Автоматический выключатель Schneider IC65N-3P/C20A

1. Core Parameters and Technical Characteristics

Основные характеристики

поляки: 3П (three poles), suitable for three-phase four-wire power distribution systems, capable of切断 three-phase power simultaneously.

Номинальный ток: 20А (under AC-3 duty category, can protect approximately 11kW loads at 400V).

Кривая срабатывания: Тип С (мгновенное отключение при 5-10 раз номинальный ток), suitable for conventional loads such as lighting and sockets, and can withstand short-term inrush currents (например, fluorescent lamp startup).

Разрывная способность: 6тот (400В и), meeting the short-circuit protection requirements of most low-voltage power distribution scenarios.

Электрические характеристики

Номинальное рабочее напряжение: 400В и, supporting 50/60Hz frequency.

Current Limiting Class: Class 3, which can quickly limit the rise of short-circuit current and reduce the risk of equipment damage.

Механическая жизнь: 200,000 операции; Электрическая жизнь: 100,000 операции, ensuring long-term stability and reliability.

Экологическая адаптивность

Рабочая температура: -35℃ to +70℃, подходит для суровых промышленных условий.

Moisture and Heat Resistance: Class 2 (55℃, 95% relative humidity), suitable for use in humid areas.

2. Сертификаты и стандарты

Внутренняя сертификация: Пройдена сертификация CCC, compliant with GB10963.1 “Защита от перегрузки по току Circuit Breakers for Household and Similar Premises” стандартный.

International Certification: CE certified, соответствует МЭК 60898-1 “Overcurrent Protection Circuit Breakers for Household and Similar Premises” стандартный, applicable to global markets.

Функция изоляции: The handle displays a green indicator when disconnected, meeting the isolation requirements of IEC 60947-2 to ensure maintenance safety.

3. Сценарии применения

Промышленная автоматизация: Used for short-circuit and overload protection in three-phase motor control circuits, cooperating with contactors to realize motor start-stop control.

Commercial Building Power Distribution: Protection for three-phase lighting systems, air conditioning units, and elevator power supplies in places such as shopping malls and office buildings.

Energy Infrastructure: Protection for output terminals of distributed energy equipment such as photovoltaic inverters and small generators.

Residential Three-Phase Incoming Line: Comprehensive protection of three-phase power for main distribution boxes in high-end residences or small factories.

4. Установка и подключение

Способ установки: Supports 35mm standard DIN rail mounting, with a width of only 54mm (3 столбы), saving distribution box space.

Характеристики проводки

Основная схема: Supports 1-25mm² single-strand hard wires or 1-16mm² flexible wires (with terminals), tightening torque is 2.5N·m.

Тип терминала: Tunnel-type terminal design, anti-misoperation and firm wiring, suitable for quick construction.

5. Выбор модели и альтернативные решения

Same Series Alternatives

IC65N-3P/D20A: Type D curve (мгновенное отключение при 10-14 раз), suitable for impulsive loads such as motors.

IC65H-3P/C20A: Breaking capacity increased to 10kA, suitable for industrial scenarios with high short-circuit currents.

International Brand Alternatives

ABB S263-C20: Compatible parameters, similar installation dimensions, отключающая способность 6кА.

Siemens 5SJ6 320-C20: Кривая типа C, отключающая способность 6кА, with overload alarm function.

6. Price and Purchase Suggestions

Market Reference Price: Примерно 25-30 yuan for single-pole, 70-90 yuan for 3P model (domestic channels in 2025).

Каналы покупки

Official Authorized Distributors: Such as Schneider WhatsApp: 0086-13811255435

Меры предосторожности

– For leakage protection, it is necessary to match the Vigi IC65N module (например, A9D65232) to achieve 30mA leakage action protection.

– Derating is required in high-temperature environments (>40℃). It is recommended to consult the technical manual or Schneider engineers.

7. Техническое обслуживание и устранение неполадок

Регулярный осмотр

– Clean the oxide layer on the contact surface every 6 months to ensure good contact.

– Check the flexibility of the handle operation to avoid tripping failure caused by mechanical jamming.

Поиск неисправностей

Частые отключения: May be caused by overload, короткое замыкание, or loose wiring; need to check the load and线路 one by one.

Contact Ablation: If blackening or adhesion of contacts is found, the circuit breaker must be replaced in time to avoid fire risks.

Based on the above information, IC65N-3P/C20A has become one of the mainstream choices in the low-voltage power distribution field due to its high reliability, flexible expandability, and wide applicability. In practical applications, a comprehensive evaluation based on load characteristics, environmental conditions, and installation space is required to ensure the safe and stable operation of the system.