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High Quality Moulded Case Earth Leakage Circuit Breaker

China High Quality Moulded Case Earth Leakage Circuit Breaker, Find details about China Earth Leakage Circuit Breaker, MCCB from High Quality Moulded Case Earth Leakage Circuit Breaker

Model NO.
MM1L
Poles Number
3,4
Type
RCCB
Function
Conventional Circuit Breaker, RCCB
Certification
ISO9001-2000, CE, CB, CCC
Model
mm1l
Number of Poles
3p, 4p
Current Value
100A~1600A
Trademark
Long Road/OEM
Transport Package
Carton
Specification
IEC60947-2
Origin
China
Model NO.
MM1L
Poles Number
3,4
Type
RCCB
Function
Conventional Circuit Breaker, RCCB
Certification
ISO9001-2000, CE, CB, CCC
Model
mm1l
Number of Poles
3p, 4p
Current Value
100A~1600A
Trademark
Long Road/OEM
Transport Package
Carton
Specification
IEC60947-2
Origin
China
1.Application 
MM1L 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

MM1L-100

MM1L-225

MM1L-400

MM1L-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 AM1L-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 AM1L-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

MM1L- 100,225

MM1L-400

MM1L-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

MM1L-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

MM1L-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

MM1L-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

MM1L-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

MM1L-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

MM1L-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

MM1L-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

MM1L-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

High Quality Moulded Case Earth Leakage Circuit BreakerHigh Quality Moulded Case Earth Leakage Circuit BreakerHigh Quality Moulded Case Earth Leakage Circuit BreakerHigh Quality Moulded Case Earth Leakage Circuit BreakerHigh Quality Moulded Case Earth Leakage Circuit Breaker

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