Compact Air Circuit Breaker

Looking for a reliable Compact Air Circuit Breaker? Our factory manufactures high-quality circuit breakers for all your electrical needs. Contact us today!
Request a Quote

PRODUCTS DETAILS

Basic Info.

Model NO.
QDW3
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification
ISO9001-2000, CE, CB, CCC
Transport Package
Wooden Case
Specification
200A - 1600A
Trademark
Q&S
Origin
Zhejiang, China
HS Code
8536200000
Production Capacity
30000 PCS / Year

Product Description

QDW3 series universal Air circuit breaker(hereinafter referred to as breaker)is suitable for the circuit of AC 50Hz with rated voltage 400V, 690V and rated current up to 6300A. It is mainly used to distribute electric energy and protect circuits and power-supply equipment from overload, under-voltage, short-circuit and single-phase earthing. with intelligentized and selective protection functions, the breaker can improve the reliability of power supply, and avoid unnecessary power failure. The breaker is applicable for power stations, factories, mines(for 690V) and modern high-buildings, especially for the distribution system of intelligentized building. This breaker conforms to IEC60947-2 and GB14048.2 and CE.

Specifications of Q&S brand QDW3 series Intelligent Air circuit breaker

Type     QDW3 -2000 QDW3-3200 QDW3-6300
Pole     3P, 4P 3P, 4P 3P, 4P
Using category     B B B
Rated current In   A 630, 800, 1000, 1250, 1600, 2000 2000, 2500, 3000 4000, 5000, 6300
Rated frequency   Hz 50/60 50/60 50/60
Rated operation voltage Ue   V 400  690 400   690 400  690
Rated insulation voltage Ui   V 800 800 800
Arcing distance   mm 0 0 0
Rated impulse withstanding voltage Uimp   V 8000 8000 8000
Rated operation short circuit
breaking capacity Ics(O-t-CO-t-CO)
400V ka 50 80 100
690V ka 40 50 75
Rated limiting short circuit
breaking capacity Icu(O-t-CO)
400V ka 80 100 120
690V ka 50 65 85
Rated short circuit closing capacity Icm 400V ka 176 220 264
690V ka 105 143 187
Rated short time withstanding
current Icw(O-t-CO, AC400V 0.4s)
400V ka 50 65 85
Operation life per hour Times 20 20 10
  Electrical Times 1000 500 500
  Mechanical Times 10000 5000 5000
Full breaking time   ms 20~30 20~30 20~30
Full closing time   ms 55~70 55~70 55~70
Power consumption 3P W 360 1200 2000
  4P W 450 1750 2300
Resistance of each pole Fixed type μ Ω 11 9 -
  Draw out type μ Ω 20 14 10
Dimensions(L*W*H) 3P fixed type mm 362*323*402 422*323*402  
  3P draw out type mm 375*461*452 435*471*452  
  4P fixed type mm 457*323*402 537*323*402  
  4P draw out type mm 470*461*452 550*471*452  
Approximate weight 3P fixed type kg 41 55  
  3P draw out type kg 71 95 245
  4P fixed type kg 51.5 65  
  4P draw out type kg 86 115 260
Compact Air Circuit Breaker Compact Air Circuit Breaker Compact Air Circuit Breaker Compact Air Circuit Breaker

Contact us

Please feel free to give your inquiry in the form below We will reply you in 24 hours