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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: DAQCN
  • Model Number: NOM1
  • Type: Moulded Case
  • Poles Number: 3
  • Product name: Mccb Moulded Case Circuit Breaker
  • Rated current: 630A
  • Rated voltage: 690V
  • Rated frequency: 50/60 Hz
  • Material: Plastic
  • Standard: IEC60947
  • Mechanical Life: 20000 Times

Packaging & Delivery

Packaging Details Corrugated Carton
Delivery Time 15-20DAYS
Product Description




Moulded Case Circuit Breakers NOM1 series (hereinafter called as NOM1 MCCB) is a new designed MCCB developed and mamifactured adopting international advanced technology. NOM1 MCCB rated insulating voltageAC 800V is suitable for using in the circuit ot 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 anti under—voltnge protections. NOM1 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 classifide into four types:Type C (basic), Type L(standard). Type M (middle), Type H (high).
MCCB comply with the following standards:
∗ IEC 60947-1 and GB/T 14048.1 General
IEC 60947-2 and GB/T 14048.2 Low voltage breakers.
IEC 60947-4 and GB/T 1 4048.4 Contactors and motor starters.
IEC 60947-5.1 and GB/T 14048.5 Electrical equipment of electro—mechanical control circuit.


Not over altitude 2000m.
Ambient temperature is between—5+40℃(+45 for using marine)
Withstand the influence of moist air;
Smoke fog, salt mist and oil mist;
∗ Withstand rhe influence of fungus;
∗ Max gradient is 22.5
Working reliably under the condition of normal vibration in ship;
Working in the medium which not any explosive, no enough dielectric to corrode metal, no gas to damage
insulation and electric conduction dust.
Working in the place would not be invaded by rain and snow.
Classification according to rated current (A):
NOM1-63 has nine grades: (6), 10,16,20,25,32,40,50,63A
NOM1-100 has ten grades: (10), 16, 20,25,32,40,50,63,80,100A
NOM1-160 has four grades: 100, 120,140,160A
NOM1-225 has sevt^n grades: 100,125,140,160,180,200,225A
NOM 1—400 has live grades: 225,250,315,350,400A
NOM1—630 has three grades: 400,500,630A
NOM1—800 has three grades: 630,700, 800A
NOM1 —1250 has three grades: 800,1000,1250A [spccitications in brackets is not recommend].
The wiring method has four ways: wiring ill 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 he divided two types: thermo—electromagnetic (dou-ble)typc and electromagnetic (instantaneous) 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 tuning handle operation inechani-snu power—driven operation mechanism,inter locking mechanism and the connecting terminal busbar of auxiliary device.







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Quality management is the wings of DAQUAN and is the primer life power of DAQCN brand. The company , which completely carries out quality management ,has passed International Quality System Attestation ISO9001 and CE.

Strict quality testing procedures ,Advanced testing equipment and highly trained quality control personnel , Guarantee Filmography "products manufactures pass rate 100%" of the quality objectives.


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