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03

NXMS series Moulded-Case Circuit-Breaker

Size 

type

Size 

code

Product type

NXMS-160

NXMS-250

NXMS-400
NXMS-630

NXMS-1000

NXMS-1250

NXMS-1600

C

E

E1

F

G

G1

J

Hmax

H1

H2

H3

H4

L

L1

M

W1

W2

W3

W4

W5

A

A1

B

φd

O

u

tli

n

e s
iz

e

In

st

a

lla

tio

n s
iz

e

90

45.5

24.5

29

16.5

7.5

25

112

91

77.5

24.5

24.5

155

135

50

90

120

30

60

90

30

60

130.5

4.5×6

102

51.5

30.5

29

23

11

25

123

102

87

24.5

24.5

165

145

101.5

105

140

35

70

105

35

70

126

4.5

150

84.7

46

50

30.5

12.5

25

161

108.5

97.5

41.5

41.5

257

225

104

140

185

44

88

132

44

88

194

7

170

100

52

60

44.5

15

25

168

118

106

43

43

280

243

106

210

280

70

140

210

70

140

243

7.2

175

120

37.8

78

53

15

25

202

153

143

57

57

207

158

148

65

65

370

342

92.5

210

280

70

140

210

70

140

314

6

Table 1 - NXMS Series Outline and Installation Size  

Unit: mm

Summary of Contents for NXMS Series

Page 1: ...NO 2021 04 Standards IEC EN 60947 2 User Instructions NXMS series Moulded Case Circuit Breaker ...

Page 2: ...must be switched off This product must not be installed in the place where gas medium can corrode metal and damage insulation In order to avoid dangerous accidents the installation and fixation of products must be carried out in strict accordance with the requirements of the instructions This product has been designed for environment A Use of this product in environment B may cause unwanted electr...

Page 3: ...ation category Ⅲ f Degrees of protection provided by enclosure IP30 except wiring terminals g Rated insulation voltage Ui 800V NXMS 160 250 1000V NXMS 400 630 1000 1250 1600 01 NXMS series Moulded Case Circuit Breaker 2 Inspection and Test Figure 1 Inspection 1 Determine product technical parameters 2 Only qualified and professional technicians are allowed for installation operation and maintenanc...

Page 4: ... NXMS 250 NXMS 400 NXMS 630 NXMS 1000 NXMS 1250 NXMS 1600 Figure 3 Test Re tripping Making Breaking Making Tripping 按 压 3 Outline and installation size 4 Under voltage tripper A φd W4 L L1 B C E E1 M J W1 F W5 A1 W3 M 6 φd F W2 G G1 sectional view of wiring H4 H3 H2 H1 Hmax L L1 B C E E1 J 3P 4P Figure 4 NXMS series front panel wiring outline and installation size Under voltage tripper ...

Page 5: ... 5 155 135 50 90 120 30 60 90 30 60 130 5 4 5 6 102 51 5 30 5 29 23 11 25 123 102 87 24 5 24 5 165 145 101 5 105 140 35 70 105 35 70 126 4 5 150 84 7 46 50 30 5 12 5 25 161 108 5 97 5 41 5 41 5 257 225 104 140 185 44 88 132 44 88 194 7 170 100 52 60 44 5 15 25 168 118 106 43 43 280 243 106 210 280 70 140 210 70 140 243 7 2 175 120 37 8 78 53 15 25 202 153 143 57 57 207 158 148 65 65 370 342 92 5 2...

Page 6: ... B L2 8 φD 6 φd3 W W N A φ d1 W W W P1 P2 Figure 4 NXMS 160 250 back panel wiring outline and installation size Figure 5 NXMS 400 630 back panel wiring outline and installation size Figure 6 NXMS 1000 back panel wiring outline and installation size Figure 7 NXMS series back panel wiring mounting plate hole size ...

Page 7: ... 9 NXMS 160 plug in structure Figure 10 NXMS 250 plug in structure Figure 11 NXMS series plug in wiring outline and installation size Table 2 NXMS series back panel wiring outline and installation size Unit mm Size type Size code Product type NXMS 160 NXMS 250 NXMS 400 NXMS 630 NXMS 1000 Outline size W P1 P2 P3 P4 P5 P6 P7 P8 P9 M2 30 63 5 96 5 38 75 135 M8 35 67 5 108 5 47 5 77 95 132 150 M10 44 ...

Page 8: ...4 5 M10 6 12 126 147 108 184 3P 107 4P 142 3P 70 4P 105 76 35 4 5 9 33 194 225 168 283 3P 142 4P 187 169 281 3P 88 4P 132 145 44 φ16 M12 12 40 243 243 177 309 3P 214 4P 284 181 305 3P 90 4P 185 146 70 7 4 Installation and Wiring Installation connect to breaker 25 5 4 12 5 14 5 φ8 2 7 5 40 5 M8 6H M8 16 10N m c 5 Cross sectional area s s b c 70 11 13 a 7 5 a 7 5 b 16 b 16 φ8 5 φ8 5 Figure12 NXMS 16...

Page 9: ...14 φ10 5 16 43 11 5 8 φ14 70 43 11 5 φ10 5 30 5 s b c 370 s b c 185 Wire Copper bar 1wire 2wires b c 400 s s b c 200 c 13 5 Cross sectional area s 19 21 a 11 5 b 30 5 φ10 5 a 11 5 b 30 5 φ10 5 M12 35 30N m connect to breaker 43 90 φ14 58 15 φ17 8 5 50 10 43 90 φ14 58 15 φ17 50 Cross sectional area s 2 wires s b c 300 c 20 19 21 a 15 b 43 φ14 Installation Installation Installation Installation Figu...

Page 10: ...7 45 24 15 22 82 15 30 50 74 Unit mm Rated current 1600A 1250A 1000A h 20 15 Installation Installation Installation Installation Figure 17 NXMS 1250 1600 connecting plate and wire size Figure 18 NXMS 160 250 connecting plate installation diagram Figure 19 NXMS 400 630 1000 connecting plate installation diagram Figure 20 NXMS 1250 1600 connecting plate installation diagram ...

Page 11: ... 630 500 550 600 630 660 700 750 800 630 680 720 780 820 900 950 1000 630 700 800 900 1000 1100 1200 1250 800 900 1000 1100 1250 1400 1500 1600 32 63 100 125 160 200 250 300 315 320 400 500 630 800 1000 1250 1600 Electronic release Portable test unit PTU interface interface type Micro USB Neutral protection setting current multiple 4P 0 5 1 0 In OFF OFF 3 gears Default OFF Isd xIr Ii xIn PTU OFF O...

Page 12: ...s example tr is set to 100 seconds Total rotational angle 235 10 Start End tr S 12 60 80 100 Short circuit short delay tripping time tsd 0 3s by default Note can be customized select one gear among 0 2s 0 3s 0 4s 0 5s 0 6s 0 7s 0 8s 0 9s Rated instantaneous short time current setting li 2 3 4 6 8 10 12 In OFF 8 gear 2 4 6 8 10 12 In OFF 8 gear 14 Default 12 14 For distribution For motor Pre warnin...

Page 13: ...ation parameters Protocol Modbus RTU Address 1 Baudrate 9600bps Data bit 8 Parity bit Even Stop bit 1 Product type Installation size N Handle size L 61 5 63 5 65 95 98 97 68 5 NXMS 160 NXMS 250 NXMS 400 NXMS 630 NXMS 1250 NXMS 1600 NXMS 1000 10 77 45 5 3 φ36 2x φ 5 5 L Other sizes can be selected through consultation with the manufacturer Schematic diagram of handle installation NXMS 160 250 400 6...

Page 14: ...ly voltage ON TRIPPED OFF PUSH TO TRIP OFF RESET ZHEJIANG CHINT ELECTRICS CO LTD B B1 B2 T Figure 24 Electric operating mechanism outline and installation size Table 4 NXMS series electric operating mechanism outline and installation size Unit mm Size type Size code Product type NXMS 160 NXMS 250 NXMS 400 NXMS 630 NXMS 1250 NXMS 1600 NXMS 1000 Outline size Installation size K B1 B2 T A B 90 116 53...

Page 15: ...proper use storage and maintenance 2 Damage caused by the organization or personnel not designated by the company or by disassembly and maintenance without authorization 3 The warranty expires 4 Damage caused by force majeure 8 Environmental Protection In order to protect the environment the product or product parts should be disposed of according to the industrial waste treatment process or be se...

Page 16: ...d Case Circuit Breaker User Instructions Zhejiang Chint Electrics Co Ltd Add No 1 CHINT Road CHINT Industrial Zone North Baixiang Yueqing Zhejiang 325603 P R China E mail global sales chint com Website http en chint com ...

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