MCCB de 4 polos de 250A

Introdução:

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.
Este MCCB oferece opções de instalação flexíveis e versáteis, suportando montagem fixa, plug-in e removível, e pode ser instalado vertical ou horizontalmente.
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.
Nosso MCCB é adequado para circuitos trifásicos de quatro fios e também pode ser usado para circuitos trifásicos de três fios e trifásicos de dois fios.
CNTN Electric not only manufactures MCCB 250A 4-pole circuit breakers in AC types, but also produces Disjuntores em caixa moldada DC.
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 Entre em contato conosco para mais detalhes agora!

Dados técnicos


Tipo			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
Corrente nominal Em	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
Tensão nominal de isolamento Ui	V		500		800
Tensão nominal de impulso com resistência Uimp	V		6000		8000
Tensão nominal de operação Ue	V		AC400		AC400/690
Classe de capacidade de ruptura			L	M	L	M	L	L	M	L	M	L	M	L	M
Limite da capacidade de interrupção de curto-circuito 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
Capacidade de interrupção de curto-circuito de trabalho 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
Distância de arco	mm		50							100
Frequência de operação	Vida elétrica		3000		3000		3000	3000		2000		2000		2000
	vida mecânica		20000		20000		20000	20000		10000		10000		10000

Códigos para dispositivos de liberação e acessórios

Fiação do painel frontal do ZMM1-125 (L, M) (2 polos, 3 polos, 4 polos) (X-X, Y-Y são os centros do disjuntor de 3 polos) ZMM1-125 (L, M, H) Fiação do painel frontal plugável (3 pólos) (X-X, Y-Y são os centros do disjuntor de 3 pólos)