This series motors are designed and manufactured into explosion proof type and the explosion proof property conforms to China National Standards:
GB3836.1-2000 Electrical Apparatus for Explosive Gas Atmospheres-General Requirements.
GB3836.2-2000 Electrical Apparatus for Explosive Gas Atmospheres- Explosion proof Enclosure d and standards IEC79-1, BS4683 and EN50018.

ExdI- safe for use in the non-mining surfaces of underground coal mines where the explosive mixtures of methane or coal-dust are present.
ExdIIAT4 - safe for use in plants where the explosive mixtures of IIA Class, TI, T2, T3 or T4 are present.
ExdIIBT4 - safe for use in plants where the explosive mixtures of IIB Class, TI, T2, T3 or T4 are present.
ExdIICT4 - safe for use in plants where the explosive mixtures of IIC Class, TI, T2, T3 or T4 are present.

1. Ambinent tempertuer should not be more than 40 Centigrade
2. The elevation should not be exceed 1000 meters.
3. The relative humindity should not be more than 90%.
4. Rated Frequency: 50Hz
5. Rated voltage: 380V, 660V, 380V/660V
6. Operation mode is S1
7. Protection degree: IP55, Insulation class: F

TECHENICAL DATA OF YB2 SERIES
Type	Rated Power		Current	Speed	EFF.	Power Factor	Tst/Tn	Ist/In	Mst/Tn	Noise	Libration grade
	kW	HP	A	r/min	(%)	COSφ				(dB)	(mm/s)
YB2-631-2	0.18	0.24	0.5	2730	66	0.8	5.5	2.2	2.2	61	1.8
YB2-632-2	0.25	0.33	0.66	2730	68	0.81	5.5	2.2	2.2	61	1.8
YB2-711-2	0.37	0.5	0.96	2750	70	0.81	6.1	2.2	2.2	64	1.8
YB2-712-2	0.55	0.75	1.33	2790	73	0.82	6.1	2.2	2.3	64	1.8
YB2-80M1-2	0.75	1	1.8	2845	75	0.83	6.1	2.2	2.3	67	1.8
YB2-80M2-2	1.1	1.5	2.55	2840	78	0.84	7.0	2.2	2.3	67	1.8
YB2-90S-2	1.5	2	3.43	2840	79	0.84	7.0	2.2	2.3	72	1.8
YB2-90L-2	2.2	3	4.85	2840	81	0.85	7.0	2.2	2.3	72	1.8
YB2-100L-2	3	4	6.24	2850	83	0.87	7.5	2.2	2.3	76	1.8
YB2-112M-2	4	5.5	8.12	2890	85	0.88	7.5	2.2	2.3	77	1.8
YB2-132S1-2	5.5	7.5	11.1	2910	86	0.88	7.5	2.2	2.3	80	1.8
YB2-132S2-2	7.5	10	14.9	2920	87	0.88	7.5	2.2	2.3	80	1.8
YB2-160M1-2	11	15	21.5	2935	88.4	0.89	7.5	2.2	2.3	86	2.8
YB2-160M2-2	15	20	28.8	2935	89.4	0.89	7.5	2.2	2.3	86	2.8
YB2-160L-2	18.5	25	35.5	2935	90	0.9	7.5	2.0	2.3	86	2.8
YB2-180M-2	22	30	41	2940	90.5	0.9	7.5	2.0	2.3	89	2.8
YB2-200L1-2	30	40	55.4	2945	91.4	0.9	7.5	2.0	2.3	92	2.8
YB2-200L2-2	37	50	67.9	2945	92	0.9	7.5	2.0	2.3	92	2.8
YB2-225M-2	45	60	82.1	2950	92.5	0.9	7.5	2.0	2.3	92	2.8
YB2-250M-2	55	75	99.8	2965	93	0.9	7.5	2.0	2.3	93	3.5
YB2-280S-2	75	100	134.4	2965	93.6	0.9	7.5	2.0	2.3	94	3.5
YB2-280M-2	90	125	160.7	2965	93.9	0.91	7.1	2.0	2.3	94	3.5
YB2-315S-2	110	150	195.4	2975	94	0.91	7.1	1.8	2.2	96	3.5
YB2-315M-2	132	180	233.2	2975	94.5	0.91	7.1	1.8	2.2	96	3.5
YB2-315L1-2	160	215	279.3	2975	94.6	0.92	7.1	1.8	2.2	99	3.5
YB2-315L1-2	185	250	348.8	2975	94.6	0.92	7.1	1.8	2.2	99	3.5
YB2-315L2-2	200	270	323	2980	94.8	0.92	7.1	1.8	2.2	103	3.5
YB2-355M1-2	220	300	383.2	2980	94.8	0.92	7.1	1.8	2.2	103	3.5
YB2-355M2-2	250	340	433.2	1320	95.3	0.72	4.4	2.1	2.2	52	1.8
YB2-355L1-2	280	380	485.2	1320	95.3	0.73	4.4	2.1	2.2	52	1.8
YB2-355L2-2	315	420	544.1	1350	95.6	0.74	5.2	2.1	2.2	55	1.8
YB2-631--4	0.12	0.16	0.43	1340	58	0.75	5.2	2.1	2.3	55	1.8
YB2-632-4	0.18	0.24	0.65	1390	63	0.75	6.0	2.4	2.3	58	1.8
YB2-711-4	0.25	0.33	0.76	1380	69	0.76	6.0	2.3	2.3	58	1.8
YB2-712-4	0.37	0.5	1.1	1390	75	0.77	6.0	2.3	2.3	61	1.8
YB2-80M1-4	0.55	0.75	1.55	1410	78	0.79	7.0	2.3	2.3	61	1.8
YB2-80M2-4	0.75	1	2.03	1410	80	0.81	7.0	2.3	2.3	64	1.8
YB2-90S-4	1.1	1.5	2.85	1440	82	0.82	7.0	2.3	2.3	64	1.8
YB2-90L-4	1.5	2	3.7	1445	84	0.82	7.0	2.3	2.3	65	1.8
YB2-100L1-4	2.2	3	5.16	1445	85	0.83	7.0	2.3	2.3	71	1.8
YB2-100L2-4	3	4	6.78	1460	87	0.84	7.0	2.3	2.3	71	2.8
YB2-112M-4	4	5.5	8.82	1470	88	0.84	7.5	2.2	2.3	75	2.8
YB2-132S-4	5.5	7.5	11.6	1470	89	0.85	7.5	2.2	2.3	75	2.8
YB2-132M-4	7.5	10	15.4	1475	90.5	0.86	7.5	2.2	2.3	76	2.8
YB2-160M-4	11	15	22.3	1475	91	0.86	7.2	2.2	2.3	76	2.8
YB2-160L-4	15	20	30.1	1475	92	0.86	7.2	2.2	2.3	79	2.8
YB2-180M-4	18.5	25	36.5	1485	92.5	0.87	7.2	2.2	2.3	81	2.8
YB2-180L-4	22	30	43.1	1485	92.8	0.87	7.2	2.2	2.3	81	3.5
YB2-200L-4	30	40	57.6	1485	93	0.87	7.2	2.2	2.3	83	3.5
YB2-225S-4	37	50	69.9	1485	93.8	0.87	7.2	2.2	2.3	86	3.5
YB2-225M-4	45	60	84.7	1485	94.2	0.87	6.9	2.1	2.2	93	3.5
YB2-250M-4	55	75	103.3	1485	94.5	0.87	6.9	2.1	2.2	93	3.5
YB2-280S-4	75	100	139.6	1485	94.8	0.88	6.9	2.1	2.2	97	3.5
YB2-280M-4	90	125	166.8	1485	94.9	0.88	6.9	2.1	2.2	97	3.5
YB2-315S-4	110	150	198.7	1485	95	0.89	6.9	2.1	2.2	97	3.5
YB2-315M-4	132	180	237.7	1490	95.3	0.9	6.8	2.1	2.2	101	3.5
YB2-315L1-4	160	215	284.3	1490	95.6	0.9	6.8	2.1	2.2	101	3.5
YB2-315L1-4	185	250	328.7	1490	95.2	0.9	6.8	2.1	2.2	101	3.5
YB2-315L2-4	200	270	354.6	1490	95.2	0.9	6.8	2.1	2.2	101	3.5
YB2-355M1-4	220	300	390.1	1490	95.5	0.9	6.8	2.1	2.2	101	3.5
YB2-355M2-4	250	340	440.7	1490	95.5	0.9	6.8	2.1	2.2	101	3.5
YB2-355L2-4	280	380	494.9	1490	95.6	0.9	6.8	2.1	2.2	101	3.5
YB2-355L3-4	315	420	556.2	1490	95.6	0.9	6.8	2.1	2.2	101	3.5