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1. Ex-proof marks: EXdaaMb aaEXdaaAT4 GbaaEXdaaBT4 Gb, 2. Mainly used in oil field, chemical industry, minecoal underground,etc. - details see: https://www.machineto.com/yb3-series-underground-three-phase-ac-coal-mine-ex-proof-electric-motor-10236285

YB3 series explosion-proof three phase induction motor with fully sealed, fan-cooled, squirrel cage structure with features of high efficiency, low noise, small vibration, high stall torque, reliable operation and beautiful outward. The

energy saving level of YB3 motor is higher than GB18613-2012 standard IE3, near to IE2. It is a new type of

explosion-proof motor that is being strongly promoted.

Mainly used in oil field, chemical industry, tunnel construction and explosive environment of mine nonextractive

surface.

YB3 motor is in line with GB3836.1-2000 (Explosive Atmosphere Part one: Equipment General Requirement) and

GB3836.2-2010(Explosive Atmosphere-Part two: Equipment Protected by Flameproof Enclosures “d”). Marks of explosion-proof :

EXdⅠMb;EXdⅡAT4 Gb;EXd BT4 Gb

protection class: IP55,

cooling method: IC411,

insulation class: F

work way: S1

Voltage : 380V, 660V, 1140V and 380V/660V, 660V/1140V

Type	Rated Output		Weight	Type	Rated Output		Weight
	kW	hp	kg		kW	hp	kg
100L-2	3	4	71	100L1-4	2.2	3	72
112M-2	4	5.5	89	100L2-4	3	4	90
132S1-2	5.5	7.5	105	112M-4	4	5.5	105
132S2-2	7.5	10	112	132S-4	5.5	7.5	112
160M1-2	11	15	161	132M-4	7.5	10	118
160M2-2	15	20	174	160M-4	11	15	174
160L-2	18.5	25	193	160L-4	15	20	195
180M-2	22	30	253	180M-4	18.5	25	255
200L1-2	30	40	333	180L-4	22	30	278
200L2-2	37	50	351	200L-4	30	40	386
225M-2	45	60	462	225S-4	37	50	460
250M-2	55	75	530	225M-4	45	60	478
280S-2	75	100	720	250M-4	55	75	645
280M-2	90	125	837	280S-4	75	100	765
315S-2	110	150	1265	280M-4	90	125	898
315M-2	132	175	1335	315S-4	110	150	1326
315L1-2	160	220	1556	315M-4	132	175	1378
355S1-2	185	251	1730	315L1-4	160	220	1520
355S2-2	200	270	1840	355S1-4	180	245	1635
355M1-2	220	299	1860	355S2-4	200	270	1725
355M2-2	250	340	2100

More types you need pls contact me, thanks so much.