OM1 Moulded Case Circuit Breaker

1. Application

Series OM1 moulded case circuit breaker

MCCB is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 550V and 800V and used for circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1250A for infrequent changing over and starting of the motors.

The MCCB  circuit breaker conform of the IEC60947-2 standard.

Ampere: 63A, 100A, 125A, 225A, 400A, 630A, 1250A

Pole: 3P, 4P

2. Picture of moulded case circuit breaker

    

    

3. printed by a laser machine

  

4. Inside of the  OM1 Moulded Case Circuit Breaker

       

5. Main Technical Specification

Table A

Type	Rated current (A)	Polenum-ber	Ratedinsui-atingvolt-age(V)	Rated operat-ingvolt-age(V)	Arcing- over distance (mm)	Ultimate short circuit breaking capacity (KA)	Servies short circuit breaking capacity (KA)	Operation perform- ance		Utiliza-tioncat-egory
								Load	Unload
OM1-63L	(6),10 16,20 25 ,32 40,50 63	3, 4	500V	400V	0	25	18	1500	8500	A
OM1-63M					0	50	35
OM1-100L	(10),16 20,25 32,40 50,63 80,100		800V		0(≤50)	35	22
OM1-100M					0(≤50)	50	35
OM1-100H					0(≤50)	85	50	1000	7000
OM1-225L	100,125 160,180 200,225				≤50	35	22
OM1-225M					≤50	50	35
OM1-225H					≤50	85	50	1000	4000
OM1-400L	225,250 315,350 400				≤50	50	35
OM1-400M					≤100	65	42
OM1-630L	400,500 630				≤100	50	35
OM1-630M					≤100	65	42
OM1-630H					≤100	100	65
OM1-800M	630,700 800	3			≤100	75	50
OM1-800H					≤100	100	65
OM1-1250M	1000,1250				≤100	100	65
OM1-1250H					≤100	125	75
OM1-1600M	1600				≤100	150	80

Note: 6A without thermal protection

The N-pole of four-poles breaker is sited at the right side of the product has four types:
Type A: Without current trip-lease on N pole which making all the time, not closing and opening with the other three poles.
Type B: Without current trip-release on N pole which closing and opening with the other poles.
Type C: With current trip-release which closing and opening with the other three poles.
Type D: With current trip-release which making all the time not closing and opening with the other three poles.

6. Protection Characteristic
The thermodynamic release of a circuit breaker provides the feature of inverse time-delay, while the magnetic release is the instantaneous operation as shown on table 2(distribution circuit breaker) and table 3 (motor protection circuit breaker).

Table B

Rated current of release (A)	Thermodynamic release( ambient temperature ) land +40°C marine +45°C		Operating current of magnetic release (A)
	1.05In(cold state) Inoperative time(h)	1.30In(heat state) Operative time(h)
10≤In≤63	≥ 1	< 1	10In±20%
63<In≤100	≥ 2	< 2
100≤In≤800	≥ 2	< 2	5In±20% 10In±20%

Table C

Rated current	Thermodynamic release ( ambient temperature ) land +40°C marine +45°C				Operating current of magnetic release (A)
of release (A)	1.0In(cold state) non-trip time(h)	1.20In(heat state) trip time (h)	1.50In(heat state) trip time (h)	7.2In(cold state) trip time(h)
10 ≤ In ≤ 225	≥ 2	<2	≤ 4min	4s < Tp ≤ 10s	12In±20%
225 ≤ In ≤ 630			≤ 8min	6s < Tp ≤ 20s

7. Outline and Installation Dimension

Type	Outline Dimensions(mm)
	Front panel connection
	W	W1	L	L1	L2	H	H1	H2	H3	H4	C	D	E	F	G	W2	W3
OM1-63L	76	50	135	170	117	74	92		7	4	85	28.5	48	22	14	100	75
OM1-63M	76	50	135	170	117	82	98.5	28	7	4	85	28.5	48	22	14	100	75
OM1-100L	92	60	150	185	132	68	86	24	7	4	88	35.5	50	22	17.5
OM1-100M	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5	122	90
OM1-100H	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5
OM1-225L	107	70	165	215	144	86	110	24	5	4	102	31.5	50	22	17
OM1-225M	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17	142	105
OM1-225H	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17
OM1-400L	150	96	257	357	224	105	155	38	8	6	128	64.5	89	65	φ6	198	144
OM1-400M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9
OM1-630L	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9	240	174
OM1-630M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9
OM1-630H	210	140	280	380	243	106	145	33	30	128
OM1-800M	210	140	280	380	243	106	145	33	30	128
OM1-800H	210	140	280	380	243	106	145	33	30	128
OM1-1250M	210	140	393			200
OM1-1250H	210	140	393			200
OM1-1600M	210	140	393			200

Type	Outline Dimensions(mm)															Installation Dimensions
	Back panel connection					Plug-in connection
	L4	H5	H6	φD	φD1	L5	L6	H7	H8	H9	H10	J	K	φd1	M	A	B	φd
OM1-63L	117	44	66	8	8											25	117	3.5
OM1-63M	117	44	66	8	8											25	117	3.5
OM1-100L	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-100M	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-100H	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-225L	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-225M	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-225H	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-400L	194	60	120	33	33	169	279	60	83.5	106.5	21	129	60	8.5	M10	44	194	7
OM1-400M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630L	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630H		128														70	243	7.2
OM1-800M		128														70	243	7.2
OM1-800H		128														70	243	7.2
OM1-1250M
OM1-1250H
OM1-1600M

le> OM1-1250H 210 140 393 200 OM1-1600M 210 140 393 200

Type	Outline Dimensions(mm)															Installation Dimensions
	Back panel connection					Plug-in connection
	L4	H5	H6	φD	φD1	L5	L6	H7	H8	H9	H10	J	K	φd1	M	A	B	φd
OM1-63L	117	44	66	8	8											25	117	3.5
OM1-63M	117	44	66	8	8											25	117	3.5
OM1-100L	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-100M	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-100H	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
OM1-225L	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-225M	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-225H	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
OM1-400L	194	60	120	33	33	169	279	60	83.5	106.5	21	129	60	8.5	M10	44	194	7
OM1-400M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630L	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
OM1-630H		128														70	243	7.2
OM1-800M		128														70	243	7.2
OM1-800H		128														70	243	7.2
OM1-1250M
OM1-1250H
OM1-1600M