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1. Application
SM1 series moulded case circuit breaker is one of products developed and manufactured by adopting international advanced technology. It is supplied with rated insulating voltage 550 and 800V and used for circuit of AC 50/60Hz, rated operating voltage AC 400V (or below), rated operating current up to 1600A for infrequent changing over and starting of the motors.The products conforms to IEC60947-2 standard.

2. 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
SM1-63L	(6),10 16,20 25 ,32 40,50 63	3, 4	500V	400V	0	25	18	1500	8500	A
SM1-63M					0	50	35
SM1-100L	(10),16 20,25 32,40 50,63 80,100		800V		0(≤50)	35	22
SM1-100M					0(≤50)	50	35
SM1-100H					0(≤50)	85	50	1000	7000
SM1-225L	100,125 160,180 200,225				≤50	35	22
SM1-225M					≤50	50	35
SM1-225H					≤50	85	50	1000	4000
SM1-400L	225,250 315,350 400				≤50	50	35
SM1-400M					≤100	65	42
SM1-630L	400,500 630				≤100	50	35
SM1-630M					≤100	65	42
SM1-630H					≤100	100	65
SM1-800M	630,700 800	3			≤100	75	50
SM1-800H					≤100	100	65
SM1-1250M	1000,1250				≤100	100	65
SM1-1250H					≤100	125	75
SM1-1600M	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.

3. 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)	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%

Table3

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

4. Accessories of Circuit breaker
4.1 The external accessories of the breaker
Motor-driven operation device
1) Wiring diagram of type CDM electromagnetic operation device(fitting SM1-63,100,225) 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 SM1-400 630 800) 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. Powerdistribution 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" modelsquare handle , the other is "B" model round handle.

4.2 Release pattern and accessories code

SHT: Shunt release; UVR: Under-voltage release;AX: Auxiliary contact; AL: Alarm contact

Release patternand accessories code	Name/Type	SM1-63, 100, 225	SM1-400	SM1-630	SM1-800
200, 300	No accessories	200: magnetic release (only short circuit protection)300: thermal magnetic release(both overload and short circuit protection)
208, 308	Alarm contact
210, 310	Shunt release
220, 320	Auxiliary contact
230, 330	Under-voltage release
240, 340	Shunt release Auxiliary contact
250, 350	Shunt release Under-voltage release
260, 360	Two group of auxiliary contact
270,370	Under-voltage release Auxiliary contact
218, 318	Shunt release Alarm contact
228, 328	Alarm contact Auxiliary contact
238, 338	Under-voltage releaseAlarm contact
248, 348	Shunt release, Alarm contact,Auxiliary contact
268, 368	Two group of auxiliary contact,Alarm contact
278, 378	Shunt release, Alarm contact, Under-voltage release

According to user's demands, accessories could lead to direct wire outcoming or line wiringterminals 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 inthe dotted frame)Ue: AC50Hz 230V, 400V

When the operation voltage is 35%~70% of the rated voltage, the under-voltage release shouldmake the breaker trip correctly.When the operation voltage is 85%~110% of the rated voltage, the under-voltage release shouldmake the breaker close.In case of the operation voltage less than 35% of the rated voltage, the under-voltage shouldprevent 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.

Alarm contact
The position of the breaker in "off" or "on"
The position of the breaker in "free trip" (alarm)	B11 and B12 switch from "close" to "open", statusof B11 and B14 switch from "open" to "close"

Auxiliary Contact
When the breaker is in"off"		For the breaker with frame current400A and above
		For the breaker with frame current225A and below
When the breaker is in"on"	When the breaker is in "off", the contacts switch from "close" to "open".When the breaker is in "off",the contacts switch from "open"to close"

, ,

Type	Outline Dimensions(mm)
	Front panel connection
	W	W1	L	L1	L2	H	H1	H2	H3	H4	C	D	E	F	G	W2	W3
SM1-63L	76	50	135	170	117	74	92		7	4	85	28.5	48	22	14	100	75
SM1-63M	76	50	135	170	117	82	98.5	28	7	4	85	28.5	48	22	14	100	75
SM1-100L	92	60	150	185	132	68	86	24	7	4	88	35.5	50	22	17.5
SM1-100M	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5	122	90
SM1-100H	92	60	150	185	132	86	104	24	7	4	88	35.5	50	22	17.5
SM1-225L	107	70	165	215	144	86	110	24	5	4	102	31.5	50	22	17
SM1-225M	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17	142	105
SM1-225H	107	70	165	215	144	103	127	24	5	4	102	31.5	50	22	17
SM1-400L	150	96	257	357	224	105	155	38	8	6	128	64.5	89	65	φ6	198	144
SM1-400M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9
SM1-630L	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9	240	174
SM1-630M	182	116	270	370	234	110	160	43	8	6	134	70	89	65	φ9
SM1-630H	210	140	280	380	243	106	145	33	30	128
SM1-800M	210	140	280	380	243	106	145	33	30	128
SM1-800H	210	140	280	380	243	106	145	33	30	128
SM1-1250M	210	140	393			200
SM1-1250H	210	140	393			200
SM1-1600M	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
SM1-63L	117	44	66	8	8											25	117	3.5
SM1-63M	117	44	66	8	8											25	117	3.5
SM1-100L	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-100M	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-100H	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-225L	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-225M	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-225H	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-400L	194	60	120	33	33	169	279	60	83.5	106.5	21	129	60	8.5	M10	44	194	7
SM1-400M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630L	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630H		128														70	243	7.2
SM1-800M		128														70	243	7.2
SM1-800H		128														70	243	7.2
SM1-1250M
SM1-1250H
SM1-1600M

le> SM1-1250H 210 140 393 200 SM1-1600M 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
SM1-63L	117	44	66	8	8											25	117	3.5
SM1-63M	117	44	66	8	8											25	117	3.5
SM1-100L	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-100M	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-100H	129	68	108	26	16	92	168	50	62	74	17.5	56	60	6.5	M8	30	129	4.5
SM1-225L	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-225M	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-225H	126	66	110	20	20	94	183	50	69.5	84.5	17.5	54	70	6.5	M8	35	126	5
SM1-400L	194	60	120	33	33	169	279	60	83.5	106.5	21	129	60	8.5	M10	44	194	7
SM1-400M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630L	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630M	200	65	125	36	36	169	299	60	92	110	21	123	100	8.5	M12	58	200	7
SM1-630H		128														70	243	7.2
SM1-800M		128													70	243	7.2
SM1-800H		128														70	243	7.2
SM1-1250M
SM1-1250H
SM1-1600M