Moulded case circuit breaker（MCCB） JCNSX-400NT JCNSX-630NT

Breaking capacity levels

F

N

H

S

L

Electrical characteristics as per IEC/EN 60947-2

Rated current (A)

In

40 ℃

400

Number of poles

3, 4

Breaking capacity (kA rms)

lcu

AC 50/60 Hz

220/240 V

40

85

100

120

150

380/415 V

36

50

70

100

150

440 V

30

42

65

90

130

500 V

25

30

50

65

70

525 V

20

22

35

40

50

660/690 V

10

10

20

25

35

Service breaking capacity (kA rms)

lcs

%Icu

<500V

100%

Durability (C-O cycles)

Mechanical

15000

Electrical

415V

In

7000

440V

In/2

12000

In

6000

690 V

In/2

6000

In

3000

Characteristics as per Nema AB1

Breaking capacity (kA rms)

AC 50/60 Hz

240 V

40

85

100

120

150

480 V

30

42

65

90

130

600 V

-

20

35

40

50

Characteristics as per UL 508

Breaking capacity (kA rms)

AC 50/60 Hz

240 V

85

85

85

-

-

480 V

35

50

65

-

-

600 V

20

20

20

-

-

Protection and measurements　

Short-circuit protection

Magnetic only

■

Overload / short-circuit protection

Thermal magnetic

■

Electronic

■

With neutral protection  (Off-0.5-1-OSN)

■

With ground-fault protection

■

With zone selective interLocking (ZSI)

■

Display / I,U,f,P,E,THD measurements / interruPTed-current measurement

■

Options

Power Meter display on door

■

Operating assistance

■

Counters

■

Histories and alarms

■

Metering Com

■

Device status/control Com

■

Earth-leakage protection

By Vigi add-on

■

By Vigirex relay

■

Installation / connections

Dimensions and weights

Dimensions (mm)

W x H x D

Fixed, front connections

2/3P

140 x 255 x 110

4P

185 x 255 x 110

Weight (kg)

Fixed, front connections

2/3P

6.05

4P

7.9

Connections

Connection terminals

Pitch

With/without spreaders

45/52.5 mm

45/70 mm

Large Cu or Al cables

Cross-section

mm²

4 x 240

Breaking capacity levels

F

N

H

S

L

Electrical characteristics as per IEC/EN 60947-2

Rated current (A)

In

40 ℃

630

Number of poles

3, 4

Breaking capacity (kA rms)

lcu

AC 50/60 Hz

220/240 V

40

85

100

120

150

380/415 V

36

50

70

100

150

440 V

30

42

65

90

130

500 V

25

30

50

65

70

525 V

20

22

35

40

50

660/690 V

10

10

20

25

35

Service breaking capacity (kA rms)

lcs

%Icu

<500V

100%

Durability (C-O cycles)

Mechanical

15000

Electrical

415V

In

7000

440V

In/2

8000

In

4000

690 V

In/2

6000

In

2000

Characteristics as per Nema AB1

Breaking capacity (kA rms)

AC 50/60 Hz

240 V

40

85

100

120

150

480 V

30

42

65

90

130

600 V

-

20

35

40

50

Characteristics as per UL 508

Breaking capacity (kA rms)

AC 50/60 Hz

240 V

85

85

85

-

-

480 V

35

50

65

-

-

600 V

20

20

20

-

-

Protection and measurements　

Short-circuit protection

Magnetic only

■

Overload / short-circuit protection

Thermal magnetic

■

Electronic

■

With neutral protection  (Off-0.5-1-OSN)

■

With ground-fault protection

■

With zone selective interlocking (ZSI)

■

Display / I,U,f,P,E,THD measurements / interrupted-current measurement

■

Options

Power Meter display on door

■

Operating assistance

■

Counters

■

Histories and alarms

■

Metering Com

■

Device status/control Com

■

Earth-leakage protection

By Vigi add-on

■

By Vigirex relay

■

Installation / connections

Dimensions and weights

Dimensions (mm)

W x H x D

Fixed, front connections

2/3P

140 x 255 x 110

4P

185 x 255 x 110

Weight (kg)

Fixed, front connections

2/3P

6.2

4P

8.13

Connections

Connection terminals

Pitch

With/without spreaders

45/52.5 mm

45/70 mm

Large Cu or Al cables

Cross-section

mm²

4 x 240