ATT Electric and Machinery


		Motors General Purpose Three Phase Standard (EFF2) > WY Series MS Series RMS Series YF Series Three Phase High Efficiency (EFF1) > WE Series WEA Series Single Phase > MY Series ML Series Specific Purpose > High Temperature Resistant Explosion Proof Medium and High Voltage Brake Motors Hydraulic Motors Multi Speed Motors Slip Ring Motors Gear Motors

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General Purpose Motors
Three Phase
Standard (EFF2)
WY Series	MS Series	RMS Series	YF Series

High Efficiency (EFF1)
WE Series	WEA Series

Single Phase
MY Series	ML Series

Specific Purpose Motors
High Temperature Resistant	Explosion Proof	Medium and High Voltage Motors	Brake & Marine Used Motors

Hydraulic Motors	Multi Speed Motors	Slip Ring Motors	Gear Motors

YB2 Series Three Phase Explosion Proof Induction Motor

Performance Data for YB2 Series 50Hz
Rated Power		Pole	Frame Size	Rated Speed (RPM)	Current IFL (A)			Efficiency (%)	Power Factor (COSØ)	Locked Rotor Current / Full Load Current (ILR/IFL)	Locked Rotor Torque / Full Load Torque (TLR/TFL)	Breakdown Torque / Full Load Torque (TM/TFL)	Rated Torque (TFL) Nm	Moment of Inertia (JKgm²)	Weight (Kg)
KW	HP	Pole	Frame Size	Rated Speed (RPM)	380V	400V	415V	Efficiency (%)	Power Factor (COSØ)	Locked Rotor Current / Full Load Current (ILR/IFL)	Locked Rotor Torque / Full Load Torque (TLR/TFL)	Breakdown Torque / Full Load Torque (TM/TFL)	Rated Torque (TFL) Nm	Moment of Inertia (JKgm²)	Weight (Kg)
0.55	0.75	4	80-1	1390	1.57	1.49	1.44	71	0.75	5	2.4	2.3	3.78	0.01	22
0.75	1	2	80-1	2825	1.83	1.74	1.68	75	0.83	6	2.2	2.3	2.54	0	22
0.75	1	4	80-2	1390	2.03	1.93	1.86	73	0.77	5	2.4	2.3	5.15	0.01	24
1.1	1.5	2	80-2	2825	2.55	2.42	2.33	78	0.84	6	2.2	2.3	3.72	0.01	24
1.1	1.5	4	90S	1400	2.89	2.75	2.65	75	0.77	6	2.3	2.3	7.5	0.01	33
1.5	2	2	90S	2840	3.43	3.26	3.14	79	0.84	7	2.2	2.3	5.04	0.01	33
1.5	2	4	90S	1400	2.89	2.75	2.65	75	0.77	6	2.3	2.3	10.23	0.01	33
2.2	3	2	90L	2840	4.85	4.61	4.44	81	0.85	7	2.2	2.3	7.4	0.01	37
2.2	3	4	90L	1400	3.71	3.52	3.39	78	0.79	6	2.3	2.3	15.01	0.02	37
3	4	2	100L	2880	6.24	5.93	5.72	83	0.88	7	2.2	2.3	9.95	0.02	43
3	4	4	100L-2	1420	5.16	4.9	4.72	80	0.81	6	2.3	2.4	20.18	0.03	43
4	5.5	2	112M	2890	8.12	7.71	7.43	85	0.88	7	2.2	2.3	13.22	0.03	54
		4	112M	1440	8.82	8.38	8.08	84	0.82	6	2.3	2.4	26.53	0.06	58
		8	160M-1	720	10.31	9.79	9.44	81	0.73	6	1.9	2.2	53.06	0.32	132
5.5	7.5	2	132S-1	2900	11	10.45	10.07	86	0.88	7.5	2.2	2.3	18.11	0.06	79
		4	132S	1440	11.6	11.02	10.62	86	0.84	7	2.3	2.4	36.48	0.11	80
		8	160M-2	720	13.4	12.73	12.27	83	0.75	6	1.9	2.2	72.95	0.46	144
7.5	10	2	132S-2	2900	14.91	14.16	13.65	87	0.88	7.5	2.2	2.3	24.7	0.07	87
		4	132M	1440	15.4	14.63	14.1	87	0.85	7	2.3	2.4	49.74	0.17	95
		6	160M	970	16.8	15.96	15.38	86	0.79	6.5	2.1	2.4	73.84	0.46	154
		8	160L	720	17.6	16.72	16.12	85	0.76	6	1.9	2.2	99.48	0.61	175
11	15	2	160M-1	2930	21.51	20.43	19.69	88.4	0.88	7.5	2.2	2.4	35.85	0.21	140
		4	160M	1460	22.31	21.19	20.42	88	0.85	7	2.2	2.4	71.95	0.36	150
		6	160L	970	24.2	22.99	22.16	87.5	0.79	6.5	2.1	2.4	108.3	0.61	176
		8	180L	730	25.31	24.04	23.17	87	0.76	6	1.9	2.2	143.9	1.06	225
15	20	2	160M-2	2930	28.6	27.17	26.19	89.4	0.89	7.5	2.2	2.4	48.89	0.25	152
		4	160L	1460	30.11	28.6	27.57	89	0.85	7	2.2	2.4	98.12	0.42	168
		6	180L	970	31.6	30.02	28.93	89	0.81	7	2.1	2.1	147.68	1.01	225
		8	200L	730	33.71	32.02	30.86	89	0.76	6.5	2	2.2	196.23	1.6	315
18.5	25	2	160L	2930	35.11	33.35	32.14	90	0.89	7.5	2.2	2.4	60.3	0.31	168
		4	180M	1470	36.51	34.68	33.43	90.5	0.85	7	2.2	2.3	120.19	0.68	220
		6	200L-1	970	37.6	35.72	34.43	90	0.83	7	2.2	2.4	182.14	1.62	290
		8	225S	730	40	38	36.63	90	0.78	6.5	2	2.2	242.02	2.28	375
22	30	2	180M	2940	41	38.95	37.54	90.5	0.9	7.5	2	2.3	71.46	0.37	220
		4	180L	1470	43.11	40.95	39.47	91.2	0.85	7	2.2	2.3	142.93	0.7	242
		6	200L-2	970	44.71	42.47	40.93	90	0.83	7	2.2	2.4	216.6	1.84	315
		8	225M	730	47.4	45.03	43.4	90.5	0.78	6.5	2	2.2	287.81	2.74	395
30	40	2	200L-1	2950	55.4	52.63	50.73	91.4	0.9	7.5	2	2.4	97.12	0.63	290
		4	200L	1470	57.6	54.72	52.74	92	0.86	7.2	2.2	2.4	194.9	0.81	335
		6	225M	980	57.6	54.72	52.74	92	0.86	7	2.1	2.4	292.35	2.43	410
		8	250M	730	63.4	60.23	58.05	91	0.79	6.5	1.9	2	392.47	3.67	530
37	50	2	200L-2	2950	67.91	64.51	62.18	92	0.9	7.5	2	2.4	119.78	0.73	305
		4	225S	1480	69.91	66.41	64.01	92.5	0.87	7.2	2.2	2.4	238.75	1.21	400
		6	250M	980	71	67.45	65.01	92	0.86	7	2.1	2.4	360.56	2.68	525
		8	280S	740	77.8	73.91	71.24	91.5	0.79	6	1.8	2	477.5	5.16	605
45	60	2	225M	2970	82.11	78	75.18	92.5	0.9	7.5	2	2.3	144.7	1.28	400
		4	225M	1480	84.71	80.47	77.56	92.8	0.87	7.2	2.2	2.4	290.37	1.85	415
		6	280S	980	85.91	81.61	78.66	92.5	0.86	7	2.1	2.4	438.52	3.46	635
		8	280M	740	94.11	89.4	86.17	92	0.79	6	1.8	2	580.74	5.82	700
55	75	2	250M	2970	99.8	94.81	91.38	93	0.9	7.5	2.1	2.3	176.85	1.55	460
		4	250M	1480	103.31	98.14	94.59	93	0.87	7.2	2.2	2.4	354.9	2.32	560
		6	280M	980	104.71	99.47	95.87	92.8	0.86	7	2.1	2.3	535.97	3.97	730
		8	315S	740	111.2	105.64	101.82	92.8	0.81	6.5	1.9	2.2	709.8	6.74	920
75	100	2	280S	2970	133.8	127.11	122.52	93.6	0.91	7.5	2	2.3	241.16	1.89	625
		4	280S	1480	139.6	132.62	127.83	93.8	0.87	7.2	2.2	2.4	483.95	2.86	665
		6	315S	985	141.71	134.62	129.75	93.5	0.86	7	2	2.2	727.16	4.57	1080
		8	315M	740	151.31	143.74	138.54	93	0.81	6.5	1.9	2.2	967.91	7.35	1100
90	125	2	280M	2970	160	152	146.51	93.9	0.91	7.5	2.1	2.3	289.39	2.02	728
		4	280M	1485	166.8	158.46	152.73	94.2	0.87	7.2	2.2	2.4	578.79	3.34	780
		6	315M	985	169.51	161.03	155.21	93.8	0.86	7	2	2.2	872.59	4.83	1140
		8	315L-1	740	177.8	168.91	162.8	93.8	0.82	6.5	1.9	2.2	1161.49	8.79	1120
110	150	2	315S	2980	195.4	185.63	178.92	94	0.91	7	1.8	2.3	352.52	2.26	1100
		4	315S	1485	198.71	188.77	181.95	94.5	0.89	7	2.1	2.4	707.41	4.68	1150
		6	315L-1	985	206.71	196.37	189.27	94	0.86	7	2	2.2	1066.5	5.32	1310
		8	315L-2	740	216.8	205.96	198.52	94	0.82	6.5	1.9	2.2	1419.59	9.18	1300
132	180	2	315M	2980	233.2	221.54	213.53	94.5	0.91	7	1.8	2.3	423.02	2.42	1160
		4	315M	1485	237.71	225.82	217.66	94.8	0.89	7	2.1	2.4	848.89	4.96	1200
		6	315L-2	985	244.71	232.47	224.07	94.2	0.87	7	2	2.2	1279.8	5.95	1400
		8	355S	740	259.6	246.62	237.71	94.2	0.82	6.5	2	2.2	1703.51	10.19	1640
160	215	2	315L-1	2980	279.31	265.34	255.75	94.6	0.92	7	1.8	2.3	512.75	2.76	1350
		4	315L-1	1485	284.31	270.09	260.33	95	0.9	7	2.1	2.4	1028.96	5.22	1320
		6	355S	985	292.31	277.69	267.65	94.5	0.88	7	2	2.2	1551.27	7.32	1650
		8	355M	740	313.4	297.73	286.97	94.6	0.82	6.5	2	2.2	2064.86	11.24	1820
185	250	2	315L	2980	323	306.85	295.76	94.6	0.92	7	1.8	2.3	592.87	3.22	1500
		4	315L	1485	328.71	312.27	300.98	95	0.9	7	2.1	2.4	1189.73	5.43	1420
		6	355M-1	985	338	321.1	309.49	94.5	0.88	7	2	2.2	1793.65	7.89	1760
		8	355L-1	740	362.31	344.19	331.75	94.6	0.82	6.5	2	2.2	2387.5	12.48	2100
200	270	2	315L-2	2980	348.4	330.98	319.02	94.8	0.92	7	1.8	2.3	640.94	3.41	1600
		4	315L-2	1485	354.6	336.87	324.69	95.2	0.9	7	2.1	2.3	1286.2	5.62	1500
		6	355M-2	985	364.6	346.37	333.85	94.7	0.88	7	2	2.2	1939.09	8.17	1970
		8	355L-2	740	386.2	366.89	353.63	94.8	0.83	6.5	2	2.2	2581.08	13.56	220
220	295	2	355M-1	2980	383.2	364.04	350.88	94.8	0.92	7	1.6	2.4	705.03	5.46	1840
		4	355M-1	1488	390.11	370.6	357.2	95.2	0.9	7	2.1	2.4	1411.96	6.88	1830
		6	355L-1	985	401.11	381.05	367.28	94.7	0.88	7	2	2.2	2132.99	8.25	2140
250	340	2	355M-2	2980	433.2	411.54	396.67	95.3	0.92	7	1.6	2.4	801.17	6.22	2100
		4	355M-2	1488	441.91	419.81	404.64	95.5	0.9	7	2.1	2.4	1604.5	7.22	1940
		6	355L-2	985	454.31	431.59	415.99	95	0.88	7	2	2.2	2423.86	8.36	2250
280	380	2	355L-1	2980	485.2	460.94	444.28	95.3	0.92	7	1.6	2.4	897.32	6.54	2260
280	380	4	355L-1	1488	494.91	470.16	453.17	95.5	0.9	7	2.1	2.4	1797.04	7.46	2080
315	425	2	355L-2	2980	544.11	516.9	498.22	95.6	0.92	7	1.6	2.4	1009.48	6.95	2320
315	425	4	355L-2	1488	556.2	528.39	509.29	95.6	0.9	7	2.1	2.4	2021.67	7.68	2260

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