KXM2 series moulded case circuit breaker MCCB MCB structure explanation

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Basic Info.
  • Type: Mini 
  • Poles Number:
  • Brand Name: CHKX 
  • Frequence: AC50Hz/60Hz or lower 
  • Rated working voltage: 230V/400V or lower 
  • Application: modern construction 
  • Breaking capacity: 100kA 
  • Criteria: GB10963.1-2005 
  • Pole: 1,2,3 
  • Rated breaking capacity:: 10000 
  • Rated Isolating voltage: 690V 
  • Accessories: SD,OFF,MX,MX+OFF,MV,MN,MV+MN. 
  • Rated current: 63A,100A,225A,400A,630A,800A 
  • Model No.: KXM2-63/1250 
  • Place of Origin: Zhejiang  
  • Min.Order: 100 Piece/Pieces
  • Means of Transport: Ocean, Air, Land
Supply Capacity
  • Production Capacity: 100000PCS/PER MONTH
  • Packing:Neutral or customized
  • Delivery Date: 30 days or customized

KXM2 series moulded case circuit breaker

Application:

KXM2 series moulded case circuit breaker(hereinafter referred to as circuit breaker),adopt advanced international design and technical manufacture to research and develop this new type circuit breaker, it has overload, short circuit, undervoltage protection devices, can avoid circuit and power supply devices damage by overload, short circuit, undervoltage etc situation.

It can be classified into L type(Standard type), M type(higher breaking capacity type),H type(Highest breaking capacity type) by its rated limitation short circuit breaking capacity(Icu).

1.Rated isolation voltage: AC 50Hz 690V

2.Moulded case rated current:63A,100A,225A,400A,630A,800A

3.High Breaking capacity: Maximum can reach 100kA

4.Rational design, safe and reliable, small volume, light weight, elegant appearance, short flashover(some specification no flashover), anti-vibration, it's ideal product for land use and vessel use

5.Complete Accessories, rapid installation, convenient usage, strong applicability

6.Can be installed vertically or horizontally.

Model No. and meaning:

 KXM2 moulded case circuit breaker series MCCB MCB

Note:

1).No code for circuit breaker of distribution; circuit breaker of electromotor protection be expressed by code 2

2) No code for direct operation; electric operated be expressed by code P; turning handle operation be expressed by code Z

Classification:

1.By pole: 2P(100A,225A),3P and 4P(KXM2-800 no 4P). Neutral pole in 4P have 4 types:

A type: N pole don't install over current tripping mechanism, and N pole connected all the times, not connect/disconnect with other three poles

B type: N pole don't install over current tripping mechanism, and N pole connect with other three poles(N pole connect firstly and disconnect later )

C type: N pole install over current trip mechanism, and N pole connect with other three poles(N pole connect firstly and disconnect later )

D type: N pole install over current trip mechanism, and N pole connected all the times, not connect/disconnect with other three poles

2.By rated current(A):

KXM2-63 have 6A,10A,16A,20A,25A,32A,40A,50A,63A nine grades(6A without overload protection)

KXM2-100 have 10A,16A,20A,25A,32A,40A,50A,63A,80A ,100A ten grades(10A without overload protection)

KXM2-225 have 100A,125A,140A,160A,180A,200A,225A seven grades

KXM2-400 have 225A,250A,315A,350A400A five grades

KXM2-630 have 400A,500A,630A three grades

KXM2-800 have 630A,700A,800A three grades

3.By wire connecting: front panel connection, back panel connection, plug-in type

4.By current tripping mechanism type: electromagnetism (double) type, electromagnetism (instantaneous) type.

Normal working and installation criteria:

1.         Altitude lower than 2000m

2.         Surrounding neurogen temperature should lower than +40℃(vessel product should lower than 45℃) and should higher than -5℃

3.         Pollution degree: III

4.         Humidity-resistant ability

5.         Anti-oil mist and anti-smoke ability

6.         Maximum gradient:±22.5°

7.         Can reliable work under vessel normal vibration condition

8.         Can reliable work under earthquake(4g)

9.         The place should without explosion dangerous media/neurogen, and the media should without corrosive goods to metal and damage goods to isolator and no conducting dust

10.      The place can't hit by snow or rain directly.

Trip mode and accessory code(see Table 1):

Table 1 Trip mode and accessory code:

 KXM2 series moulded case circuit breaker MCCB MCB structure explanation

Note:

1.200:Means only with electromagnetism circuit breaker nounmenon; 300: means with thermal dynamic electromagnetism circuit breaker nounmenon; 000: means without tripping mechanism circuit breaker nounmenon

2.KXM2-100,225 two poles only have 210,310,220,320,230,330; KXM2-100,225 four poles circuit breaker without 218,318,348;N pole A type and D type without 240,340,260,360,268,368

3. KXM2-400,KXM2-630 and KXM12-800's 248,348,278,378 auxiliary contact is a pair of contact(one normally open, one normally close),268,368 auxiliary contact have three pairs contact.


Order instruction:

For example:

1.If order KXM2-100M three poles, for electromotor protection. Rated current 80A and with shunt tripping mechanism(MX), auxiliary contact (OF), front panel wire connecting and 2 sets with mechanical interlocking device, can be written as:KXM2-100M/33402 In=80A, front panel wire connecting 2 sets with mechanical interlocking device, tripping device coil, voltage:AC230V

2.If order KXM2-225 4 poles, for distribution, rated current 180A with electric operation device and shunt tripping mechanism, N pole with over current tripping mechanism, and N pole connect with other three poles, back panel wire connecting 10 sets. Can be written as: KXM2-225P/4310C, In=180A, back panel wire connecting 10 sets, electric operation voltage: AC230, tripping mechanism coil voltage: AC230V

Protect characteristic:

Circuit breaker thermal dynamic type tripping mechanism have inverse-time characteristic; electro magnetism tripping mechanism is instantaneous action:

For distribution:

Tripping mechanism rated current

(A)

Thermal dynamic type tripping mechanism (surrounding temperature: land use +40℃/vessel use +45℃ )

Electromagnetism tripping mechanism action current(A)

1.05In(Cold) non action time(h)

1.30In(hot) action time(h)

10≤In≤63

1

1

10In±20%

63≤In≤100

2

2

100≤In≤800

2

2

5In±20%    10In±20%

Note:KXM2-225 100A,125A specification not have 5In electromagnetism tripping mechanism

For electromotor protection

Tripping mechanism rated current(A)

Thermal dynamic tripping mechanism(surrounding temperature: land use +40℃/vessel use +45℃ )

Electromagnetism tripping mechanism action current(A)

1.05In(Cold) non action time(h)

1.20In(hot) action time(h)

1.50In(hot) action time

7.2In(cold) action time

10≤In≤225

≥2

﹤2

﹤4 min

4s﹤Tp≤10s

12In±20%

225≤In≤630

﹤8 min

6s﹤Tp≤20s

 

Main technical parameter:

Model No.

Moulded case rated current(A)

Rated current(A)

Rated working voltage(V)

Rated isolating voltage(V )

Rated limiting short circuit breaking capacity (kA) 400V

Rated running short circuit breaking capacity (kA) 400V

KXM2-63L

63

(6),10,16,20, 25,32,40,50,63

AC400

AC690

25

18

KXM2-63M

50

35

KXM2-100L

100

(10),16,20,25,32, 40,50,63,80,100

AC400

AC690

35

22

KXM2-100M

50

35

KXM2-100H

85

50

KXM2-225L

225

100,125,140,160, 180,200,225

AC400

AC690

35

22

KXM2-225M

50

35

KXM2-225H

85

50

KXM2-400L

400

225,250,315, 350,400

AC400

AC690

50

35

KXM2-400M

65

42

KXM2-400H

100

65

KXM2-630L

630

400,500,630

AC400

AC690

50

35

KXM2-630M

65

42

KXM2-630H

100

65

KXM2-800M

800

630,700,800

AC400

AC690

75

50

KXM2-800H

100

65

Note: Mark () no overload protection, it's not recommended specification.

Connect guide wire cross-sectional area and suitable rated current:

Rated current(A)

10

16,20

25

32

40, 50

63

80

100

125

160

180,200, 225

250

315, 350

400

Guide line cross-sectional area

1.5

2.5

4

6

10

16

25

35

50

70

95

120

185

240

 

Rated current(A)

Cable

Copper bar

Cross-sectional area (mm2)

Quantity

Size(mm*mm)

Quantity

500

150

2

30*5

2

630

185

2

40*5

2

700,800

200

2

40*5

2

Derating factor

Temperature

Factor/coefficient

Model No.

+40℃

(Vessel use +45℃)

+45℃

(Vessel use +50℃)

+50℃

(Vessel use +55℃)

+55℃

(Vessel use +60℃)

+60℃

(Vessel use +65℃)

Derating factor

 

Derating factor

 

Derating factor

 

Derating factor

 

Derating factor

 

KXM2-63(L,M)

1In

0.94In

0.88In

0.80In

0.72In

KXM2-100(L,M,H)

1In

0.95In

0.89In

0.84In

0.76In

KXM2-225(L,M,H)

1In

0.96In

0.91In

0.87In

0.82In

KXM2-400(L,M,H)

1In

0.94In

0.87In

0.81In

0.73In

KXM2-630(L,M,H)

1In

0.93In

0.88In

0.83In

0.76In

KXM2-800(,M,H)

1In

0.88In

0.83In

0.79In

0.76In

Note: Above derating factor be tested under moulded case rated current

Overall and installation size:

KXM2-63,100,225 overall and installation size (front panel wire connecting)(see table 3)

Table 3, KXM2-63,100,225 overall and installation size (front panel wire connecting)



KXM2-63L

KXM2-63M

KXM2-100L

KXM2-100M

KXM2-100H

KXM2-225L

KXM2-225M

KXM2-225H

Overall size

C

85

85

84

84

102

102

E

48

48

50.5

50.5

50

50

F

22

22

22

22

22

22

G

14

14

17.5

17.5

23

23

G1

6.5

6.5

7.5

7.5

11.5

11.5

H

72

72

68

68

86

86

H1

90

90

86

86

110

110

H2

18

18

24

24

24

24

H3

4

4

4

4

4

4

H4

6

6

7

7

5

5

L

135

135

150

150

165

165

L1

235

235

255

255

360

360

L2

117

117

136

136

144

144

W

76

76

90

90

105

105

W1

25

25

30

30

35

35

W2

---

102.5

120

120

140

140

W3

---

---

---

65

---

75

Installation size

A

25

25

30

30

35

35

B

117

117

130.5

129

126

126

Φd

4.5

4.5

4.5

4.5

5

5

Overall and installation size:

KXM2-400,630,800,1250 overall and installation size (front panel wire connecting)(see table 4)

KXM2 moulded case circuit breaker series MCCB MCB

KXM2 moulded case circuit breaker series MCCB MCB

Table 4 , KXM2-400,630,800,1250 overall and installation size (front panel wire connecting)



KXM2-400L/3P

KXM2-400M/3P

KXM2-400H/3P

KXM2-400L/4P KXM2-400M/4P

KXM2-400H/4P

 

KXM2-630L/3P KXM2-630M/3P KXM2-630H/3P

 

 

 

KXM2-630L/4P KXM2-630M/4P KXM2-630H/4P

 

KXM2-800M/3P KXM2-800H/3P

 

KXM2-800M/4P 

KXM2-1250H/3P

Overall size

C

127.5

127.5

134

134.5

136

136

265.5

C1

173.5

173.5

184.5

184.5

204

204

345.5

E

88.5

88.5

89

89

81

81

97

F

65

65

65.5

65

66

66

78

G

30.5

30.5

44

44

45

45

--

G1

11

12

13.5

15.5

12.5

12

--

H

107

107

112

112

116

116

141

H1

162

162

164.5

164.5

168

168

202

H2

38

40

41.5

42

41.5

41.5

58

H3

6.5

6

7

6.5

4.5

4.5

16.5

H4

5.5

5

3.5

3.5

5

5

2

H5

5

5

4.5

4.5

8

8

4.5

L

257

257

270.5

270.5

280

280

406

L1

457

457

470

470

470

485

715

L2

224

224

234

234

243

243

--

W

150

--

182

--

210

--

210

W1

48

48

58

58

70

70

70

W2

--

197.5

--

240

--

280

--

Installation size

A

44

44

58

58

70

70

70

A1

--

50

--

--

--

--

--

B

194

194

200

200

234

234

375

Φd

7

7

7

7

7

7

10

Note: KXM2-1250H(with noumenon junction panel) total length is 545mm.

KXM2-63,100,225 overall and installation size(back panel wire connecting) (see table 5)

KXM2 moulded case circuit breaker series MCCB MCB

KXM2-400,630,800 overall and installation size(back panel wire connecting) (see table 5)

KXM2 moulded case circuit breaker series MCCB MCB

Back panel wire connecting bore hole drawing (see table 5):

KXM2 moulded case circuit breaker series MCCB MCB

Plug-in type overall and installation size(see table 5)

KXM2 moulded case circuit breaker series MCCB MCB



KXM2-63L KXM2-63M

KXM2-100L KXM2-100M KXM2-100H

KXM2-225L KXM2-225M KXM2-225H

KXM2-400L KXM2-400M KXM2-400H

KXM2-630L KXM2-630M KXM2-630H

KXM2-800M KXM2-800H


A

25

30

35

44

58

70


Φd

4.5

4.5*6 long hole

5.5

7

7

7


Φd1

---

---

---

12

16

16


Φd2

6

8

8

9

9

12


ΦD

8

10

12

33

37

37


ΦD1

8

10

12

33

37

37


H6

 

---

---

---

18

20

20


L:32/M:23

63.5

67.5

39

45

64


H7

L:47/M:38

96.7

118.5

74

79

64


H8

28

50

50

60

60

87


H9

38

67.5

71.5

88

92

143.7


H10

44.5

81

84.5

111

110

158.7


H11

10

18

18

21.5

21

27


H12

117

136

144

224

234

243


L2

117

130.5

126

194

200

243


L3

97

93

93

163

165

173


L4

138

180

190

3P:152

302

305


L5

3P:80

3P:95

3P:110

3P:152

3P:185

3P:215


L6

4P:105

4P:125

4P:145

4P:200

4P:243

4P:285


M

M6

M8

M10

---

---

---


K

50

60

70

60

100

90


K1

25

30

35

66

66

95


J

60

58

54

130.4

124

146


M1

M5

M8

M8

M10

M12

M12


W1

25

30

35

48

58

70


W2

12.5

15

17.5

24

29

35



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Ms. RUBY XIA
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JINAN STAR ELECTRIC EQUIPMENT CO., LTD
KAICHUANG ELECTRIC INDUSTRIAL AREA, QIANDANG ROAD 6#,QIANDANG VILLAGE, KUNYANG,PINGYANG, Wenzhou, Zhejiang, China (Mainland)
Fax: 86-531-88626268
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