J7MN

Features

J7MN is a range of motor-protection circuit breakers from 0.10-100A

The J7MN motor starters protect motors against thermal overload and short circuit. The Motor protection circuit breakers can be equipped with additional auxiliary contacts, front or side mounted. Other options are circuit trip alarm units, undervoltage and shunt release units. To make wiring easy we provide as well busbar system.

  • Available rated operational currents to 32 A, 63 A and 100 A
  • Switching capacity is mainly 50 kA/400 V or 100 KA/400 V
  • All Motor Protection Circuit breaker can be mounted on a DIN-rail
  • For the range to 32A we provide electro-mechanical links modules
  • All components are finger proof
Specifications & ordering info

Ordering information

Rated current in A

Suitable for motors
3 ~ 400 V kW

Current setting range

Short-circuit breaking capacity at 3 ~ 400 V kA

Size in mm (H × W × D)

Order code

Thermal
overload release A

Instantaneous
short-circuit release A

0.16

-

0.10- 0.16

2.1

100

98 × 45 × 75

J7MN-3P-E16

0.25

0.06

0.16-0.25

3.3

100

J7MN-3P-E25

0.4

0.09

0.25-0.4

5.2

100

J7MN-3P-E4

0.63

0.18

0.4-0.63

8.2

100

J7MN-3P-E63

1

0.25

0.63-1

13

100

J7MN-3P-1

1.6

0.55

1-1.6

20.8

100

J7MN-3P-1E6

2.5

0.75

1.6-2.5

32.5

100

J7MN-3P-2E5

4

1.5

2.5-4

52

100

J7MN-3P-4

6

2.2

4-6

78

100

J7MN-3P-6

8

3

5-8

104

100

J7MN-3P-8

10

4

6-10

130

50

J7MN-3P-10

13

5.5

9-13

169

50

J7MN-3P-13

17

7.5

11-17

221

20

J7MN-3P-17

22

7.5

14-22

286

15

J7MN-3P-22

26

11

18-26

338

15

J7MN-3P-26

32

15

22-32

416

15

J7MN-3P-32

0.16

-

0.10-0.16

2.1

100

98 × 45 × 100

J7MN-3R-E16

0.25

0.06

0.16-0.25

3.3

100

J7MN-3R-E25

0.4

0.09

0.25-0.4

5.2

100

J7MN-3R-E4

0.63

0.18

0.4-0.63

8.2

100

J7MN-3R-E63

1

0.25

0.63-1

13

100

J7MN-3R-1

1.6

0.55

1-1.6

20.8

100

J7MN-3R-1E6

2.5

0.75

1.6-2.5

32.5

100

J7MN-3R-2E5

4

1.5

2.5-4

52

100

J7MN-3R-4

6

2.2

4-6

78

100

J7MN-3R-6

8

3

5-8

104

100

J7MN-3R-8

10

4

6-10

130

100

J7MN-3R-10

13

5.5

9-13

169

100

J7MN-3R-13

17

7.5

11-17

221

50

J7MN-3R-17

22

7.5

14-22

286

50

J7MN-3R-22

26

11

18-26

338

50

J7MN-3R-26

32

15

22-32

416

50

J7MN-3R-32

26

12.5

18-26

338

50

140 × 55 × 144

J7MN-6R-26

32

15

22-32

416

50

J7MN-6R-32

40

18.5

28-40

520

50

J7MN-6R-40

50

22

34-50

650

50

J7MN-6R-50

63

30

45-63

819

50

J7MN-6R-63

63

30

45-63

819

50

165 × 70 × 171

J7MN-9R-63

75

37

55-75

975

50

J7MN-9R-75

90

45

70-90

1170

50

J7MN-9R-90

100

-

80-100

1300

50

J7MN-9R-100

Accessories

Description

Version

For circuit breaker

Order code

Transverse auxiliary contact block

Contact block

1 NO + 1 NC

All

J77MN-11F

2NO

J77MN-20F

2NC

J77MN-02F

Auxiliary contact block for left hand side mounting (max. 2 pc. per circuit breaker)

Contact block (9 mm)

1 NO + 1 NC

All

J77MN-11S

2NO

J77MN-20S

2NC

J77MN-02S

Signalling switch for left hand side mounting (max. 1 pc. per circuit breaker)

Signalling switch (18 mm)

1 NO + 1 NC any tripping condition

J7MN-3P/-3R

J77MN-TA-11S

J7MN-6R/-9R

J77MN-TB-11S

1 NO + 1 NC short circuit tripping condition

All

J77MN-T-11S

Undervoltage releases for right hand side mounting (max 1 pc. per circuit breaker)

 

AC 50 Hz

AC 60 Hz

 

 

Trips the circuit breaker when the voltage is interrupted. Prevents the motor from being restarted accidentally when the voltage is restored, suitable for EMERGENCY STOP according to VDE 0113

24 V

28 V

All

J77MN-U-24

110-127 V

120 V

J77MN-U-110

220-230 V

240-260 V

J77MN-U-230

240 V

277 V

J77MN-U-240

380-400 V

440-460 V

J77MN-U-400

415-440 V

460-480 V

J77MN-U-415

Shunt releases for right hand side mounting (max 1 pc. per circuit breaker)

 

AC 50 Hz

AC 60 Hz

 

 

Trips the circuit breaker when the
release coil is energized

24 V

28 V

All

J77MN-S-24

110-127 V

120 V

J77MN-S-110

220-230 V

240-260 V

J77MN-S-230

240 V

277 V

J77MN-S-240

380-400 V

440-460 V

J77MN-S-400

415-440 V

460-480 V

J77MN-S-415

Terminal block

Terminal block

Up to 600 V according to UL 489 not for transverse auxiliary
contact block

J7MN-3R

J77MN-TB32

J7MN-9R

J77MN-TB100

Insulated 3-Phase Busbar System IP20

Description

Connection type

Version

For Units (MPCB)

Order code

3-phase busbars;
modular spacing = 45 mm

Spade

for 2 units

J7MN-3P; J7MN-3R

J77MN-CPM-3-45-2S

for 3 units

J77MN-CPM-3-45-3S

for 4 units

J77MN-CPM-3-45-4S

for 5 units

J77MN-CPM-3-45-5S

Line side terminal 3-pole,
connection from above;
conductor cross-section solid or stranded 6-25 mm²
with end sleeve 4-16 mm²

Spade

acc. IEC/EN 60947-1, 60947-2, 60947-4-1 and VDE 0660

J7MN-3P; J7MN-3R

J77MN-BTC-63-SE

Line side terminal 3-pole,
connection from above;
conductor cross-section solid or stranded 6-25 mm²
with end sleeve 4-16 mm²

Spade

up to 600 V acc. UL 489

J7MN-3P; J7MN-3R

J77MN-BTC-63-SEV

Shrouds for unused terminals on busbar system

Spade

 

J7MN-3P; J7MN-3R

J77MN-TA-63S

Specifications

Type

J7MN-3P

J7MN-3R

J7MN-6R

J7MN-9R

Number of poles

3

3

3

3

Max. rated current Inmax
(= max. rated operational current Ie)

A

32

32

63

100

Permissible ambient temperature

Storage/transport

-50 to 80°C

Operation

-20 to 60°C

Rated operational voltage Ue

V

690

Rated frequency

Hz

50/60

Rated insulation voltage Ui

V

690

Rated impulse withstand voltage Uimp

kV

6

Utilization category

IEC 60 947-2 (circuit breaker)

A

IEC 60 947-4-1 (motor starter)

AC-3

Class

According to IEC 60 947-4-1

10

Degree of protection

According to IEC 60 529

IP20

IP20

IP20

IP20

Phase failure sensitivity

According to IEC 60 947-4-1

Yes

Explosion protection

According to EC Directive 94191EC

Yes

Isolator characteristics

According to IEC 60 947-3

Yes

Main and EM. STOP switch characteristics

According to IEC 60 204-1 (VDE113)

Yes

Safe isolation between main and auxiliary circuits According to DIN VDE 0106 Part 101

Up to 400 V + 10%

Yes

Up to 415 V + 5%

Yes

Mechanical endurance

Operating cycles

100,000

100,000

50,000

50,000

Electrical endurance

100,000

100,000

25,000

25,000

Max. operating frequency per hour (motor starts)

1/h

25

25

25

25

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