Model No: YeM6

YeM6 MCCB - Molded Case Circuit Breaker for High-Performance Electrical Protection

The YeM6 MCCB offers robust circuit protection with a rated voltage of up to 400V and current up to 1600A. Ideal for industrial applications, it protects against overload, short circuit, and undervoltage. With IEC60947-2 compliance, it ensures reliable power distribution and electrical safety.

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MCCB

YeM6

General

YeM6 rated in sulation volage is 1000V, is applied to distribu- tion network circuit of AC50/60Hz, rated working voltage up to 400V, rated working current up to 1600A, which is for electrio- energy distribution, circuit protection, protecting power supply facility from destroying by the fault of overloading, short circuit and undervoltage,meanwhile it is also used for proteotion from unfrequent starting,over loading.short circuit and unervdtage of the eletromotor This breaker has sueh charaoteristics of

company volume,high short circuit interrupting capacty,short- flacharoing and etc which is a ideal product for users,This

breaker can be installed vertically(upright),and also horizontal- ly.

Standard : IEC60947-2

Operating conditions

▪ Altitude less than 2000m;

▪ Ambient medium temperature is rfom-50°Cto + 40 °C (+ 45 °C for shipping product);

▪ Can withstand moist cuir;

▪ Can with stand mold;

▪ Can with stand nuclear radiaton;

▪ Max inclination is 22.5°;

▪ lt can still work reliably if the product subjects to the normal vibration from ships;

▪ It can still work reliably if the product subjects to the earthquake(4g);

▪ Put in the place where is no explosion danger and conductive dust, cant corrode metel and destroy the insnlaton sleet;

NOTE:

• 200: Circuit breaker with electromagnetic release only;300: circuitbreaker with thermal-magnetic release;000: Circuit breaker without overcurrent release (disconnector).

• For YeM6-125,250 two-pole products.there are only210/310/220/320/230/330; for YeM6-63/125/250 four-pole circuit breakers, there is no 240/340/360 for N pole A and D 260/268/368;

• For YeM6-400, YeM6-830 and YeM6-800,the auxilary conacts in the 248/348/278/378 specifications are a pair of- conacts (ie,one normally open,one normaly cloed), and the auxiliary contacts in the 268/368 specifications. There are three pairs of contats (ie three normally open and three normally closed); the number of auxiliary contacts of

other specifications YeM6-400 and above are two grouns, and YeM6-250 and below are a grounp.

• For YeM6-63, YeM6-125, YeM6-250, 220/320/240/340/270/370 specifications of the auxiliary contact can be used for two pairs of contacts (ie two nomally open, two normally closed), 260/360 can For three pairs of con- tacts (ie three normally open, three normally closed), please specify when ordering.

Protection characteristics

• Trip performance

• For power distribution

Table 1

Release Rated Operating Current(A)	Thermal release(reference temperature 40°C)		Operating current of electromagnetic release(A)	Remark
Release Rated Operating Current(A)	1.05 In(cold state) lnactivity time (h)	1.30 In(hot state) lnactivity time (h)	Operating current of electromagnetic release(A)	Remark
10	≥ 1	< 1	10In+20%	Distribution protection type Note:1600Afor 7In+20%
63	≥ 2	< 2	10In+20%
125	≥ 2	< 2	5In+20% 7In+20% 10In+20%

Note: the rated current is less than 160A, and there is no magnetic trip with 5in current

• For motor distribution

Release Rated

Operating Current (A)

Thermal release(reference temperature 40°C)

Operating current of

electromagnetic release(A)

1.0 In(cold state) lnactivity time (h)

1.20 In(hot state) lnactivity time (h)

1.50 In(hot state) lnactivity time (h)

7.20 In(coldstate) lnactivity time (h)

≥ 2

≤ 2

8 min

12In+20%; 7ln±20%

Power loss

• Circuit breaker power loss

Table 2

Type	Electric current(A)	Three-pole total power loss(W)
Type	Electric current(A)	Wiring before and after the board	Wiring in front of plug-in board	Wiring after plug-in board
YeM6-63 (Directheating)(10A~25A)	25	28	/	32
YeM6-125 (Direct heating)(16A-25A)	25	40	42	45
YeM6-63 (Interheat)(32A~63A)	63	20	/	24
YeM6-125 (Interheat)(32A-100A)	125	35	37	40
YeM6-250	250	62	66	70
YeM6-400	400	115	120	125
YeM6-630	630	187	193	200
YeM6-800	800	262	/	300
YeM6-1250/1600	1600	286	/	/

Derating factory

• Derating factor of circuit breaker ambient temperature change

Table 2

Type	Electric	Three-pole total power loss(W)
Type	+40°C	+45°C	+50°C	+55°C	+60°C
YeM6-63	1	0.94	0.88	0.81	0.74
YeM6-125	1	0.96	0.91	0.85	0.78
YeM6-250	1	0.97	0.94	0.90	0.86
YeM6-400	1	0.95	0.89	0.82	0.75
YeM6-630	1	0.94	0.87	0.82	0.76
YeM6-800	1	0.94	0.87	0.80	0.72
YeM6-1250/1600	1	0.92	0.85	0.79	0.70

Note: The above derating factors are measured under the rated current through the shell.

Overall and mounting dimensions(mm)

Type	Pole	Dimensions (mm)						Installation size (mm)			Backplane wiring size (mm)
		L	L1	W	H	H1	H2	a	b	Φd	a1	b1	d1	H3	H4
YeM6-63S	3	135	21	76	89.5	72	18	25	117	3.5	25	117	18	52	75
	4			103				50
YeM6-63M	3			76	99	81	28	25
	4			103				50
YeM6-125S	2	150	51	65	87	68	24	...	129	4.5	30	132	22	65	100
	3			92				30
	4			121				60
YeM6-125M	2			65	103.5	85	23	...
	3			92				30
	4			121				60
YeM6-250S	2	164	64	75	108	87	24	...	126	5.5	35	144	24	70	110
	3			107				35
	4			142				70
YeM6-250M	2			75	124.5	104	24	...
	3			107				35
	4			142				70
YeM6-400	3	257	105	150	153	106	38	44	197	7	48	224	32	48.5	108.5
	4			197				94
YeM6-630	3	270	105	180	157	111	43	58	200	7	58	234	40	70	120
	4			240				116
YeM6-800	3	280	105	210	158	116	42	70	243	7	70	243	48	75	125
	4			280				140

Type	Pole	Dimensions (mm)								Installation size (mm)			Backplane wiring size (mm)
Type	Pole	L	L1	L2	W	H	H1	H2	H3	a	a1	a2	b	b1	b2	Φd	Φd1
YeM6-1250	3	330	466	68	210	190	139	14	45	70	70	107	300	370	436	9.5	12.9
YeM6-1250	4	330	466	68	280	190	139	14	45	70	70	107	300	370	436	9.5	12.9
YeM6-1600	3	330	510	90	210	190	139	16	45	70	70	107	300	390	470	9.5	12.9
YeM6-1600	4	330	510	90	280	190	139	16	45	70	70	107	300	390	470	9.5	12.9

Type	W	L	A	H1	G	G1	a	b	d
YeM6-63	75	135	18	28	18	16	50	60	5.5
YeM6-125	91	168	38	50	33	28	56	56	6.5
YeM6-250	107	186	46	50	33	37	54	54	6.5
YeM6-400	149	280	55	60	38	46	129	129	8.5
YeM6-630	182	300	65	60	39	50	123	123	8.5
YeM6-800	212	305	62	87	60	22	146	146	11