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1.Application

SM1L series earth leakage circuit breaker are one of the new type earth leakage breakers which have been developed by the company using international advanced design and manufacturing technology. Suitable for a line of AC50Hz/60Hz, rated voltage up to 400V, rated current 16A to 630A. and is acted as infrequent changeover of circuit or infrequent starting of motor. The breaker has overload, short-circuit and under-voltage protective function, which can protect the circuit and the power equipment against damage, meanwhile, it can provide protection to these fire dangers that caused by these long-time existed grounding fault that can not be detected by the over-current protection.
This breaker can be installed vertically(upright) or horizontally(transverse).
Wiring of the breaker can not be in adverse direction, that means power supply line must be connected to terminal 1,3 and 5,and the load line connected to terminal 2,4 and 6.
The rated residual operating current I△n and the maximum breaking time can be adjusted on site according to practical condition.
The leakage protection module still can work normally when the phase voltage reduce to 50V. It has the same overall size with the AM1 series breakers, which make the installation more exchangeable.
The breakers are suitable for isolation, its symbol are:
The breakers comply with the demands of the following standards:
IEC60947-1 and GB/T 14048.1 General
IEC60947-2 and GB 14048.2 Low voltage breakers
IEC60947-4 and GB 14048.4 Contactors and motor starters
IEC60947-5.1 and GB 14048.5 Electrical equipments of electromechanical control circuit

2. Main Technical Specifications

Type		SM1L-100			SM1L-225				SM1L-400		SM1L-630
Frame Current Inm(A)		100			225				400		630
Rated current In(A)		(10)16,20,25,32,40,50,63,80,100			100,125,160,180,200,225				225,250,315,350,400		400,500,630
Pole Number		3		4	3			4	3	4	3	4
Rated Insulation Voltage Ui(V)					AC800
Rated Working voltage Ue(V)					AC 400V
Rated impulse with stand voltage Uimp(V)					8000
Arc-over Distance(mm)					>50
Breaking capacity grade		M	H		M	H			M		M
Limiting short-circuit breaking capacity lcu (kA)	AC400V	50	85	50	50	85	50		65		65
Service short-circuit breaking capacity lcs(kA)	AC400V	35	50	35	35	50	35		42		42
Rated residual operating current I △ n(mA)	Non-delay type				100/300/500
	Delay type				100/300/500						300/500/1000
Rated residual nonoperatingcurrent I △no(mA)					1/2 I △ n
Operation performance (time)	Electrified	1500			1000				1000		1000
	Unelectrified	8500			7000				4000		4000

Note: According to the pole number of product, it calssifies three and four poles. The neutral pole (N-Pole) of the four-poles products has four types:
Type A: N-pole without over-current release unit, it has been connected all the time, not closing and opening with the other three poles.
Type B: N-pole without over-current release unit, which closing and opening with the other three poles.
Type C: N-pole fixed with over-current release unit, which closing and opening with the other three poles.
Type D: N-pole fixed with over-current release unit, it has been connected all the time, not closing and opening with the other three poles.
1. The limiting breaking and arc-over distance includes horizontal and vertical installation.
2. If the three-pole breaker of this series is connected with three phase load, the load can not have neutral line, otherwise the breaker will have fault action.
3. If the three-pole breaker of this series is connected with single phase load, the phase line willbe connected to the left pole, and the neutral line is connected to the right pole, the middle pole is blanket


3. Protection Characteristic

The thermal release of the breaker has again-time-limit property; the electromagnetic release is inst. Operation, its property see table 2(for distribution),table 3 (motor protection).

Rated current of Release(A)	Thermal release (ambient temperature+40oC)		Electromagnetic release operating current(A)
	1.05In(cold state ) non-operating time (h)	1.03In(hot state) acting time (h)
10 ≤ In ≤ 63	1	1	10In±20%
63 ≤ In ≤ 125	2	2
125 ≤ In ≤ 630	2	2	5In±20% 10In±20%

Rated current of Release	Thermal release (ambient temperature +40oC)				Electromagnetic Release operating current(A)
	1.0In (cold state) non-operating time(h)	1.20In(hot state) acting time(h)	1.50In(thermal state) operating time	7.2In(cold state) operating time
10≤In≤400	2	2	8min	6s < TP ≤ 20S	12In±20%

4. Residual current operating time of earth leakage circuit breaker

4.1 Non-delay type operation characteristics see table 4(I△n≤30mA should be Non- delay type)

Rated current		I△n	2I△n	5I△na	10I△n
Non-delay type	Max.breaking time(s)	0.3	0.15	0.04	0.04

Note: ato I△n≤30mA earth leakage circuit breaker, 0.25A can instead of 5I△n According toa, adopt 0.25A, then 10 I△n is 0.5A.

4.2 Delay type operation characteristics see table 5

Limiting non-driven time of delay type earth leakage circuit breaker according to 2l△n,operation characteristics see table 5

Delay time (s)	Max. breaking time(s) at I△n	Limiting non-driven time (s) at 2 I△n	Max. breaking time(s)	Max. breaking time(s) at 5I△n	Max. breaking time(s) at 10 I△n
0.1	0.4	0.06	0.2	0.15	0.15
0.2	0.5	0.06	0.2	0.15	0.15
0.3	0.6	0.1	0.4	0.3	-
0.4	0.7	0.2	0.5	0.4	-
0.5	0.8	0.3	0.6	0.5	-
0.6	0.9	0.4	0.7	0.6	-
0.7	1.0	0.5	0.8	0.7	-

5 .Accessories of circuit breaker

5.1 The external accessories of the breaker

Motor-driven operation device

1) Wiring diagram of type CDM electromagnetic operation device(fitting SM1L-100,225) see thefollowing drawing (wiring diagram of the external accessories of the breaker in the dotted frame)


2) Wiring diagram of type CD motor-driven operation device (fitting SM1L-400I630) see belows(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



Code description: SB1 SB2 stand for push button. (provided by users themselves) "X" stands for line connection terminalsVoltage rating: AC50Hz 230V 400V; DC220V


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.

5.2 The internal accessories of the breaker
5.2.1 Release pattern and accessories code see following table

Release patternand accessories code	Name\Type	SM1L- 100,225	SM1L-400	SM1L-630
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
228, 328	Auxiliary contact,Alarm contact

5.2.2 The technical parameter and functions of the accessories

Accessory	Rated operating voltage (V)
	AC50Hz		DC
Shunt Release Us	220(230)	380(400)	110	220
Under-voltage Release Us	220(230)	380(400)

Auxiliary contact and Alarm contact: Auxiliary contact is as some as Alarm contact , the techni-cal parameter see following table

Rated heating current Ith (A)	Rated operating current Ie(A)		Suited Frame Inm(A)
	AC380V	DC220V
3	0.3	0.15	100, 225
3	0.4	0.15	400, 630

Accessories name	Function	Wiring connection diagram
Alarm contact	Indicate circuit breaker at tripping
Auxiliary contact	Indicate circuit breaker at opening or closing
Shunt release	The shunt release should make the breaker trip reliably when theoperatiopn voltage is 70%-110% of rated control voltage
Under-voltage	When Ue is 35%-70% of the rated control voltage, the under voltagerelease should make the breaker trip correctlyWhen Ue is 85%-110% of the rated control voltage, the under voltagerelease should make the breaker closeIn case of Ue less than 35%of the rated control voltage should preventthe breaker from closing

Type	Outline dimensions																			Installation dimensions
	Back panel connection								Back panel connection			Plug-in
	W	L	H	W1	L1	L2	H1	H2	L3	H3	D	L4	L5	H4	H5	H6	C	D	D1	A	B	d
SM1L-100M,H/3P	92	150	92	60	200	200	132	110	28.5	90	93	168	92	50	64	76	60	56	6.5	30	129	4.5
SM1L-100M,H/4P	122	150	92	90	200	200	132	104	28.5	90	93	168	92	50	64	76	60	56	6.5	30	129	4.5
SM1L-225M,H/3P	107	165	90	70	265	265	144	110	24	93	100	183	94	50	71.5	86.5	90	54	6.5	35	126	5.5
SM1L-225M,H/4P	142	165	103	105	265	265	144	127	24	93	100	183	94	50	710.5	86.5	70	54	6.5	35	126	5.5
SM1L-400M,H/3P	150	257	106.5	96	441	441	224	146.5	38	164	108.5	279	-	60	83.5	106.5	105	129	8.5	44	194	7
SM1L-400M,H/4P	198	257	106.5	144	441	441	224	146.5	38	164	108.5	279	-	60	83.5	106.5	70	129	8.5	44	194	7
SM1L-630M,H/3P	210	280	115.5	145	480	480	243	155	45.3	158	84	296	-	61	97	148	140	143	10	70	243	7
SM1L-630M,H/4P	280	280	115.5	210	480	480	243	155	45.5	158	84	296	-	61	97	148	210	143	10	70	243	7