Introduction :
- CNTN Electric molded-case circuit breakers offer reliable performance with a rated insulation voltage of up to 800V. The ZMM1-63 model is designed for 400V applications, with the full series covering current ratings ranging from 63A to 800A. Capable of stable operation in 50Hz AC environments at 690V and below, these breakers are specifically engineered for motor circuits involving infrequent switching operations.
- Our molded case circuit breakers are equipped with overload, short‑circuit and under‑voltThis MCCB offers flexible installation options, including fixed, plug‑in and draw‑out types, and can be mounted vertically or horizontally.age protection, which safeguards circuits and electrical equipment from damage.
- Our circuit breakers feature high short‑circuit breaking capacity and fast arc extinction, making them an ideal choice for users.
- Molded case circuit breakers from CNTN Electric adopt high‑flame‑retardant materials to isolate electric arcs effectively, with dustproof, moisture‑proof and electric‑shock‑proof functions. They can be directly installed in power distribution cabinets or outdoor boxes to prevent accidental contact with live parts.
- Ce MCCB offre des options d'installation flexibles et polyvalentes, prenant en charge le montage fixe, enfichable et débrochable, et peut être installé verticalement ou horizontalement.
- CNTN Electric can not only produce MCCB 250A 4-pole circuit breakers but also 250A 2-pole and 250A 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 MCCB 250A 4-pole circuit breakers in AC types, but also produces Disjoncteurs DC à boîtier moulé.
- CNTN Electric supplies molded case circuit breakers with bakelite‑made white arc shields, as well as grey and black plastic arc shield versions.
- Would you like to know the price of our 250A 4 Pole MCCB? 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)
