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YCM3  Moulded Case Circuit Breaker

Application:

YCM3 series moulded case circuit breaker is one of the most advanced type breaker in the world, which adopts international advanced design and manufacture technology. They are suitable for short circuit and overload protection in circuit of AC 690V 50/60Hz,rated current from 12.5A to 630A. Its rated insulation voltage is 690V. It can make and break the unfrequently circuit under normal conditions. It takes protecting effect when mouse cage motors unfrequently start, making&breaking and protecting against overload, short circuit and lacking voltage.

1.Tripping Characteristics

Rated Current of release

Themodynamic Release (ambient temp+40C)

Operational Current of Magnetic Release (A)

1.05In(cold state) operative time(h)

1.30In(heat state) operative time(h)

In63

1

<1

10In 20%

63In100

2

<2

10In20%

100<In630

2

<2

5-10In20%

Rate Current of release(A)

Themodynamic Release (ambient temp+40C)

Operational Current of

Magnetic Release(A)

1.0In(cold state) operative time(h)

1.20In(heat state)

 operative time(h)

1.50In(heat state)

 operative time(h)

1.01In(heat state)

 operative time(h)

12.5In400

2

<2

4min

2S<Tp10S

12In20%

2.Main Technical specifications

Type

Rated

Current(A)

Poles

Rated Insulating

Voltage(V)

Rated Operating

Voltage(V)

Arcing Over Distance (mm)

Ultimate Short Circuit Breaking Capacity(KA)

Servies Short Circuit Breaking Capacity(KA)

Operating

performance(times)

ON

OFF

YCM3-100D

12.5,16,

20,25,32,

40,50,63,

80,100

3,4

950

690

0

18

18

1500

8500

YCM3-100N

25

25

YCM3-100H

70

70

YCM3-100L

150

150

YCM3-160D

16,20,25,

32,40,50,

63,80,100,

125,160

25

25

1000

7000

YCM3-160N

36

36

YCM3-160H

70

70

YCM3-160L

150

150

YCM3-250D

160,180,200,

225,250

25

25

1000

7000

YCM3-250N

36

36

YCM3-250H

70

70

YCM3-250L

150

150

YCM3-400D

200,225,250,

300,315,400

35

35

1000

4000

YCM3-400N

45

45

YCM3-400H

70

70

YCM3-400L

150

150

YCM3-630D

315,350,400,

500,600,630

35

35

1000

4000

YCM3-630N

45

45

YCM3-630H

70

70

YCM3-630L

150

150

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