CM1 like Chint NM1 63A 100A 225A 400A 630A 800A 1250A 1600A 3 pole 4 pole AC and DC moulded case circuit breaker

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HKM1 series Molded Case Circuit Breakers M1-100A  With residual current protection

1.Application

Molded Case Circuit Breakers M1 series (hereinafter called as M1 MCCB) is a new designed MCCB developed and manufactured adopting international advanced technology. M1 MCCB rated insulating voltage AC 800V is suitable for using in the circuits of AC 50HZ/60HZ,rated voltage up to 690V, rated working current up to 630A to distribute electric power and to protect the line and the equipment from being damaged due to overload short current and under-voltage. It can also be used for infrequently switch and starting of motor and for motor overload, short circuit and under-voltage protections. M1 MCCB with the advantages of the small volume, high breaking capacity, short over-arcing (some of specification is zero arcing), strong anti-vibration and so on.

In accordance with the ultimate short circuit breaking capacity classified into four types: Type C(basic), Type L(standard), Type M(middle), Type H(high).

MCCB comply with the following standards:

IEC60497-1 and GB/T 14048.1 General

IEC60497-2 and GB/T 14048.2 Low voltage breakers

IEC60497-4 and GB/T 14048.4 Contactors and motor starters

IEC60497-5.1 and GB/T 14048.5 Electrical equipments of electro-mechanical control circuit

2.Working Condition

*Not over altitude 2000m

*Ambient temperature is between-5°c to +40 °c (+45 °c for using marine)

*Withstand the influence of moist air.

*Smoke fog, salt mist and oil mist

*Withstand the influence of fungus.

*Max gradient is 22.5

*Working reliable under the condition of normal vibration in ship

*Working in the medium which not an explosive, no enough dielectric to corrode metal, no gas to damageinsulation and electric conduction dust.

*Working in the place would not be invaded by rain and snow

*Classification according to rated current(A)

M1-63 has nine grades:(6),10,16,20,25,32,40,50,63A

M1-100 has ten grades:(10),16,20,25,32,40,50,63,80,100A

M1-160 has four grades:100,120,140,160A

M1-225 has seven grades:100,125,140,160,180,200,225A

M1-400 has five grades:225,250,315,350,350,400A

M1-630 has three grades:400A,500A,630A

M1-800 has three grades:630,700,800A

M1-1250 has three grades:800,1000,1250A

(Specifications in breakers is not recommend)

*The wiring method has four ways wiring in front of the board, wiring on back of the board, insertion type in front of the board and insertion type on back of the board.

*According to the over-current release pattern, it would be divided two types: thermo-electromagnetic(double)type and electromagnetic (instantancous)type.

*According to the outfit, it also has two types: with or without outfit. The outfit include inner and outside accessories.

*The inner accessories have shunt release. Under-voltage release. Auxiliary contact and alarm contacts four kinds.

*The outside accessories are turning handle operation mechanism, power-driven operation mechanism, inter locking mechanism and the connecting terminal busbar of auxiliary device.

3.Protection Characteristics

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