J7TKN

Features

Thermal overload relays for J7 contactors

J7TKN relays protect motors against thermal overload. They can be mounted on the contactor or separately. The relays comply with IEC 947 (single-phase sensitivity).

  • Series of overload relays covering a setting range from 0.24A to 220A
  • All components are finger proof
Specifications & ordering info

Ordering information

Applicable contactors

Setting range

Size in mm (H × W × D)
(incl. standard J7KN[A] contactor)

Order code

D.O.L. (A)

Star-delta (A)

J7KNA-09..., J7KNA-12...

0.12 to 0.18

-

95 × 48.5 × 77

J7TKN-A-E18

0.18 to 0.27

-

J7TKN-A-E27

0.27 to 0.4

-

J7TKN-A-E4

0.4 to 0.6

-

J7TKN-A-E6

0.6 to 0.9

-

J7TKN-A-E9

0.8 to 1.2

-

J7TKN-A-1E2

1.2 to 1.8

-

J7TKN-A-1E8

1.8 to 2.7

-

J7TKN-A-2E7

2.7 to 4

-

J7TKN-A-4

4 to 6

7 to 10.5

J7TKN-A-6

6 to 9

10.5 to 15.5

J7TKN-A-9

8 to 11

14 to 19

J7TKN-A-11

10 to 14

18 to 24

J7TKN-A-14

J7KN-10D... to J7KN-40...

0.12 to 0.18

-

126.5 × 45 × 70 (J7KN-10D to J7KN-22D);
141.5 × 45 × 87.5 (J7KN-24 to J7KN-40)

J7TKN-B-E18

0.18 to 0.27

-

J7TKN-B-E27

0.27 to 0.4

-

J7TKN-B-E4

0.4 to 0.6

-

J7TKN-B-E6

0.6 to 0.9

-

J7TKN-B-E9

0.8 to 1.2

-

J7TKN-B-1E2

1.2 to 1.8

-

J7TKN-B-1E8

1.8 to 2.7

-

J7TKN-B-2E7

2.7 to 4

-

J7TKN-B-4

4 to 6

7 to 10.5

J7TKN-B-6

6 to 9

10.5 to 15.5

J7TKN-B-9

8 to 11

14 to 19

J7TKN-B-11

10 to 14

18 to 24

J7TKN-B-14

13 to 18

23 to 31

J7TKN-B-18

17 to 24

30 to 41

J7TKN-B-24

23 to 32

40 to 55

J7TKN-B-32

J7KN-24... to J7KN-40...

28 to 42

48 to 73

136 × 67 × 96.5

J7TKN-C-42

J7KN-50... to J7KN-74...

40 to 52

70 to 90

180 × 69 × 108

J7TKN-D-52

52 to 65

90 to 112

J7TKN-D-65

60 to 74

104 to 128

J7TKN-D-74

J7KN-90... to J7KN-115...

60 to 90

104 to 156

260 × 107 × 120

J7TKN-E-90

80 to 120

140 to 207

J7TKN-E-120

J7KN-151... to J7KN-176...

120 to 180

208 to 312

290 × 110 × 162

J7TKN-F-180

J7KN-210... to J7KN-316...

144 to 216

250 to 374

362 × 145 × 208

J7TKN-G-216

216 to 320

374 to 554

J7TKN-G-320

J7KN-450... to J7KN-860...

240 to 360

416 to 623

372 × 1246 × 1225 (J7KN-450)

395 × 1246 × 1225 (J7KN-550)

487 × 1280 × 1291 (J7KN-700)

540 × 1280 × 1291 (J7KN-860)

J7TKN-H-360

360 to 540

623 to 935

J7TKN-H-540

540 to 800

935 to 1385

J7TKN-H-800

Accessories

Sets for single mounting

For overload relays

Cable cross-section to clamp (mm 2 )

Order code

Solid or stranded

Flexible

Flexible with multi-core cable

J7TKN-AB

0.75 to 6

0.75 to 4

0.5 to 4

J74TK-M-AB

J7TKN-B

0.75 to 6

0.75 to 4

0.5 to 4

J74TK-SM

Busbar sets for thermal overload relays

For overload relays

For motor contactors

Order code

J7TKN-H-360/540

J7KN-450/550

J74TK-SU-550

J7TKN-H-540/800

J7KN-700/860

J74TK-SU-860

Specifications

Type

J7TKN-A

J7TKN-B

J7TKN-C

J7TKN-D

J7TKN-E

J7TKN-F

J7TKN-G

J7TKN-H

Rated insulation voltage Ui

690 VAC

750 VAC

1000 VAC

Permissible ambient
temperature

Operation

-25 to 60°C

-25 to 55°C

Storage

-50 to 70°C

-40 to 70°C

Trip class according to IEC 947-4-1

10 A

20 A

10 A

Cable cross-section
Main connector

Solid or stranded mm2

0.75 to 6
0.75 to 2.5

0.75 to 6

0.75 to 10

4 to 35

Without terminals, suitable for bushing one connector 70 mm² (stranded) per phase

Busbar

18×4

Screw

M8

Busbar

25×6

Screw

M10

See accessories

Flexible mm2

0.75 to 4
0.5 to 2.5

1 to 4

0.75 to 6

6 to 25

Flexible with multi-core
cable end mm2

0.5 to 2.5
0.5 to 1.5

0.75 to 4

0.75 to 6

4 to 25

Cables per clamp

Number

1 + 1

2

2

1

-

1

1

1

Auxiliary connector

Solid mm2

0.75 to 2.5

1 to 2.5

Flexible mm2

0.5 to 2.5

1 to 2.5

Flexible with multi-core
cable end mm2

0.5 to 1.5

1 to 2.5

Cables per clamp

Number

2

Auxiliary contacts

Rated insulation voltage Ui

same potential

690 VAC

500 VAC

different potential

440 VAC

250 VAC

440 VAC

500 VAC

Rated operational current Ie Utilization category AC15

24 V

5 A

3 A

4 A

5 A

3 A

4 A

230 V

3 A

2 A

2.5 A

2.5 A

3 A

2 A

2.5 A

400 V

2 A

1 A

1.5 A

1.5 A

2 A

1 A

1.5 A

690 V

0.6 A

0.5 A

0.6 A

0.5 A

0.6 A

Rated operational current Ie

Utilization category DC13

24 V

1.2 A

1 A

1.2 A

110 V

0.15 A

220 V

0.1 A

Short circuit protection (without welding 1 kA)

Highest fuse rating gL (gG)

6 A

4 A

6 A

4 A

6 A

Setting range

to 23 A

All

28 to 42 A

52 to 65 A

All

-

-

-

Power loss per current path (max.)

Minimum setting value

1.1 W

1.1 W

1.3 W

2.9 W

1.1 W

-

-

-

Maximum setting value

2.3 W

2.3 W

3.3 W

4.5 W

2.5 W

-

-

-

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