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Air Circuit Breaker YCW1

YCW1 series intelligent air circuit breakers (hereinafter called ACB) are applied for the network circuit of AC 50Hz, rated voltage 400V, 690V and rated current between 630A and 6300A. Mainly used for distributing energy and protecting the circuit and power supply device against short-circuit, undervoltage, single-phase ground fault, etc. The ACB has intelligent protection function and the key parts adopt intelligent release. The release can make the accurate selective protection, which can avoid cutting off the power and improve the reliability of power supply. The products conform with IEC60947-1, IEC60947-2 standards.
  • YCW1
  • ENGELEC
  • YCW1
Size:

Air Circuit Breaker YCW1


Main Specification:

Type


YCW1-2000

YCW1-3200

YCW1-6300

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

50

50

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)

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

μΩ

11

9

-

Draw out type

μΩ

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

 

Overload protection data 

  

Overload protection


YCW1-2000~6300

Adjust scope Ir1


(0.4-1)In (pole difference 2%)

1.05 Ir1

h

≥2h non-tripping

1.3 Ir1

h

≤1h tripping

Delay time tr1 when current is 2.0 In

s

3.32, 5.32, 8.00, 13.3, 20, 26.6, 33.3, 45, 60, 93.3, 133, 200, 266, 333, 400, 433

Delay time tr1 when current is 3.0 In

s

1.25, 2, 3.5, 7.5, 10, 12.5, 16.8, 22.5, 35, 50, 75, 100, 125, 150, 162

Accuracy

%

±10

 

 

 

 

 

Short circuit, short time delay 

Adjust scope Ir1 Ir2


(0.4-15)In (pole difference 2%)

Delay time tr2

ms

100, 200, 300, 400

Accuracy

%

±10

 



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