Контактор,автоматический выключатель,солнечный инвертор,электрический счетчик,солнечные батареи
- Model Code Definition
| Segment | Код | Подробное описание |
| NM8N | Код серии | New-generation moulded case circuit breaker (MCCB) of Chint; N stands for upgraded version with higher breaking capacity |
| 1600 | Размер кадра | Maximum frame current: 1600А |
| С | Breaking Capacity Grade | Standard breaking type, 50тот (ultimate short-circuit breaking capacity at 400V) |
| Э | Trip Unit Type | Electronic intelligent trip unit with four-stage protection functions |
| М | Тип монтажа | Фиксированный тип; Необязательный: P=Plug-in, D=Draw-out |
| 3П | Номер полюса | 3-столб, for main protection of three-phase circuits |
| 1250А | Номинальный ток | Setting rated current In=1250A, long-term stable operating current |
| 50тот | Максимальная отключающая способность | Icu=50kA@400V, maximum short-circuit current that can be safely disconnected |
- Основные технические параметры
| Элемент | Ценить | Примечания |
| Номинальный ток (In) | 1250А | Electronic trip unit adjustable range: 800–1250A |
| Размер кадра | 1600А | Compatible with trip units ≤1600A |
| Номер полюса | 3П | Main protection for three-phase three-wire systems |
| Тип монтажа | Зафиксированный | Vertical / horizontal mounting available; top & bottom incoming line supported |
| Номинальное напряжение изоляции (Ui) | 1000В | Соответствует МЭК 60947-2 |
| Номинальное рабочее напряжение (Ue) | AC400В / AC690В | Applicable to power distribution systems of different voltage levels |
| Ultimate Short-circuit Breaking Capacity (Icu) | 50кА при 400 В | Standard S type; Ics=100%Icu |
| Service Short-circuit Breaking Capacity (Ics) | 50кА при 400 В | Resists multiple short-circuit current impacts |
| Trip Unit Type | Electronic Intelligent Type (Э) | Four-stage protection: длительная задержка, короткая задержка, мгновенный & замыкание на землю |
| Управляющее напряжение | Standard AC230V, optional DC220V | Power supply for shunt trip, under-voltage trip and control circuit |
| Механическая выносливость | ≥10,000 times | Industrial long-life design |
| Электрическая выносливость | ≥5,000 times | Making & breaking capacity under rated current |
| Температура окружающей среды | -40℃ ~ +70 ℃ | Adaptable to harsh industrial environments |
- Core Functions of Electronic Intelligent Trip Unit (E-Type)
- Full-range Protection: Accurate four-stage protection including long delay (inverse time), короткая задержка (fixed/inverse time), instantaneous trip (fixed time) and earth fault (fixed/inverse time).
- Monitoring Function: Real-time monitoring of three-phase current, fault current and operating status, with fault memory.
- Adjustable Parameters: Flexible adjustment of protection current and delay time for customized protection in various distribution systems.
- Communication Expansion: Optional Modbus-RTU communication module for remote monitoring and data transmission.
- Comprehensive Protection Features: Перегрузка, короткое замыкание, under-voltage, phase loss and three-phase unbalance protection to prevent equipment damage and electrical fire hazards.
- Сценарии применения
- Industrial Power Distribution: Incoming/outgoing circuit protection for main distribution cabinets in workshops and production lines; control circuits for large-capacity motors.
- Коммерческие здания: Distribution trunk protection for shopping malls, гостиницы, office buildings and large commercial complexes.
- Инфраструктура: Secondary power distribution protection for hospitals, schools, data centers and other key facilities.
- Energy Systems: Low-voltage distribution protection for photovoltaic power stations, wind power systems and substations.
- Защита двигателя: Overload and short-circuit protection for infrequently started large-capacity motors (водяные насосы, фанаты, компрессоры, и т. д.).
- Complete Accessory List (Classified by Function)
5.1 Операция & Control Accessories
| Название аксессуара | Модель | Функция | Applicable Scope |
| Шунтовая поездка | NM8N-F | Remote opening control, AC230V/DC220V optional | Full series; for emergency shutdown and remote control |
| Under-voltage Trip | NM8N-UVT | Delayable under-voltage protection to avoid equipment damage from undervoltage | Full series; essential for critical loads |
| Closing Solenoid | NM8N-CE | Remote closing control for automatic control systems | Full series; for frequent operation |
| Electric Operating Mechanism | MOD22-M8 | Electric energy storage, closing & opening to improve operation efficiency | 1600Рамка; suitable for unattended power distribution rooms |
| External Operating Handle | RH11 | Extended cabinet external operation for safety and convenience | Full series |
5.2 Вспомогательный & Alarm Accessories
| Название аксессуара | Модель | Конфигурация контактов | Функция |
| Вспомогательный контакт | NM8N-A1/A2/A4 | 1/2/4 переключающие контакты | Circuit breaker status indication and control circuit expansion |
| Контакт сигнализации | NM8N-B1/B2 | 1/2 переключающие контакты | Fault alarm signal output and equipment linkage |
| Вспомогательный & Alarm Combination | NM8N-AB | 2 вспомогательные контакты + 1 alarm contact | Integrated status monitoring and space saving |
| Prepaid Trip Unit | NM8N-PP | Remote power cut-off | Linked with prepaid system for automatic power outage on arrears |
5.3 Связь & Mounting Accessories
| Название аксессуара | Модель | Applicable Frame | Функция |
| Phase Barrier | NM8N-IS1600 | 1600Рамка | Standard inter-phase insulation barrier to prevent arc spreading |
| Front Connection Plate | FM22 | 1600Рамка | Dedicated for front wiring; enlarged terminal area for cable connection |
| Rear Wiring Kit | NM8N-RB | 1600Рамка | Dedicated for rear wiring, suitable for draw-out cabinets |
| Plug-in Base | NM8N-IB | 1600Рамка | Plug-in installation for easy maintenance and replacement |
| Terminal Protective Cover | NM8N-COVER | 1600Рамка | Dustproof and anti-touch protection for wiring terminals |
5.4 Безопасность & Expansion Accessories
| Название аксессуара | Модель | Функция | Приложение |
| Key Lock | NM8N-KL | Lock on/off status to prevent misoperation | Public areas and key equipment protection |
| Padlock Device | NM8N-LOCK | Lock circuit breaker at open position for safety isolation | Equipment maintenance and overhaul |
| Модуль связи | NM8N-MOD | Modbus-RTU protocol for remote monitoring and data upload | Smart power distribution and IoT systems |
| Residual Current Protection Module | NM8N-L | Leakage protection against electric shock and equipment leakage failure | Humid environments and densely populated areas |
- Cross-Brand Equivalent Comparison (Mainstream MCCB)
| Chint NM8N Model | Шнайдер NSX | ABB Tmax XT | Сименс 3ВТ | Changshu CM3 | Примечания |
| NM8N-1600SEM-3P-1250A-50kA | NSX1600N 1250A Micrologic 5.0 | XT4S1600 TMD 1250A 50kA | 3VT8416-1AA03-0AA0 | CM3-1600H/3340 1250A | 1600Рамка, электронное путешествие, 50кА разрыв |
| NM8N-1600SPM-3P-1250A-50kA | NSX1600N 1250A Micrologic 2.0 | XT4S1600 TMD 1250A 50kA | 3VT8416-1AA03-0AA0 | CM3-1600H/3300 1250A | Тип плагина, standard protection |
| NM8N-1600EDM-3P-1250A-50kA | NSX1600N 1250A Micrologic 5.0 | XT4S1600 TMD 1250A 50kA | 3VT8416-1AA03-0AA0 | CM3-1600H/3340 1250A | Draw-out type, intelligent protection |
- Выбор & Procurement Guidelines
- Breaking Capacity Selection: 50kA standard S type for general industrial and commercial distribution; select H type (70тот) or HH type (100тот) for higher breaking requirements.
- Trip Unit Selection: Electronic intelligent E-type for precise protection and remote monitoring; thermal-magnetic T-type for conventional distribution scenarios.
- Тип монтажа: Low-cost fixed type (М); replaceable plug-in type (П); draw-out type (Д) for critical load maintenance.
- Accessory Configuration:
Essential: 1~2 sets of auxiliary contacts and under-voltage trip for basic control and protection.
Необязательный: Electric operating mechanism, communication module and residual current module to enhance intelligence and safety.
- Certification Compliance: Compliant with GB14048.2 and IEC 60947-2, with CE & UL certifications to ensure product quality and operational safety.
Chint NM8N Series MCCB Complete Model List & Price Guide
- Complete Naming Rule
NM8N-□□□□-□□-□□-□P
| Segment | Definition | Optional Code | Описание |
| NM8N | Ряд | Зафиксированный | Chint upgraded MCCB series with enhanced breaking performance |
| Размер кадра | Max frame current | 125,160,250,400,630,800,1250,1600 | Covering 125A~1600A rated current |
| Breaking Grade | Short-circuit capacity | С(Стандартный),ЧАС(Высокий),Р(Current-limiting),вопрос, С | S=50kA, H=70kA, R=100kA, Q=120kA, C=150kA@400V |
| Тип поездки | Protection mode | ТМ(Thermal-Magnetic), EM(Электронный) | ТМ: overload inverse time + мгновенное короткое замыкание; EM: four-stage intelligent protection |
| Номинальный ток | Setting current | 16~1600A | Electronic trip adjustable: 63%~100% of rated current |
| Монтаж | Installation form | М(Зафиксированный), П(Плагин), Д(Draw-out) | Universal installation options for cabinet design |
| Номер полюса | Main poles | 1P/2P/3P/4B/4C | 4Б: 4-столб (N non-protected); 4С: 4-столб (N protected) |
| Breaking Current | яcu | 25/36/50/70/100/120/150тот | 400V short-circuit breaking parameter |
- Full Model List by Frame Size
2.1 125Рамка (NM8N-125)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 63~125A | М | 3П | NM8N-125S TM 125 M 3P | 65–80 |
| С(50тот) | EM | 80~125A | М | 4С | NM8N-125S EM 100 M 4C | 108–128 |
| ЧАС(70тот) | ТМ | 100~125A | П | 3П | NM8N-125H TM 125 P 3P | 90–108 |
| Р(100тот) | EM | 125А | Д | 3П | NM8N-125R EM 125 D 3P | 165–205 |
2.2 250Рамка (NM8N-250)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 160~250A | М | 3П | NM8N-250S TM 250 M 3P | 136–160 |
| вопрос(120тот) | ТМ | 125~160A | М | 2П | NM8N-250Q TM 125 M 2P | 272–305 |
| ЧАС(70тот) | EM | 200~250A | П | 3П | NM8N-250H EM 250 P 3P | 233–270 |
| Р(100тот) | EM | 250А | Д | 4С | NM8N-250R EM 250 D 4C | 318–368 |
2.3 400Рамка (NM8N-400)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 315~400A | М | 3П | NM8N-400S TM 400 M 3P | 180–215 |
| С(150тот) | ТМ | 315~400A | М | 3П | NM8N-400C TM 400 M 3P | 248–290 |
| ЧАС(70тот) | EM | 350~400A | П | 3П | NM8N-400H EM 400 P 3P | 330–385 |
| Р(100тот) | EM | 400А | Д | 4С | NM8N-400R EM 400 D 4C | 440–500 |
2.4 630Рамка (NM8N-630)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 500~630A | М | 3П | NM8N-630S TM 630 M 3P | 305–355 |
| ЧАС(70тот) | ТМ | 630А | М | 4С | NM8N-630H TM 630 M 4C | 388–445 |
| Р(100тот) | EM | 500~630A | П | 3П | NM8N-630R EM 630 P 3P | 528–595 |
| С(150тот) | EM | 630А | Д | 3П | NM8N-630C EM 630 D 3P | 665–750 |
2.5 800Рамка (NM8N-800)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 630~800A | М | 3П | NM8N-800S TM 800 M 3P | 430–495 |
| ЧАС(70тот) | EM | 800А | М | 4С | NM8N-800H EM 800 M 4C | 585–655 |
| Р(100тот) | EM | 800А | П | 3П | NM8N-800R EM 800 P 3P | 735–820 |
| С(150тот) | EM | 800А | Д | 3П | NM8N-800C EM 800 D 3P | 905–1005 |
2.6 1250Рамка (NM8N-1250)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 1000~1250A | М | 3П | NM8N-1250S TM 1250 M 3P | 665–750 |
| ЧАС(70тот) | EM | 1250А | М | 3П | NM8N-1250H EM 1250 M 3P | 860–960 |
| Р(100тот) | EM | 1250А | П | 3П | NM8N-1250R EM 1250 P 3P | 1040–1150 |
| С(150тот) | EM | 1250А | Д | 4С | NM8N-1250C EM 1250 D 4C | 1290–1415 |
2.7 1600Рамка (NM8N-1600)
| Ломать | Путешествие | В | Mount | поляк | Модель | Справочная цена(доллар США) |
| С(50тот) | ТМ | 1250~1600A | М | 3П | NM8N-1600S TM 1600 M 3P | 905–1005 |
| С(50тот) | EM | 1250А | М | 3П | NM8N-1600S EM 1250 M 3P | 1220–1350 |
| ЧАС(70тот) | EM | 1600А | М | 3П | NM8N-1600H EM 1600 M 3P | 1450–1610 |
| Р(100тот) | EM | 1600А | Д | 3П | NM8N-1600R EM 1600 D 3P | 1795–2010 |
- Специальная серия
3.1 DC MCCB (NM8NDC)
| Рамка | Текущий | Ломать | поляк | Модель | Цена(доллар США) |
| 125А | 100А | 25тот | 2П | NM8NDC-125B TM 100 2П | 80–95 |
| 400А | 315А | 36тот | 3П | NM8NDC-400C TM 315 3П | 248–290 |
| 1600А | 800А | 36тот | 3П | NM8NDC-1600C TM 800 3П | 720–805 |
3.2 Leakage Protection MCCB (NM8NL)
| Рамка | Текущий | Leakage Current | поляк | Модель | Цена(доллар США) |
| 125А | 63А | 500мА | 4Б | NM8NL-125S TM 63 4B RCD2 | 510–550 |
| 250А | 160А | 2000мА | 3П | NM8NL-250S EM 160 3P RCD4 | 990–1050 |
| 400А | 315А | 500мА | 4С | NM8NL-400H EM 315 4C RCD4 | 1360–1460 |
- Price Factors & Purchasing Advice
4.1 Price Influencing Factors
| Фактор | Price Fluctuation | Объяснение |
| Breaking Grade | +20%~+150% | Price rises 20%~30% per grade from S to C type |
| Trip Unit | +40%~+80% | Electronic EM type 40%~80% higher than thermal-magnetic TM type |
| Тип монтажа | +15%~+40% | Plug-in +15%~20%, Draw-out +30%~40% vs fixed type |
| Номер полюса | +10%~+50% | 4-pole 10%~20% higher than 3-pole |
| Номинальный ток | +5%~+30% | Higher current within the same frame leads to higher cost |
| Аксессуары | +10%~+100% | Шунтовая поездка +10%, under-voltage trip +15%, electric mechanism +80%~100% |
4.2 Selection Tips
- Разрывная способность: С(50тот) for general use; ЧАС(70тот) for heavy industrial; Р(100тот) for key facilities.
- Trip Unit: TM for conventional distribution; EM for intelligent monitoring and precise protection.
- Mounting Solution: Fixed for cost-saving; Plug-in for easy replacement; Draw-out for critical loads.
- Сертификация: Meet GB & IEC standards with CE/UL certification for global project delivery.
- Quick Selection Reference
| Приложение | Рекомендуемая модель | Ключевые параметры | Цена(доллар США) |
| Residential Distribution | NM8N-125S TM 100 M 3P | 125Рамка, 100А, 50тот, 3П | 65–80 |
| Коммерческое здание | NM8N-250S TM 200 M 3P | 250Рамка, 200А, 50тот, 3П | 136–160 |
| Industrial Workshop | NM8N-400H EM 350 M 3P | 400Рамка, 350А, 70тот, электронное путешествие | 330–385 |
| Large Factory | NM8N-800R EM 800 P 3P | 800Рамка, 800А, 100тот, plug-in | 735–820 |
| Data Center | NM8N-1600C EM 1600 D 3P | 1600Рамка, 1600А, 150тот, draw-out | 1795–2010 |
Примечание: All prices are 2026 April market reference prices. Actual prices vary by purchase quantity, region and distributor. Confirm official quotation from authorized Chint dealers before ordering.
