YEJ2 Electromagnetic Brake Motor Manufacturers

General brief

YEJ2 series three phase electromagnetic brake motor is specially designed for special requirement, which confirms to JB/T6428-92 and IEC standard.

It is totally enclosed and fan-cooled motor with DC electromagnetic brake disc.

YEJ2 series electromagnetic brake induction motor could brake quickly although it losses power. YEJ2-63-90 motor quick brake time is less than 0.15s and YEJ2-10-160 motor is less than 0.20s. The motor could be slow brake through changing the connection of terminal box. It is with lower noise and reliable brake performance.

Principle of operation: When the motor has power, electromagnetic brake get 99V, 170V DC source through 220V, 380V AC power rectifier. Then armature is sucked by magnet to push brake disc in rotatable state and the motor will rotate freely. But when it losses power, electromagnet losses power, armature will be controlled by spring to push brake disc with end shield to stop the motor.

YEJ2 brake motor has the feature of reliable braking, regulated braking torque, and rotor without axial channeling move, convenient operation and maintenance.

Brake disc is installed in the end cover at non-driving side. When supply the power to brake motor, brake also work at the same time. Due to the electromagnetic suction function, electromagnet attracts armature and compression spring, brake disc separate from armature, end cover, the motor start working.

When cut off power supply, brake electromagnet lose the electromagnetic suction, spring driven armature to pressure brake disc. Under the effect of friction torque, the motor stop working immediately.

The voltage of electromagnetic brake is as following:

DC 99V for YEJ brake motor power is less than 4kW

DC 170V for YEJ brake power is 4kW and above

YEJ2 brake motor can be equipped with re-greasing system when the motor frame size is 160MM and above

YEJ2 brake motor is widely used for machinery that request rapid braking, accurate positioning, reciprocating motion, frequent starting and braking, as the main drive and auxiliary transmission.

For example, electric valve, rubber chemical machinery, metal processing machine tools, packaging machinery, woodworking machinery, food machinery, chemical machinery, textile machinery, construction machinery, gear reducer, etc.

Standard Features

Type: Three Phase Electromagnetic Brake Motor

Efficiency level: High efficiency energy saving

Frame size: 63~315 frame

Rated output: 0.12~200kW

Rated voltage: 220V, 380V, 400V, 415V, 440V, 460V, 480V, 550V

No. of poles: 2, 4, 6, 8, 10 Pole

Rated frequency (speed):

50Hz (Synchronous speed 3000/1500/1000/750/600 r/min),

60Hz (Synchronous speed 3600/1800/1200/900/720 r/min)

Mounting methods: B14, B3, B34, B35, B5, V1

Material of housing: Cast iron (160 frame and below can be alloy-aluminum)

Insulation Class: F (155℃)

Temp. Rising: ΔT=80°K (B class)

Protection Class

Electric motor: IP44, IP54, IP55

Brake: IP23

Cooling: IC411 (Totally-enclosed, fan-cooled)

Bearing type: Roller/Ball bearing

Working Duty: S1 (Continuous)

Service Factor: 1.00

Ambient Temperature: -20°C ~ 40°C

Altitude: ≦1000 m.a.s.l

Ambient humidity: ≦90%

Lubricating: With grease system

Grounding lug: on the frame and terminal box

Metric Threaded Cable Entries on the Terminal Box

Customized frame size/power

Materiel of frame: Fabricated in welded steel plate frame

Shaft: Special dimensions, double shaft end, tapered, hollow as per request

Service Factor: 1.15 or above

Insulation Class: H (180℃)

Ambient temperature: Above 40 °C (on request)

Altitude: ＞1000M (on request)

Bearing: SKF, FAG brand

Grease lubricated bearings

Space heaters

Thermostats RTD

Thermal protection PTC

Temperature detector PT100

NDE or both DE and NDE bearing are electrically insulated

Special Winding, Voltage, Frequency

Cooling: IC416 Forced cooling by independent axial fan

YEJ2 Series Three Phase Electromagnetic Brake Motor
Motor	Rated		Rated			Rated	Effi-	Power	Rated	Tst/Tn	Ist/In	Tmax/Tn	Static	Excit.	Noise	Weight
Type	power		current			speed	ciency	factor	torque				braking	voltage		Wt.
			(A)										torque
			at
	(kW)	(HP)	380V	400V	415V	(r/min)	(η%)	(cosφ)	(N.m)	times	times	times	(N.m)	(VDC)	dB(A)	(kg)
Synchronous Speed 3000 r/min (2 poles)
YEJ2-63M1-2	0.18	0.25	0.53	0.50	0.48	2720	65	0.8	0.6	2.2	5.5	2.2	4.0	99	53	12
YEJ2-63M2-2	0.25	0.34	0.69	0.66	0.63	2720	68	0.81	0.9	2.2	5.5	2.2	4.0	99	53	13
YEJ2-71M1-2	0.37	0.5	0.99	0.94	0.91	2740	70	0.81	1.3	2.2	6.1	2.2	4.0	99	55	14
YEJ2-71M2-2	0.55	0.75	1.40	1.33	1.28	2740	73	0.82	1.9	2.2	6.1	2.2	4.0	99	55	15
YEJ2-80M1-2	0.75	1	1.83	1.74	1.68	2845	75	0.83	2.5	2.2	6.1	2.3	7.5	99	56	19
YEJ2-80M2-2	1.1	1.5	2.61	2.48	2.39	2845	76.2	0.84	3.7	2.2	7	2.3	7.5	99	57	20
YEJ2-90S-2	1.5	2	3.46	3.28	3.16	2840	78.5	0.84	5.0	2.2	7	2.3	15	99	61	25
YEJ2-90L-2	2.2	3	4.85	4.61	4.45	2840	81	0.85	7.4	2.2	7.5	2.3	15	99	61	29
YEJ2-100L-2	3	4	6.34	6.03	5.81	2860	82.6	0.87	10.0	2.2	7.5	2.3	30	99	3	38
YEJ2-112M-2	4	5.5	8.20	7.79	7.51	2880	84.2	0.88	13.3	2.2	7.5	2.3	40	170	65	50
YEJ2-132S1-2	5.5	7.5	11.1	10.5	10.1	2900	85.7	0.88	18.1	2.2	7.5	2.3	80	170	68	74
YEJ2-132S2-2	7.5	10	14.9	14.1	13.6	2900	87	0.88	24.7	2.2	7.5	2.3	80	170	68	80
YEJ2-160M1-2	11	15	21.2	20.2	19.5	2930	88.4	0.89	35.9	2.2	7.5	2.3	150	170	72	134
YEJ2-160M2-2	15	20	28.6	27.2	26.2	2930	89.4	0.89	48.9	2.2	7.5	2.3	150	170	72	141
YEJ2-160L-2	18.5	25	34.7	33.0	31.8	2930	90	0.9	60.3	2.2	7.5	2.3	150	170	72	164
YEJ2-180M-2	22	30	41.0	39.0	37.6	2940	90.5	0.9	71.5	2	7.5	2.3	200	170	74	209
YEJ2-200L1-2	30	40	55.4	52.6	50.7	2950	91.4	0.9	97.1	2	7.5	2.3	300	170	77	285
YEJ2-200L2-2	37	50	67.9	64.5	62.2	2950	92	0.9	119.8	2	7.5	2.3	300	170	77	300
YEJ2-225M-2	45	60	82.1	78.0	75.2	2960	92.5	0.9	145.2	2	7.5	2.3	450	170	78	362
YEJ2-250M-2	55	75	99.8	94.8	91.4	2965	93	0.9	177.2	2	7.5	2.3	600	170	80	420
YEJ2-280S-2	75	100	135	129	124	2970	93.6	0.9	241.2	2	7.5	2.3	850	170	80	560
YEJ2-280M-2	90	125	160	152	147	2970	93.9	0.91	289.4	2	7.5	2.3	850	170	80	620
YEJ2-315S-2	110	150	195	186	179	2975	94	0.91	353.1	1.8	7.1	2.2	2000	170	81	1000
YEJ2-315M-2	132	180	233	222	214	2975	94.5	0.91	423.7	1.8	7.1	2.2	2000	170	81	1050
YEJ2-315L1-2	160	220	279	265	256	2975	94.6	0.92	513.6	1.8	7.1	2.2	2000	170	85	1100
YEJ2-315L2-2	200	270	348	331	319	2975	94.8	0.92	642.0	1.8	7.1	2.2	2000	170	85	1150
Synchronous Speed 1500 r/min (4 poles)
YEJ2-63M1-4	0.12	0.16	0.44	0.42	0.41	1310	57	0.72	0.9	2.1	4.4	2.2	4.0	99	44	13
YEJ2-63M2-4	0.18	0.25	0.62	0.59	0.57	1310	60	0.73	1.3	2.1	4.4	2.2	4.0	99	44	14
YEJ2-71M1-4	0.25	0.34	0.79	0.75	0.72	1330	65	0.74	1.8	2.1	5.2	2.2	4.0	99	45	15
YEJ2-71M2-4	0.37	0.5	1.12	1.06	1.02	1330	67	0.75	2.7	2.1	5.2	2.2	4.0	99	45	16
YEJ2-80M1-4	0.55	0.75	1.57	1.49	1.44	1390	71	0.75	3.8	2.4	5.2	2.3	7.5	99	46	19
YEJ2-80M2-4	0.75	1	2.05	1.95	1.88	1390	73	0.76	5.2	2.3	6	2.3	7.5	99	46	20
YEJ2-90S-4	1.1	1.5	2.85	2.71	2.61	1390	76.2	0.77	7.6	2.3	6	2.3	15	99	48	26
YEJ2-90L-4	1.5	2	3.68	3.49	3.37	1390	78.5	0.79	10.3	2.3	6	2.3	15	99	48	31
YEJ2-100L1-4	2.2	3	5.09	4.84	4.67	1410	81	0.81	14.9	2.3	7	2.3	30	99	52	39
YEJ2-100L2-4	3	4	6.73	6.39	6.16	1410	82.6	0.82	20.3	2.3	7	2.3	30	99	52	43
YEJ2-112M-4	4	5.5	8.80	8.36	8.06	1440	84.2	0.82	26.6	2.3	7	2.3	40	170	53	50
YEJ2-132S-4	5.5	7.5	11.7	11.2	10.8	1440	85.7	0.83	36.5	2.3	7	2.3	80	170	59	78
YEJ2-132M-4	7.5	10	15.6	14.8	14.3	1440	87	0.84	49.7	2.3	7	2.3	80	170	59	91
YEJ2-160M-4	11	15	22.5	21.4	20.6	1460	88.4	0.84	72	2.2	7	2.3	150	170	62	140
YEJ2-160L-4	15	20	30.0	28.5	27.5	1460	89.4	0.85	98.1	2.2	7.5	2.3	150	170	62	161
YEJ2-180M-4	18.5	25	36.3	34.5	33.3	1470	90	0.86	120	2.2	7.5	2.3	200	170	63	210
YEJ2-180L-4	22	30	42.9	40.8	39.3	1470	90.5	0.86	143	2.2	7.5	2.3	200	170	63	218
YEJ2-200L-4	30	40	58.0	55.1	53.1	1470	91.4	0.86	195	2.2	7.2	2.3	300	170	64	315
YEJ2-225S-4	37	50	70.2	66.7	64.3	1475	92	0.87	240	2.2	7.2	2.3	450	170	65	337
YEJ2-225M-4	45	60	85.0	80.7	77.8	1475	92.5	0.87	291	2.2	7.2	2.3	450	170	65	345
YEJ2-250M-4	55	75	103	98.1	94.6	1480	93	0.87	355	2.2	7.2	2.3	600	170	68	440
YEJ2-280S-4	75	100	140	133	128	1480	93.6	0.87	484	2.2	7.2	2.3	850	170	69	570
YEJ2-280M-4	90	125	167	159	153	1480	93.9	0.87	581	2.2	7.2	2.3	850	170	69	670
YEJ2-315S-4	110	150	201	191	184	1480	94.5	0.88	710	2.1	6.9	2.2	2000	170	77	1000
YEJ2-315M-4	132	180	240	228	220	1480	94.8	0.88	852	2.1	6.9	2.2	2000	170	77	1050
YEJ2-315L1-4	160	220	288	273	264	1480	94.9	0.89	1032	2.1	6.9	2.2	2000	170	82	1100
YEJ2-315L2-4	200	270	360	342	329	1480	94.9	0.89	1291	2.1	6.9	2.2	2000	170	82	1150
Synchronous Speed 1000 r/min (6 poles)
YEJ2-71M1-6	0.18	0.25	0.74	0.70	0.68	850	56	0.66		1.9	4	2	4.0	99	43	9.5
YEJ2-71M2-6	0.25	0.34	0.95	0.90	0.87	850	59	0.68		1.9	4	2	4.0	99	43	11
YEJ2-80M1-6	0.37	0.5	1.30	1.23	1.19	885	62	0.7	4	1.9	4.7	2.1	7.5	99	44	20
YEJ2-80M2-6	0.55	0.75	1.79	1.70	1.64	885	65	0.72	5.9	1.9	4.7	2.1	7.5	99	44	21
YEJ2-90S-6	0.75	1	2.29	2.18	2.10	910	69	0.72	7.9	2	5.5	2.1	15	99	45	27
YEJ2-90L-6	1.1	1.5	3.18	3.02	2.91	910	72	0.73	11.5	2	5.5	2.1	15	99	45	29
YEJ2-100L-6	1.5	2	4.00	3.80	3.66	920	76	0.75	15.6	2	5.5	2.1	30	99	49	38
YEJ2-112M-6	2.2	3	5.57	5.29	5.10	935	79	0.76	22.5	2	6.5	2.1	40	99	53	52
YEJ2-132S-6	3	4	7.40	7.03	6.78	960	81	0.76	29.8	2.1	6.5	2.1	80	99	53	73
YEJ2-132M1-6	4	5.5	9.75	9.26	8.93	960	82	0.76	39.8	2.1	6.5	2.1	80	170	55	83
YEJ2-132M2-6	5.5	7.5	12.9	12.3	11.8	965	84	0.77	54.4	2.1	6.5	2.1	80	170	55	94
YEJ2-160M-6	7.5	10	17.2	16.3	15.8	970	86	0.77	73.8	2	6.5	2.1	150	170	57	135
YEJ2-160L-6	11	15	24.5	23.3	22.4	970	87.5	0.78	108	2	6.5	2.1	150	170	57	163
YEJ2-180L-6	15	20	31.6	30.0	28.9	970	89	0.81	148	2	7	2.1	200	170	58	223
YEJ2-200L1-6	18.5	25	38.6	36.6	35.3	980	90	0.81	180	2.1	7	2.1	300	170	61	277
YEJ2-200L2-6	22	30	44.7	42.5	41.0	980	90	0.83	214	2.1	7	2.1	300	170	61	295
YEJ2-225M-6	30	40	59.3	56.3	54.3	980	91.5	0.84	292	2	7	2.1	450	170	62	345
YEJ2-250M-6	37	50	71.1	67.5	65.1	980	92	0.86	361	2.1	7	2.1	600	170	63	430
YEJ2-280S-6	45	60	85.9	81.7	78.7	980	92.5	0.86	439	2.1	7	2	850	170	64	550
YEJ2-280M-6	55	75	105	99.5	95.9	980	92.8	0.86	536	2.1	7	2	850	170	64	620
YEJ2-315S-6	75	100	142	135	130	985	93.5	0.86	727	2	6.7	2	2000	170	68	1000
YEJ2-315M-6	90	125	170	161	155	985	93.8	0.86	873	2	6.7	2	2000	170	68	1050
YEJ2-315L1-6	110	150	207	196	189	985	94	0.86	1066	2	6.7	2	2000	170	73	1100
YEJ2-315L2-6	132	180	245	232	224	985	94.2	0.87	1280	2	6.7	2	2000	170	73	1150
Synchronous Speed 750 r/min (8 polos)
YEJ2-80M1-8	0.18	0.25	0.88	0.84	0.80	645	51	0.61	2.7	1.8	3.3	1.9	7.5	99	54	19
YEJ2-80M2-8	0.25	0.34	1.15	1.10	1.06	645	54	0.61	3.7	1.8	3.3	1.9	7.5	99	54	21
YEJ2-90S-8	0.37	0.5	1.49	1.41	1.36	670	62	0.61	5.3	1.8	4	1.9	15	99	58	25
YEJ2-90L-8	0.55	0.75	2.17	2.07	1.99	670	63	0.61	7.8	1.8	4	2	15	99	58	27
YEJ2-100L1-8	0.75	1	2.40	2.28	2.19	680	71	0.67	10.5	1.8	4	2	30	99	45	32
YEJ2-100L2-8	1.1	1.5	3.32	3.15	3.04	680	73	0.69	15.4	1.8	5	2	30	99	45	39
YEJ2-112M-8	1.5	2	4.40	4.18	4.03	690	75	0.69	20.8	1.8	5	2	40	99	49	50
YEJ2-132S-8	2.2	3	6.04	5.73	5.53	705	78	0.71	29.8	1.8	6	2	80	99	53	73
YEJ2-132M-8	3	4	7.90	7.51	7.24	705	79	0.73	40.6	1.8	6	2	80	99	53	79
YEJ2-160M1-8	4	5.5	10.3	9.76	9.41	720	81	0.73	53.1	1.9	6	2	150	170	55	134
YEJ2-160M2-8	5.5	7.5	13.6	12.9	12.5	720	83	0.74	73	2	6	2	150	170	55	140
YEJ2-160L-8	7.5	10	17.8	16.9	16.3	720	85.5	0.75	99.5	2	6	2	150	170	57	164
YEJ2-180L-8	11	15	25.1	23.9	23.0	730	87.5	0.76	144	2	6.6	2	200	170	57	212
YEJ2-200L-8	15	20	34.1	32.4	31.2	730	88	0.76	196	2	6.6	2	300	170	58	295
YEJ2-225S-8	18.5	25	41.1	39.0	37.6	730	90	0.76	242	1.9	6.6	2	450	170	61	319
YEJ2-225M-8	22	30	47.4	45.0	43.4	730	90.5	0.78	288	1.9	6.6	2	450	170	61	345
YEJ2-250M-8	30	40	63.4	60.2	58.1	735	91	0.79	390	1.9	6.6	2	600	170	62	420
YEJ2-280S-8	37	50	77.8	73.9	71.2	735	91.5	0.79	481	1.9	6.6	2	850	170	63	540
YEJ2-280M-8	45	60	94.1	89.4	86.1	735	92	0.79	585	1.9	6.6	2	850	170	63	610
YEJ2-315S-8	55	75	111	106	102	735	92.8	0.81	715	1.8	6.6	2	2000	170	68	1000
YEJ2-315M-8	75	100	151	144	139	735	93	0.81	974	1.8	6.6	2	2000	170	68	1050
YEJ2-315L1-8	90	125	178	169	163	735	93.8	0.82	1169	1.8	6.6	2	2000	170	73	1100
YEJ2-315L2-8	110	150	217	206	199	735	94	0.82	1429	1.8	6.6	2	2000	170	73	1150
Synchronous Speed 600 r/min (10 poles)
YEJ2-315S-10	45	60	99.6	94.7	91.2	590	91.5	0.75	728	1.5	6.2	2	2000	170	65	1000
YEJ2-315M-10	55	75	121	115	111	590	92	0.75	890	1.5	6.2	2	2000	170	65	1050
YEJ2-315L1-10	75	100	162	154	148	590	92.5	0.76	1214	1.5	6.2	2	2000	170	68	1100
YEJ2-315L2-10	90	125	191	181	175	590	93	0.77	1457	1.5	6.2	2	2000	170	68	1150

YEJ2 Series Electromagnetic Brake Motor