NO:2021.04 Standard:IEC/EN 60947-2 NXM Series Moulded-Case Circuit-Breaker User Instructions
Safety Warning 1 2 3 4 Installation in any damp, condensed-phase environment with inflammable and explosive gas is forbidden.Do not operate the product with wet hands. You are prohibited from touching the conductive part when the product is operating. When the product is being installed or maintained, the power must be switched off. The 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 the product must be carried out in strict accordance with the requirements of the user instructions. 5 EMA EUR
1 2 01 a) Ambient temperature for normal use: - 5 ℃ ~ + 40 ℃; Note: if it is used within the range of - 35 ℃ ~ + 70 ℃, please consult with the manufacturer b) If the altitude exceeds 2000m, please consult with the manufacturer; c) See the product sample for the inverse time lag, temperature compensation curve and altitude derating curve of the product; d) Pollution degree: degree 3; e) Main circuit installation category: III; f) Degrees of protection provided by enclosure: IP30 (except wiring terminals); g) Rated insulation voltage Ui: 800V (NXM-63/160/125/250); 1000V (NXM-400/630/800/1000/1250/1600). Use Information Inspection and Test Figure 1 Inspection Tool Cross screwdriver 1. Determine product technical parameters; 2. Only qualified and professional technicians are allowed for installation, operation and maintenance. Type Screw Nut Flat gasket Spring washer PCS 2P 3P 4P NXM-63 NXM-125 S H M4×62 M4×72 M4×45 M4×45 M4×90 M5×75 M5×75 M6×90 M5×140 2 - 2 2 - - - - - 4 4 4 4 4 4 4 4 4 4 4 4 4 4 NXM-160 NXM-250 NXM-400、NXM-630 NXM-800 NXM-1000 NXM-1250、NXM-1600 S H
02 Smin Xmin 25min Xmin Ensure minimum installation distance Figure 2 Minimum installation distance Unit: mm Type NXM-63 NXM-125 NXM-160 NXM-250 NXM-400 NXM-630 NXM-800 NXM-1000 NXM-1250 NXM-1600 S X 50 25 100 50 ① Retriping ② Making ③ Breaking ④ Making ⑤ Tripping CLICK！ Figure 3 Test 3 Overall and Installation dimension Under voltage release L L B C 1 E E J 1 M W3 W F 2×φd L L B C 1 E E J 1 M W4 W1 F 4×φd A 2P 3P Under voltage release Figure 4-1 NXM-63~250 front-panel wiring overall and installation dimension
03 Table 1 NXM-63~250 overall and installation dimension Figure 4-2 NXM-63~250 front-panel wiring overall and installation dimension W3 L L B C 1 E E J 1 M W5 W2 F 6×φd A1 Sectional view of wiring G G1 H4 H3 H2 H1 Hmax 4P Under voltage release Unit: mm Overall dimension Dimension Code Specification NXM-63S NXM-125S NXM-63H NXM-125H NXM-160S NXM-160H NXM-250S NXM-250H C E E1 F G G1 J Hmax H1 H2 H3 H4 L L1 M W W1 86 55.5 27.5 23 17.5 8 17.5 88 51.7 24.5 29 16.5 7.5 25 102 56 30.5 29 23 10 25 90 71 64 21 21 100 81 74 31 31 96 75.5 62 112 91 77.5 98 77 62 23 123 102 87 24 135 121 49 56 78 24.5 24.5 155 135 50 63 90 24.5 165 145 101.5 78 105
04 Installation dimension W2 W3 W4 W5 A A1 B φd 103 25 50 75 25 50 117 4.2 120 30 60 90 30 60 130.5 4.5×6 140 35 70 105 35 70 126 4.5 Figure 5 NXM-400~1600 front-panel wiring overall and installation dimension L L B C 1 E E J 1 M W4 W1 F 4×φd A 3P W3 L L B C 1 E E J 1 M W5 W2 F 6×φd A1 G G1 4P H4 H3 H2 H1 Hmax Sectional view of wiring Under voltage release Under voltage release Table 2 NXM-400~1600 overall and installation dimension Unit: mm Overall dimension Dimension Code Specification NXM-400 NXM-630 NXM-800 NXM-1000 NXM-1250 NXM-1600 C E E1 F G G1 J 150 92 46 50 32.5 11.5 25 160 91 45 50 44.5 15 25 170 100 52 60 44.5 15 25 175 120 37.8 78 53 15 25 Dimension Code Specification NXM-63S NXM-125S NXM-63H NXM-125H NXM-160S NXM-160H NXM-250S NXM-250H Table 1 (Continued)
05 W P3 P2 P4 P1 W φd1 W W M2 P2 P3 W W Hmax H1 H2 H3 H4 L L1 M W1 W2 W3 W4 W5 A A1 B φd 161 108.5 97.5 40.5 41.5 257 225 104 140 185 44 88 132 44 88 194 7 165 114 103.5 43 45 270 235 104 182 240 58 116 174 58 116 200 7 168 118 106 42 43 280 243 106 210 280 70 140 210 70 140 243 7.2 202 153 143 57 57 207 158 148 65 65 370 342 92.5 210 280 70 140 210 70 140 314 6 Installation dimension Figure 6 NXM-63~250 rear wiring overall and installation dimension Figure 7 NXM-400~800 rear wiring overall and installation dimension Dimension Code Specification NXM-400 NXM-630 NXM-800 NXM-1000 NXM-1250 NXM-1600 Table 2 (Continued)
06 P6 P5 P6 P7 P5 P8 W P2 P1 W φd1 W P10 L8 L4 L4 L7 L5 L5 L2 L6 L6 K K Q P9 4×φd2 6×φd2 Installation diagram Mounting plate hole dimension (3P) Mounting plate hole dimension(4P) M1 W 6×φD 4×φd3 W 3P B L2 8×φD 6×φd3 W W W A A 4P B L2 N A P6 P8 Figure 8 NXM-1000 rear wiring overall and installation dimension Figure 9 NXM series rear wiring mounting plate hole dimension Figure 10 NXM series plug-in wiring overall and installation dimension Figure 11 NXM-63/125/400/ 630/800/1000 plug-in structure Figure 12 NXM-160 plug-in structure Figure 13 NXM-250 plug-in structure
07 Table 3 NXM series back-panel wiring overall and installation dimension Unit: mm Dimension Overall dimension Installation dimension Code Specification NXM-63 NXM-125 NXM-160 NXM-250 NXM-400 NXM-630 NXM-800 NXM-1000 W P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 M2 φd1 M1 φd2 φD L2 B L4 L5 L6 L7 L8 K Q A Φd3 25 —— 67.5 100.5 —— 44.5 50.5 —— —— 8.5 29.5 M8 —— M6 5.5 11.8 121 117 92 144 3P:80 4P:106 75 159 3P:50 4P:75 60 25 4.5 30 —— 63.5 96.5 —— —— 75 —— 135 13 38 M8 —— M10 8 11 135 130.5 106 167 3P:94 4P:124 —— —— 3P:60 4P:90 72 30 4.5 35 —— 67.5 108.5 —— 77 95 132 150 13 47.5 M10 —— M10 6 12 147 126 108 184 3P:107 4P:142 —— —— 3P:70 4P:105 76 35 4.5 44 40 58 75 93 88 111 —— —— 25 60 —— φ12 M10 9 33 225 194 168 283 3P:142 4P:187 169 281 3P:88 4P:132 145 44 7 58 46 66 77 99 92 110 —— —— 23 60 —— φ16 M12 9 40 235 200 168 302 3P:178 4P:236 170 300 3P:100 4P:166 124 58 7 70 64 84 —— —— 143.5 158.5 —— —— 27 87 —— φ16 M12 12 40 243 243 177 309 3P:214 4P:284 181 305 3P:90 4P:185 146 70 7
08 Installation M8×16 10N·m 12 4 .5 14.5 25.5 M8-6H 40.5 7.5 φ8.2 Cross sectional area : s s(b×c)≥70 c≤5 11≤X≤13 φ8.5 a≤7.5 b≤16 a≤7.5 φ8.5 b≤16 M6×12 4N·m φ6.5 φ8.2 7 Cross sectional area : s NXM-63：s(b×c)≥16 NXM-125：s(b×c)≥50 c≤4 11≤X≤13 φ6.5 a≤8 b≤17.5 a≤7 φ6.5 b≤17.5 Connect to breaker 25.5 40 4 17 4 12.5 M8×16 12N·m Connect to breaker φ10.5 23.5 φ8.5 6 6 21 62 40 10 Cross sectional area : s NXM-250: s(b×c)≥120 c≤8 11≤X≤13 φ8.5 a≤10 b≤23.5 a≤10 φ8.5 b≤23.5 4 Installation and Wiring Figure 14 NXM-63/NXM-125 connecting plate and wiring dimension Figure 16 NXM-250 connecting plate and wiring dimension Figure 15 NXM-160 connecting plate and wiring dimension Figure 17 NXM-400 connecting plate and wiring dimension Connect to breaker Installation Installation Connect to breaker 30.5 30.5 16 70 43 70 43 11.5 11.5 φ10.5 φ10.5 φ14 8 φ14 Cross sectional area : s s(b×c)≥240 c≤13.5 19≤X≤21 φ10.5 a≤11.5 b≤30.5 a≤11.5 φ10.5 M10× b≤30.5 30 30N·m Installation
09 30.5 30.5 16 43 43 70 70 11.5 11.5 φ10.5 φ10.5 φ14 8 φ14 c≤13.5 19≤X≤21 φ10.5 a≤11.5 b≤30.5 a≤11.5 φ10.5 b≤30.5 Cross sectional area : s wire 1 wire 2 wires Copper-bar s(b×c)≥370 s(b×c)≥400 s(b×c)≥185 s(b×c)≥200 M10×30 30N·m Installation Figure 18 NXM-630 connecting plate and wiring dimension Figure 20 NXM-1000 connecting plate and wiring dimension Figure 19 NXM-800 connecting plate and wiring dimension Figure 21 NXM-1250/ NXM-1600 connecting plate and wiring dimension Connect to breaker 43 50 90 58 8.5 15 φ17 φ14 10 43 50 90 58 15 φ17 φ14 c≤20 19≤X≤21 φ14 a≤15 b≤43 Cross sectional area : s 1 wire 2 wires s(b×c)≥600 s(b×c)≥300 M12×35 40N·m Installation Connect to breaker 24 24 45 38 15 30 52 82 52 82 25 25 77 5×φ11 h 1530 5×φ11 15 77 50 52 15 30 24 22 45 82 15 74 Unit: mm Rated current 1600A 1250A/1000A h 20 15 50 15 30 M10×45(1000、1250) M10×55(1600) 30N·m Installation Connect to breaker Cross sectional area : s s(b×c)≥480 s(b×c)≥500 s(b×c)≥240 s(b×c)≥250 43 14 10 90 58 15 φ14 φ14 φ17 90 58 15 43 c≤12 19≤X≤21 φ14 a≤15 b≤43 a≤15 φ14 b≤43 M12×35 40N·m Installation Connect to breaker wire 1 wire 2 wires Copper-bar
10 Electric operating mechanismRated control supply voltage K A Electric operating mechanismRated control supply voltage ON ON TRIPPED TRIPPED OFF OFF PUSH TO TRIP OFF PUSH TO TRIP OFF RESET RESET K A T B B2 B1 S4 S2 S1 P2 P1 Uc (+) OFF ON (-) Motor driven mechanism 5 Attachment Information Figure22 -Motor driven mechanism overall and installation dimension Figure 23 -Wring of motor diven mechanism (AC) Table 4 NXM series motor riven mechanism overall and installation dimension Unit: mm Dimension Overall dimension Code NXM-63 NXM-125 NXM-160 NXM-250 NXM-400 NXM-630 NXM-800 NXM-1000 NXM-1250 NXM-1600 Specification K B1 B2 T A B 74 102 51 92 25 117 90 116 53 97 30 130.5 90 116 60.5 97.5 35 142 130 176 88 154 44 194 130 176 88 153 58 200 130 176 88 154.5 70 243 130 176 88 156 70 314 Installation dimension
11 ( L Other sizes can be selected through consultation with the manufacturer) Breaker 150Min N 18 30.5 L Power supply Loop of switching on Loop of switching off F14 F12 L1 L3 N F11 QF Breaker L5 Tripper Ctrl Schematic diagram of handle installation 45° 53 φ36 10 77 NXM-63/125/160/250/ 400/630/800/1000 NXM-1250/1600 2×φ5.5 Figure 24 Manual operation mechanism installation dimension Table 5 NXM Series manual operation mechanism installation dimension Unit: mm Size code NXM-63 NXM-125 NXM-160 NXM-250 NXM-400 NXM-630 NXM-800 NXM-1000 NXM-1250 NXM-1600 Specification N L 53.5 61.5 63.5 98 97 97 68.5 65 95 Figure 25 Wiring of special tripper for prepaid electricity meter Figure 26 Wiring of auxiliary contact
12 UC2 UC1 P1 P2 C1 C2 Power supply B14 B12 B11 QF Power supply UC Figure 30 Flash barrier or protective guard ① Flash barrier shall be installed before operation. ② Check if the wiring is correct. ③ After installation, the insulation resistance to the ground shall not be less than 10MΩ. Insert in the direction of the arrow on the flash barrier Figure 27 Wiring of alarm contact Figure 29 Wiring of shunt tripper Figure 28 Wiring of under voltage tripper 6 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 sent to the recycling station for assortment, dismantling and recycling.
QC PASS Test date: Please see The packing ZHEJIANG CHINT ELECTRICS CO., LTD. NXM Series Moulded-Case Circuit-Breaker IEC/EN 60947-2 Check 17 13
NXM Series Moulded-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: [email protected] Website: http://en.chint.com