MS1 Series Moulded Case Circuit Breaker

 

1. Main Technical Specification (table1).

 

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
MS1-63L	(6),10 16,20 25 ,32 40,50 63	3, 4	500V	400V	0	25	18	1500		A
MS1-63M					0	50	35
MS1-100L	(10),16 20,25 32,40 50,63 80,100		800V		0(<=50)	35	22
MS1-100M					0(<=50)	50	35
MS1-100H					0(<=50)	85	50	1000
MS1-225L	100,125 160,180 200,225 250				<=50	35	22
MS1-225M					<=50	50	35
MS1-225H					<=50	85	50	1000
MS1-400L	225,250 315,350 400				<=50	50	35
MS1-400M					<=100	65	42
MS1-630L	400,500 630				<=100	50	35
MS1-630M					<=100	65	42
MS1-630H					<=100	100	65
MS1-800M	630,700 800	3			<=100	75	50
MS1-800H					<=100	100	65
MS1-1250M	1000,1250				<=100	100	65
MS1-1250H					<=100	125	75
MS1-1600M	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.

 

2. 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).

Table2.

Rated current of release (A)	Rated current of release (A)		Operating current of
	1.05In (cold state) Inoperative time(h)	1.30In (heat state) Operative time(h)	Magnetic release (A)
10<=In<=63	>= 1	< 1	10In±20%
63<In<=100	>= 2	< 2
100<=In<=800	>= 2	< 2	5In±20% 10In±20%

Table3.

Rated current	Thermodynamic release (ambient temperature) land +40°C marine +45°C				Operating current of
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)	Magnetic release (A)
10 <= In <= 225	>= 2	<2	<= 4min	4s < Tp <= 10s	12In±20%
225 <= In <= 630			<= 8min	6s < Tp <= 20s

 

3. Accessories of circuit breaker.

3.1 The external accessories of the breaker.

1) Wiring diagram of type CDM electromagnetic operation device(fitting AM1-63,100,225) seethe following drawing (wiring diagram of the external accessories of the breaker in the dotted frame)

Code description: SB1 SB2 stand for push button.(provided by users themselves) Number “1” “2” “3” stand for number of wiring terminals.

Voltage rating: AC50Hz 230V 400V DC 220V.

 

2) Wiring diagram of type CD motor-driven operation device (fitting AM1-400 630 800) seebelows (wiring diagram of the external accessories of the breaker in the dotted frame).

Code description: SB1 SB2 stand for push button. (provided by users themselves) “X” stands for line connection terminals Voltage rating: AC50Hz 230V 400V DC 220V.

 

Rotary handle operation device.

The mechanism is used in moulded case circuit breaker to operate the draw-out panel. Power distribution panel and supply box outside the panel by turning the handle ,and to ensure thedoor of panel would not be openned when the breaker being on. The hand-drive mechanism can be equiped with two types of operation, one is “A” model square handle , the other is “B” model round handle.

 

3.2 Release pattern and accessories code.

According to user’s demands, accessories could lead to direct wire outcoming or line wiring terminals could be added (please mark out in case of making order).

 

Under-voltage release.

Wring diagram of the under-voltage module connected externally (the internal accessories in the dotted frame)Ue: AC50Hz 230V, 400V.

When the operation voltage is 35%~70% of the rated voltage, the under-voltage release should make the breaker trip correctly.When the operation voltage is 85%~110% of the rated voltage, the under-voltage release should make the breaker close.In case of the operation voltage less than 35% of the rated voltage, the under-voltage should prevent the breaker from closing.Note: Only the under-voltage release should be energized in advanced, the breaker could berecramped and turned-on, otherwise the breaker will be damaged.

 

Shunt release.

Scheme of wiring(the internal accessories in the dotted frame)”K” is the slow motion switch normal-close contact connect the coil in series in the shunt release.It turns-on or turns-off voluntarily as soon as the breaker on or off.

Voltage rating: AC50Hz 230V or 400V, DC 110V 220VThe shunt release should make the breaker trip reliably when the operation voltage is 70%~110%of the rated control voltage.

 

Type	Outline Dimensions(mm) Front panel connection
	W	W1	L	L1	L2	H	H1	H2	H3	H4	C	D	E	F	G	W2	W3
MS1-63L	76	50	135	170	117	74	92		7	4	85	28.5	48	22	14	100	75
MS 1-63M	76	50	135	170	117	82	98.5	28	7	4	85	28.5	48	22	14	100	75
MS1-100L	92	60	150	185	132	68	86	24	7	4	88	35.5	50	22	17.5
MS1-100M	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5	122	90
MS1-100H	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5
MS1-225L	107	70	165	215	144	86	110	24	5	4	102	31.5	50	22	17
MS1-225M	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17	142	105
MS1-225H	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17
MS1-400L	150	96	257	357	224	105	155	38	8	6	128	64.5	89	65	?6	198	144
MS1-400M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	?9
MS1-630L	182	116	270	370	234	110	160	43	8	6	134	70	89	65	?9	240	174
MS1-630M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	?9
MS1-630H	210	140	280	380	243	106	145