.7 | 0.80 | 1.6 | 8.2 | 2.0 | 700 | 3.93 | 82 | 940 |
| YBX4-315M-8 | 75KW | 151.2 | 740 | 94.2 | 0.80 | 1.6 | 7.6 | 2.0 | 955 | 5.38 | 82 | 1150 |
| YBX4-315L1-8 | 90KW | 178.8 | 740 | 94.4 | 0.81 | 1.6 | 7.7 | 2.0 | 1146 | 6.40 | 82 | 1225 |
| YBX4-315L2-8 | 110KW | 217.9 | 740 | 94.7 | 0.81 | 1.6 | 7.7 | 2.0 | 1401 | 7.51 | 82 | 1305 |
| YBX4-355M1-8 | 132KW | 260.9 | 740 | 94.9 | 0.81 | 1.6 | 7.7 | 2.0 | 1681 | 11.82 | 89 | 1742 |
| YBX4-355M2-8 | 160KW | 311.7 | 740 | 95.1 | 0.82 | 1.6 | 7.7 | 2.0 | 2037 | 14.42 | 89 | 1882 |
| YBX4-355L1-8 | 185KW | 360.4 | 740 | 95.1 | 0.82 | 1.6 | 7.7 | 2.0 | 2355 | 16.58 | 89 | 1985 |
| YBX4-355L2-8 | 200KW | 388.4 | 740 | 95.4 | 0.82 | 1.6 | 7.8 | 2.0 | 2547 | 18.74 | 89 | 2119 |
| Synchronous Speed 600(r/min) | ||||||||||||
| YBX4-315S-10 | 45KW | 98.0 | 590 | 93.0 | 0.75 | 1.5 | 6.2 | 2.0 | 716 | 3.93 | 82 | 955 |
| YBX4-315M-10 | 55KW | 119.8 | 590 | 93.0 | 0.75 | 1.5 | 5.8 | 2.0 | 875 | 4.78 | 82 | 1090 |
| YBX4-315L1-10 | 75KW | 159.8 | 590 | 93.8 | 0.76 | 1.5 | 5.9 | 2.0 | 1194 | 6.40 | 82 | 1210 |
| YBX4-315L2-10 | 90KW | 189.3 | 590 | 93.8 | 0.77 | 1.5 | 6.0 | 2.0 | 1433 | 7.51 | 82 | 1285 |
| YBX4-355M1-10 | 110KW | 227.5 | 590 | 94.2 | 0.78 | 1.45 | 6.0 | 2.0 | 1751 | 11.84 | 90 | 1726 |
| YBX4-355M2-10 | 132KW | 272.1 | 590 | 94.5 | 0.78 | 1.45 | 6.0 | 2.0 | 2101 | 14.44 | 90 | 1871 |
| YBX4-355L1-10 | 160KW | 329.8 | 590 | 94.5 | 0.78 | 1.45 | 6.0 | 2.0 | 2547 | 17.91 | 90 | 2060 |
| Note: the motor quality in the table is calculated theoretically and deviates from the actual value. It is for reference only. The actual weight of the motor is taken as the criterion. | ||||||||||||
YBX4 Series Explosion Proof Three Phase Asynchronous Motor Installation Dimension:
1. YBX4 Series Explosion Proof Three Phase Asynchronous Motor B3 Installation Method

| Base No | Poles | Installation size | Overall dimensions | ||||||||||||
| A | B | C | D | E | F | G | H | K | AB | AC | AD | HD | L | ||
| General dimension | |||||||||||||||
| 80M | 2,4,6,8 | 125 | 100 | 50 | 19 | 40 | 6 | 15.5 | 80 | 10 | 165 | 165 | 180 | 320 | 330 |
| 90S | 140 | 56 | 24 | 50 | 8 | 20 | 90 | 180 | 180 | 350 | 380 | ||||
| 90L | 125 | 410 | |||||||||||||
| 100L | 160 | 140 | 63 | 28 | 60 | 24 | 100 | 12 | 200 | 205 | 400 | 473 | |||
| 112M | 190 | 70 | 112 | 245 | 230 | 200 | 420 | 520 | |||||||
| 132S | 216 | 89 | 38 | 80 | 10 | 33 | 132 | 280 | 270 | 450 | 570 | ||||
| 132M | 178 | 615 | |||||||||||||
| 160M | 254 | 210 | 108 | 42 | 110 | 12 | 37 | 160 | 14.5 | 330 | 325 | 220 | 520 | 755 | |
| 160L | 254 | 795 | |||||||||||||
| 180M | 279 | 241 | 121 | 48 | 14 | 42.5 | 180 | 355 | 360 | 550 | 806 | ||||
| 180L | 279 | ||||||||||||||
| 200L | 318 | 305 | 133 | 55 | 16 | 49 | 200 | 18.5 | 390 | 400 | 250 | 645 | 865 | ||
| 225S | 4,8 | 356 | 286 | 149 | 60 | 140 | 18 | 53 | 225 | 435 | 450 | 690 | 913 | ||
| 225M | 2 | 311 | 55 | 110 | 16 | 49 | 923 | ||||||||
| 4,6,8 | 60 | 140 | 18 | 53 | 953 | ||||||||||
| 250M | 2 | 406 | 349 | 168 | 250 | 24 | 490 | 500 | 300 | 730 | 995 | ||||
| 4,6,8 | 65 | 58 | |||||||||||||
| 280S | 2 | 457 | 368 | 190 | 280 | 545 | 560 | 810 | 1047 | ||||||
| 4,6,8 | 75 | 20 | 67.5 | ||||||||||||
| 280M | 2 | 419 | 65 | 18 | 58 | 1122 | |||||||||
| 4,6,8 | 75 | 20 | 67.5 | ||||||||||||
| 315S | 2 | 508 | 406 | 216 | 65 | 18 | 58 | 315 | 28 | 640 | 630 | 400 | 1020 | 1185 | |
| 4,6,8,10 | 80 | 170 | 22 | 71 | 1260 | ||||||||||
| 315M | 2 | 457 | 65 | 140 | 18 | 58 | 1305 | ||||||||
| 4,6,8,10 | 80 | 170 | 22 | 71 | 1380 | ||||||||||
| 315L | 2 | 508 | 65 | 140 | 18 | 58 | 1305 | ||||||||
| 4,6,8,10 | 80 | 170 | 22 | 71 | 1380 | ||||||||||
| 355S | 2 | 610 | 500 | 254 | 75 | 140 | 20 | 67.5 | 355 | 740 | 750 | 500 | 1080 | 1415 | |
| 4,6,8,10 | 95 | 170 | 25 | 86 | 1485 | ||||||||||
| 355M | 2 | 560 | 75 | 140 | 20 | 67.5 | 1535 | ||||||||
| 4,6,8,10 | 95 | 170 | 25 | 86 | 1605 | ||||||||||
| 355L | 2 | 630 | 75 | 140 | 20 | 67.5 | 1645 | ||||||||
| 4,6,8,10 | 95 | 170 | 25 | 86 | 1675 | ||||||||||
2. YBX4 Series Explosion Proof Three Phase Asynchronous Motor B5 Installation Method

| Base No | flange No | Installation size | Profile size | ||||||||||||||
| Poles | D | E | F | G | M | N | Pb | R | S | T | Flange holes |
AC | AD | L | |||
| General dimension | General dimension |
General dimension |
General dimension |
General dimension |
horizontal type | vertical type | |||||||||||
| 80M | FF165 | 2/4/6/8 | 19 | 40 | 6 | 15.5 | 165 | 130 | 200 | 0 | 12 | 3.5 | 4 | 165 | 240 | 330 | 375 |
| 90S | 24 | 50 | 8 | 20 | 180 | 260 | 360 | 405 | |||||||||
| 90L | 385 | 430 | |||||||||||||||
| 100L | FF215 | 28 | 60 | 24 | 215 | 180 | 250 | 14.5 | 4 | 205 | 300 | 440 | 485 | ||||
| 112M | 230 | 310 | 460 | 520 | |||||||||||||
| 132S | FF265 | 38 | 80 | 10 | 33 | 265 | 230 | 300 | 270 | 320 | 510 | 590 | |||||
| 132M | 550 | 630 | |||||||||||||||
| 160M | FF300 | 42 | 110 | 12 | 37 | 300 | 250 | 350 | 18.5 | 5 | 325 | 360 | 670 | 730 | |||
| 160L | 710 | 770 | |||||||||||||||
| 180M | 48 | 14 | 42.5 | 360 | 370 | 730 | 800 | ||||||||||
| 180L | 750 | 820 | |||||||||||||||
| 200L | FF350 | 55 | 16 | 49 | 350 | 300 | 400 | 400 | 445 | 805 | 875 | ||||||
| 225S | FF400 | 4/8 | 60 | 140 | 18 | 53 | 400 | 350 | 450 | 8 | 450 | 465 | 865 | 935 | |||
| 225M | 2 | 55 | 110 | 16 | 49 | 860 | 930 | ||||||||||
| 4/6/8 | 60 | 140 | 18 | 53 | 890 | 960 | |||||||||||
| 250M | FF500 | 2 | 500 | 450 | 550 | 500 | 500 | 945 | 1035 | ||||||||
| 4/6/8 | 65 | 58 | |||||||||||||||
| 280S | 2 | 560 | 550 | 1010 | 1100 | ||||||||||||
| 4/6/8 | 75 | 20 | 67.5 | ||||||||||||||
| 280M | 2 | 65 | 18 | 58 | 1060 | 1150 | |||||||||||
| 4/6/8 | 75 | 20 | 67.5 | ||||||||||||||
| 315S | FF600 | 2 | 65 | 18 | 58 | 600 | 550 | 660 | 24 | 6 | 630 | 705 | – | 1340 | |||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1370 | ||||||||||||
| 315M | 2 | 65 | 140 | 18 | 58 | 1420 | |||||||||||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1450 | ||||||||||||
| 315L | 2 | 65 | 140 | 18 | 58 | 1510 | |||||||||||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1540 | ||||||||||||
| 355S | FF740 | 2 | 75 | 140 | 20 | 67.5 | 740 | 680 | 800 | 750 | 725 | 1600 | |||||
| 4/6/8/10 | 95 | 170 | 25 | 86 | |||||||||||||
| 355M | 2 | 75 | 140 | 20 | 67.5 | ||||||||||||
| 4/6/8/10 | 95 | 170 | 25 | 86 | |||||||||||||
| 355L | 2 | 75 | 140 | 20 | 67.5 | 1780 | |||||||||||
| 4/6/8/10 | 95 | 140 | 25 | 86 | |||||||||||||
3. YBX4 Series Explosion Proof Three Phase Asynchronous Motor B35 Installation Method

| Base No | flange No | Poles | Installation size and tolerance | Profile size | |||||||||||||||||||
| A | B | C | D | E | F | G | H | K | M | N | Pc | R | S | T | Flange holes |
AB | AC | AD | HD | L | |||
| General Dimension | General Dimension |
General Dimension |
General Dimension |
General Dimension |
|||||||||||||||||||
| 80M | FF165 | 2/4/6/8 | 125 | 100 | 50 | 19 | 40 | 6 | 15.5 | 80 | 10 | 165 | 130 | 200 |
0
|
12 | 3.5 | 4 | 165 | 165 | 180 | 320 | 330 |
| 90S | 140 | 56 | 24 | 50 | 8 | 20 | 90 | 180 | 180 | 350 | 380 | ||||||||||||
| 90L | 125 | 410 | |||||||||||||||||||||
| 100l | FF215 | 160 | 140 | 63 | 28 | 60 | 24 | 100 | 12 | 215 | 180 | 250 | 14.5 | 4 | 200 | 205 | 400 | 473 | |||||
| 112M | 190 | 70 | 112 | 245 | 230 | 200 | 420 | 520 | |||||||||||||||
| 132S | FF265 | 216 | 89 | 38 | 80 | 10 | 33 | 132 | 265 | 230 | 300 | 280 | 270 | 450 | 570 | ||||||||
| 132M | 178 | 615 | |||||||||||||||||||||
| 160M | FF300 | 254 | 210 | 108 | 42 | 110 | 12 | 37 | 160 | 14.5 | 300 | 250 | 350 | 18.5 | 5 | 330 | 325 | 220 | 520 | 755 | |||
| 160L | 254 | 795 | |||||||||||||||||||||
| 180M | 279 | 241 | 121 | 48 | 14 | 42.5 | 180 | 355 | 360 | 550 | 806 | ||||||||||||
| 180L | 279 | ||||||||||||||||||||||
| 200L | FF350 | 318 | 305 | 133 | 55 | 16 | 49 | 200 | 18.5 | 350 | 300 | 400 | 390 | 400 | 250 | 645 | 865 | ||||||
| 225S | FF400 | 4/8 | 356 | 286 | 149 | 60 | 140 | 18 | 53 | 225 | 400 | 350 | 450 | 8 | 435 | 450 | 690 | 913 | |||||
| 225M | 2 | 311 | 55 | 110 | 16 | 49 | 923 | ||||||||||||||||
| 4/6/8 | 60 | 140 | 18 | 53 | 953 | ||||||||||||||||||
| 250M | FF500 | 2 | 406 | 349 | 168 | 250 | 24 | 500 | 450 | 550 | 490 | 500 | 300 | 730 | 995 | ||||||||
| 4/6/8 | 65 | 58 | |||||||||||||||||||||
| 280S | 2 | 457 | 368 | 190 | 280 | 545 | 565 | 810 | 1047 | ||||||||||||||
| 4/6/8 | 75 | 20 | 67.5 | ||||||||||||||||||||
| 280M | 2 | 419 | 65 | 18 | 58 | 1122 | |||||||||||||||||
| 4/6/8 | 75 | 20 | 67.5 | ||||||||||||||||||||
| 315S | FF600 | 2 | 508 | 406 | 216 | 65 | 18 | 58 | 315 | 28 | 600 | 550 | 660 | 24 | 6 | 640 | 630 | 400 | 1020 | 1185 | |||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1260 | ||||||||||||||||||
| 315M | 2 | 457 | 65 | 140 | 18 | 58 | 1305 | ||||||||||||||||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1380 | ||||||||||||||||||
| 315L | 2 | 508 | 65 | 140 | 18 | 58 | 1305 | ||||||||||||||||
| 4/6/8/10 | 80 | 170 | 22 | 71 | 1380 | ||||||||||||||||||
| 355S | FF740 | 2 | 610 | 500 | 254 | 75 | 140 | 20 | 67.5 | 355 | 740 | 680 | 800 | 740 | 750 | 500 | 1080 | 1415 | |||||
| 4/6/8/10 | 95 | 170 | 25 | 86 | 1485 | ||||||||||||||||||
| 355M | 2 | 560 | 75 | 140 | 20 | 67.5 | 1535 | ||||||||||||||||
| 4/6/8/10 | 95 | 170 | 25 | 86 | 1605 | ||||||||||||||||||
| 355L | 2 | 75 | 140 | 20 | 67.5 | 1645 | |||||||||||||||||
| 4/6/8/10 | 95 | 170 | 25 | 86 | 1675 | ||||||||||||||||||
YBX4 Series Explosion Proof Three Phase Asynchronous Motor Features:
YBX4 series high efficiency explosion-proof three phase asynchronous motor has advantages such as excellent explosion-proof properties, high efficiency, energy saving, large temperature rise margin, long operation life, good property, low vibration, advanced explosion-proof structure, good starting performance, good-looking appearance, high reliability, and no sparking while operating.
The Difference Between YBX3 and YBX4 Explosion Proof Motors:
The main difference between YBX3 and YBX4 explosion-proof motors is the different energy efficiency grade standards. The YBX3 energy efficiency grade conforms to the GB18613-2020 energy efficiency grade 3 standard, which is IE3, and the YBX4 energy efficiency grade conforms to the GB18613-2020 energy efficiency grade 2 standard, which is IE4. Compared with IE3, the cost of IE4 has also increased significantly.
YBX4 Series Explosion Proof Three Phase Asynchronous Motor Applications:
The YBX4 Series Explosion Proof Motor is mainly applied in areas with mixed dangerous and explosive gases, such as underground coal mines, chemical engineering, the metallurgical industry, natural gas areas, etc.

Why Choose Our YBX4 Series Explosion Proof Motor?
The YBX4 Series Explosion Proof Motor uses a flameproof enclosure to isolate electrical parts that may generate sparks, arcs, and dangerous temperatures from the surrounding explosive gas mixture. For special environments, the selection of explosion-proof motors can minimize accidents such as explosions caused by electric sparks generated when the motor is started. The copper wire can ensure that the motor works stably for a long time and is evenly arranged, so it is not easy to deform. The bearing torque is large and the response is good, so the motor works more stably and the noise is lower. If you need product customization, we also have professionals who can provide services.

China Explosion Proof Motor Manufacturers
HZPT is a professional manufacturer & supplier of electric motors. We have a professional technical team to provide technical services for custom electric motors. Our main products include the Y2 series three phase asynchronous motor, the YD series pole-changing multi-speed three phase motor, the YVF2 series variable frequency three phase motor, the MS series three phase asynchronous motor with aluminum housing, the YB2 series explosion-proof three phase motor, YC series single phase capacitors start induction motor, YCL series heavy-duty single phase capacitor start induction motor and more than 200 specifications and varieties. At the same time, the company has an excellent and professional R & D team committed to developing and designing all kinds of special motors for gearshift machines; the products are widely used in national key projects and are the supplier of many well-known domestic enterprises.
Our motor has the advantages of low energy consumption, high efficiency, novel appearance, low noise, low vibration, long service life, thoughtful service, strict quality management system (ISO9001:2000 quality system certification, CCC certification, CE certification), and has become a well-known brand in the industry and achieved a higher market share. At the same time, the products are also exported to Europe, South America, and Southeast Asia. We would like to have higher quality products, lower preferential prices, complete thoughtful pre-sale, sale, and after-sale service, cooperate with friends from all walks of life, hand in hand advance together, altogether will create a glorious future.
China Explosion Proof Motor Factory
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FAQ
Q1: Are you a direct manufacturer or trading company?
A: We have our own production line and advanced workshop, we also have our own international sales department. we produce and sell all by ourselves.
Q2: How long can I get the feedback after we sent the inquiry?
A: We will reply to you within 12 hours of the working day.
Q3: What products can you offer?
A: We are a professional manufacturer of all kinds of electric motors.
Q4: What applications does your electric motor relate to?
A: Our electric motors cover a wide range of industries including train & railway, automobile & truck, construction machinery, mining machinery, forklift, agricultural machinery, shipbuilding, petroleum machinery, construction, valve and pumps, electric machine, hardware, power equipment, and so on.
Q5: Can you do customized electric motor products?
A: Yes, we can customize the electric motors according to the customers’ drawings or samples.
Q6: How about the capacity of your company?
A: We have modern types of energy-saving & environmentally-friendly production lines, as well as 4 heat treatment production lines. and our annual production capacity is over 20,000 sets.
Q7: How many employees of your company? what about the technicists?
A: We now have more than 200 employees, including 10 technicians.
Q8: What's the payment term?
A: When we quote for you,we will confirm with you the way of transaction,fob,cif,cnf,etc. For mass production goods, you need to pay 30% deposit before producing and70% balance against copy of documents.the most common way is by t/t. l/c is also acceptable.
Q9: How to deliver the goods to us?
A: Usually we will ship the goods to you by sea because we are in Ningbo, and we are only 35 kilometers away from the Ningbo port, it is very convenient and efficient to ship goods to any other country. Of course, if your goods are very urgent, Ningbo airport and shanghai airport are also very nearby.
Q10: Where are your electric motor products mainly exported to?
A: Our electric motors are mainly exported to more than 30 countries including the United States, Germany, Japan, Spain, Italy, Britain, South Korea, Australia, and Canada.
Additional information
| Editor | Yjx |
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We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.
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