مقدمة:
- The molded case circuit breakers manufactured by CNTN Electric feature a maximum rated insulation voltage of 800V. The ZMM1-63 model is suitable for 400V circuits, while other models are applicable to 50Hz AC systems rated at 690V or below, covering current ratings ranging from 63A to 800A; they are suitable for the occasional starting, stopping, and switching operations of electric motors.
- The CNTN molded-case circuit breaker features comprehensive multi-level safety protection—including overload, short-circuit, and undervoltage safeguards—to fully secure the operational safety of circuits and electrical equipment, effectively mitigating the losses and hazards associated with electrical faults.
- This series of circuit breakers features excellent short-circuit breaking performance and rapid arc extinction, effectively ensuring the operational stability of the system; it is the preferred choice for power distribution applications.
- The MCCB 125A 3-Pole molded case circuit breakers manufactured by CNTN Electric feature housings constructed from highly flame-retardant materials, ensuring effective arc isolation while providing protection against dust, moisture, and electric shock. These products can be directly installed in distribution cabinets and outdoor distribution boxes, preventing accidental contact with live components and ensuring electrical safety.
- The CNTN MCCB offers diverse and flexible installation options—supporting fixed, plug-in, and withdrawable configurations—and accommodates both horizontal and vertical mounting orientations. This adaptability ensures compatibility with a wide variety of cabinet spaces, making wiring and installation significantly more convenient.
- CNTN Electric can not only produce MCCB 125A 4-pole circuit breakers but also 125A 2-pole and 125A 3-pole versions according to customer requirements.
- إن MCCB الخاص بنا مناسب للدوائر ثلاثية الطور بأربعة أسلاك، ويمكن استخدامه أيضًا للدوائر ثلاثية الطور بثلاثة أسلاك وثلاثية الطور بسلكين.
- CNTN Electric not only manufactures MCCB125A 3-pole circuit breakers in AC types, but also produces قواطع الدائرة الكهربائية ذات الغلاف المصبوب DC.
- CNTN Electric offers molded-case circuit breakers with a diverse range of aesthetic configurations. In addition to the classic model featuring a white arc shield made of Bakelite, versions with gray and black plastic arc shields are also available, catering to the varied requirements of different settings and aesthetic preferences.
- Would you like to know the price of our MCCB 125A 3 Pole? Please اتصل بنا لمزيد من التفاصيل الآن!
البيانات الفنية
| النوع | ZMM1-63 | ZMM1-125 | ZMM1-160 | ZMM1-250 | ZMM1-400 | ZMM1-630 | ZMM1-800 | ||||||||
| بلوز | P | 3 | 3,4 | 2,3 | 3,4 | 3 | 2,3,4 | 3,4 | 3,4 | 3,4 | |||||
| التيار المقنن في | A | 10, 16,20, 25,32, 40,50, 63 | 10, 16,20, 25,32, 40,50, 63,80, 100, 125 | 100,125,140,160 | 100, 125,140 160,180, 200225, 250 | 225,250,315,350,400 | 400,500,630 | 630,700,800 | |||||||
| جهد العزل المقدر Ui | V | 500 | 800 | ||||||||||||
| الفولطية الدافعة مع الجهد الكهربائي Uimp | V | 6000 | 8000 | ||||||||||||
| جهد التشغيل المقدر Ue | V | AC400 | AC400/690 | ||||||||||||
| فئة القدرة على التحمل | L | M | L | M | L | L | M | L | M | L | M | L | M | ||
| الحد من سعة كسر الدائرة الكهربائية القصيرة Icu | ك أ | 230V | 35 | 50 | 35 | 50 | 35 | 35 | 50 | 50 | 75 | 50 | 75 | - | - |
| 400V | 25 | 35 | 25 | 50 | 35 | 35 | 50 | 50 | 65 | 50 | 65 | 75 | 75 | ||
| 690V | - | - | 8 | 10 | 8 | 8 | 10 | 10 | 20 | 10 | 20 | - | 30 | ||
| قدرة كسر الدائرة القصيرة العاملة Ics | ك أ | 230V | 18 | 50 | 18 | 50 | 22 | 22 | 50 | 50 | 50 | 50 | 50 | - | - |
| 400V | 18 | 22 | 18 | 25 | 18 | 18 | 25 | 35 | 32.5 | 35 | 42.5 | 50 | 50 | ||
| 690V | - | - | 4 | 5 | 4 | 4 | 5 | 5 | 10 | 5 | 10 | - | 15 | ||
| مسافة التقوس | مم | 50 | 100 | ||||||||||||
| تردد التشغيل | الحياة الكهربائية | 3000 | 3000 | 3000 | 3000 | 2000 | 2000 | 2000 | |||||||
| الحياة الميكانيكية | 20000 | 20000 | 20000 | 20000 | 10000 | 10000 | 10000 |
رموز أجهزة الإصدار والملحقات
ZMM1-125 (L، M) أسلاك اللوحة الأمامية (2 قطب، 3 أقطاب، 4 أقطاب) (X-X، Y-Y هي مراكز قاطع الدائرة الكهربائية ثلاثي الأقطاب)
ZMM1-125 (L، M، H) أسلاك اللوحة الأمامية الموصلة (3 أقطاب) (X-X، Y-Y هي مراكز قاطع الدائرة الكهربائية ثلاثي الأقطاب)









