المقاولين,قاطع الدائرة,الاستشعار,التشفير,بلك,محول
Chint NB1-63/1PC63 is a قاطع الدائرة المصغرة (MCB) مع 1 القطب (1ص), a rated current of 63A, and a Type C tripping curve. It belongs to Chint’s NB1 product series and is suitable for circuits with AC 50Hz and a rated voltage of 230/400V, mainly used for overload and short-circuit protection.
I.Core Parameters and Functions
1. المواصفات الأساسية
– عدد القطب: 1ص (1 القطب), controls only the live wire; the neutral wire is connected directly.
– التصنيف الحالي: 63أ, suitable for high-power load circuits, such as air conditioners and electric water heaters.
– منحنى التعثر: النوع ج, applicable to lighting and general inductive loads. The instantaneous tripping range is 5-10 أضعاف التيار المقنن (أي., 315-630أ), which can quickly cut off the circuit in case of a short circuit.
– كسر القدرة: 6ال, which can effectively cut off the short-circuit current in the line to ensure safety.
– الجهد المقنن: 230/400الخامس و, compatible with single-phase and three-phase systems.
2. ميزات السلامة
– Complies with standards such as GB/T 10963.1 واللجنة الانتخابية المستقلة 60898-1, and has obtained certifications including CCC and CE, ensuring reliable quality.
– Equipped with overload long-delay protection and short-circuit instantaneous protection functions, which can replace traditional fuses.
– The shell is made of high flame-retardant plastic, providing excellent fire resistance. The terminal blocks are designed with anti-misinsertion features to improve installation safety.
ثانيا. Installation and Application
1. طريقة التثبيت
– Adopts standard TH35-7.5mm DIN rail installation, compatible with common distribution boxes for easy installation.
– The terminal blocks support a maximum 16mm² copper conductor, with a tightening torque of 2.0N·m to ensure a stable connection.
2. سيناريوهات التطبيق
– توزيع الطاقة السكنية: Can be used as the main incoming circuit breaker or branch protection for high-power appliances (such as air conditioners and ovens).
– Commercial and Industrial Use: Suitable for circuit protection of loads like lighting and small motors, especially in places where the required short-circuit breaking capacity does not exceed 6kA.
3. القدرة على التكيف البيئي
– نطاق درجة الحرارة: -35درجه مئوية إلى +70 درجه مئوية, but derating is required when the ambient temperature exceeds 30℃. على سبيل المثال, when the ambient temperature is 60℃, the rated current needs to be reduced to 53.2A (عامل التصحيح: 0.84).
– حد الارتفاع: Can be used normally below 2000m altitude; derating is required above 2000m (على سبيل المثال, على ارتفاع 2500 م, the current is reduced to 56.7A with a correction factor of 0.9).
ثالثا. توصيات السعر والشراء
1. سعر السوق
– Referring to quotes from e-commerce platforms and distributors, the unit price of NB1-63/1PC63 is usually between 11-37 يوان, and may drop to around 10 RMB during promotional activities.
– It is recommended to purchase through Chint’s official channel (واتساب: 0086-13811255435) لضمان جودة المنتج وخدمة ما بعد البيع.
2. نماذج بديلة
– لقدرة كسر أعلى (على سبيل المثال, 10ال), the NB1-63H series (such as NB1-63H/1PC63) يمكن اختيارها.
– For residual current protection function, it can be matched with the NB1LE-63 series residual current operated circuit breakers (such as NB1LE-63 1P+N C63).
رابعا. احتياطات الاستخدام
1. Model Selection and Matching
– The rated current should be calculated based on the load power to ensure the circuit breaker capacity is greater than the actual load current. على سبيل المثال, a 63A circuit breaker is suitable for circuits with a maximum power of approximately 14.5kW (230الخامس × 63A).
– Avoid using NB1-63/1PC63 in DC circuits; the NB1-63DC series should be selected for DC scenarios.
2. مواصفات التثبيت
– Power must be cut off before installation, and wiring should be completed by a professional electrician to ensure correct polarity (only controls the live wire).
– Regularly check the status of the circuit breaker. If contact ablation or frequent tripping is found, replace it in a timely manner.
V. الشهادة والدعم الفني
– معلومات الشهادة: Has obtained certifications including CCC, م, and VDE, complies with international standards, and can be used in most regions around the world.
– الوثائق الفنية: Product manuals, أدلة التثبيت, and certification certificates can be downloaded from Chint’s official website to obtain detailed parameters and usage instructions.
