CHINT NXMS Series User Instructions

CHINT NXMS Series User Instructions

Moulded-case circuit-breaker

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NO:2021.04
NXMS series
Moulded-Case Circuit-Breaker
User Instructions
Standards: IEC/EN 60947-2

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Summary of Contents for CHINT NXMS Series

  • Page 1 NO:2021.04 NXMS series Moulded-Case Circuit-Breaker User Instructions Standards: IEC/EN 60947-2...
  • Page 2: Safety Warning

    Safety Warning 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.
  • Page 3: Use Information

    NXMS series Moulded-Case Circuit-Breaker Use Information a)Ambient temperature for normal use: - 5 ℃ ~ + 40 ℃; Note: if it is used within the temperature range of - 25 ℃ ~ + 70 ℃, please consult with the manufacturer.
  • Page 4 Figure 2 Minimum installation distance ① Re-tripping ② Making ③ Breaking ④ Making ⑤ Tripping Figure 3 Test Outline and installation size sectional view of wiring 4× φd 6×φd Hmax Figure 4 NXMS series front-panel wiring outline and installation size...
  • Page 5 NXMS series Moulded-Case Circuit-Breaker Table 1 - NXMS Series Outline and Installation Size Unit: mm Product type Size Size NXMS-400 type code NXMS-160 NXMS-250 NXMS-1000 NXMS-1250 NXMS-1600 NXMS-630 45.5 51.5 84.7 24.5 30.5 37.8 16.5 30.5 44.5 12.5 Hmax 108.5 77.5...
  • Page 6 Figure 4 NXMS-160/250 back-panel Figure 5 NXMS-400/630 back-panel wiring outline and installation size wiring outline and installation size φ d1 Figure 6 NXMS-1000 back-panel wiring outline and installation size 8×φD 6×φd3 6×φD 4×φd3 Figure 7 NXMS series back-panel wiring mounting plate hole size...
  • Page 7 Mounting plate hole size (3P) Mounting plate hole size (4P) Installation diagram Figure 11 NXMS series plug-in wiring outline and installation size Table 2 - NXMS series back-panel wiring outline and installation size Unit: mm Product type Size type Size code...
  • Page 8: Installation And Wiring

    NXMS series Moulded-Case Circuit-Breaker Table 2 (Continued) Product type Size type Size code NXMS-400 NXMS-160 NXMS-250 NXMS-1000 NXMS-630 φd1 φ12 φ16 Outline size φd2 φD 130.5 Installation size 3P:94/4P:124 3P:107/4P:142 3P:142/4P:187 3P:214/4P:284 3P:60/4P:90 3P:70/4P:105 3P:88/4P:132 3P:90/4P:185 φd3 Installation and Wiring c ≤...
  • Page 9 NXMS series Moulded-Case Circuit-Breaker ≤ φ10.5 Cross sectional area: s s(b×c) 120 ≥ Installation × ≤ ≤ φ8.5 φ8.5 φ8.5 connect to breaker ≤ ≤ ≤ ≤ M8×16 12N·m Figure 13 NXMS-250 connecting plate and wire size 13.5 ≤ 30.5 φ14...
  • Page 10 NXMS series Moulded-Case Circuit-Breaker 5×φ11 connect to breaker 5×φ11 Installation Unit: mm M10×45(1000、1250) Rated current 30N·m M10×55(1600) 1600A 1250A/1000A Figure 17 NXMS-1250/1600 connecting plate and wire size Installation Figure 18 NXMS-160/250 connecting plate installation diagram Installation Figure 19 NXMS-400/630/1000 connecting plate installation diagram...
  • Page 11 NXMS series Moulded-Case Circuit-Breaker Parameter setting and communication Electronic release 0.9Ir 1.2Ir 110 125 0.3s Ir (A) tr ( Isd ( Ir 2Ir I Portable test unit (PTU) interface, interface type: Micro-USB Neutral protection setting current multiple (4P) Default (0.5 、 1.0) × In 、 OFF 、 OFF , 3 gears...
  • Page 12 NXMS series Moulded-Case Circuit-Breaker Rated instantaneous short time current setting: li Default For distribution (2、3、4、6、8 10 12) × In + OFF, 8 gear 、 、 (2、4、6、8 10 12 、 、 、14 ) × In + OFF, 8 gear For motor Short circuit short delay tripping time: tsd, 0.3s by default...
  • Page 13 (L Other sizes can be selected through Schematic diagram 400/630/1000 consultation with the manufacturer) of handle installation Figure 23 Manual operation mechanism installation size Table 3 - NXMS series manual operation mechanism installation size Unit: mm NXMS-400 NXMS-1250 Product type NXMS-160...
  • Page 14: Warranty

    RESET ZHEJIANG CHINT ELECTRICS CO., LTD. ZHEJIANG CHINT ELECTRICS CO., LTD. Figure 24 Electric operating mechanism outline and installation size Table 4 – NXMS series electric operating mechanism outline and installation size Unit: mm Product type Size type Size code...
  • Page 15: Environmental Protection

    NXMS series Moulded-Case Circuit-Breaker The following situations are not covered by the warranty: 1) Damage caused by user's improper use, storage and maintenance; 2) Damage caused by the organization or personnel not designated by the company, or by disassembly and maintenance without authorization;...
  • Page 16 NXMS 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: global-sales@chint.com Website: http://en.chint.com...

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