Introduction :
- 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.
- Notre MCCB convient aux circuits triphasés à quatre fils et peut également être utilisé pour les circuits triphasés à trois fils et triphasés à deux fils.
- CNTN Electric not only manufactures MCCB125A 3-pole circuit breakers in AC types, but also produces Disjoncteurs DC à boîtier moulé.
- 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 nous contacter pour plus de détails dès maintenant !
Données techniques
| Type | ZMM1-63 | ZMM1-125 | ZMM1-160 | ZMM1-250 | ZMM1-400 | ZMM1-630 | ZMM1-800 | ||||||||
| Plose | P | 3 | 3,4 | 2,3 | 3,4 | 3 | 2,3,4 | 3,4 | 3,4 | 3,4 | |||||
| Courant nominal In | 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 | |||||||
| Tension nominale d'isolation Ui | V | 500 | 800 | ||||||||||||
| Tension nominale d'impulsion et de tenue Uimp | V | 6000 | 8000 | ||||||||||||
| Tension nominale de fonctionnement Ue | V | AC400 | AC400/690 | ||||||||||||
| Classe de capacité de rupture | L | M | L | M | L | L | M | L | M | L | M | L | M | ||
| Limite du pouvoir de coupure en cas de court-circuit Icu | kA | 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 | ||
| Pouvoir de coupure en court-circuit Ics | kA | 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 | ||
| Distance d'arc | mm | 50 | 100 | ||||||||||||
| Fréquence de fonctionnement | Durée de vie électrique | 3000 | 3000 | 3000 | 3000 | 2000 | 2000 | 2000 | |||||||
| durée de vie mécanique | 20000 | 20000 | 20000 | 20000 | 10000 | 10000 | 10000 |
Codes pour les dispositifs de déclenchement et les accessoires
ZMM1-125 (L, M) câblage du panneau avant (2 pôles, 3 pôles, 4 pôles) (X-X, Y-Y sont les centres du disjoncteur 3 pôles)
ZMM1-125 (L, M, H) Câblage du panneau avant enfichable (3 pôles) (X-X, Y-Y sont les centres du disjoncteur tripolaire)









