J7TKN-B-18 Omron, J7TKN-B-18 Datasheet - Page 102

• Manufacturer Part Number: J7TKN-B-18
• Description: RELAY THERMAL OVERLOAD 13-18A
• Manufacturer: Omron

Specifications of J7TKN-B-18

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: J7TKNB18

Minimum fuse size for protection of 3-phase motors
The maximum size is determined by the requirements of the switchgear or overload relay.
The rated motor currents are for standard 1500 r.p.m. 3-phase enclosed ventilated and totally enclosed fan-cooled motors.
D.O.L. starting:
Y/D starting:
Rated fuse currents for Y/D starting are also valid for 3-phase motors with slip-ring motors.
For higher rated currents, starting currents and/or longer starting times, larger fuses are required.
Table is valid for “slow” and/or “gL” fuses (DIN VDE 0636).
For NH fuses with aM characteristics, fuses = rated current is selected.
H-102
Motor rating
kW
110.0
132.0
160.0
200.0
250.0
315.0
400.0
450.0
500.0
560.0
630.0
11.0
15.0
18.5
22.0
30.0
37.0
45.0
55.0
75.0
90.0
0.06
0.09
0.12
0.18
0.25
0.37
0.55
0.75
1.1
1.5
2.2
3.0
4.0
5.5
7.5
cos ϕ
0.7
0.7
0.7
0.7
0.7
0.72
0.75
0.79
0.81
0.81
0.81
0.82
0.82
0.82
0.82
0.84
0.84
0.84
0.84
0.85
0.86
0.86
0.86
0.86
0.86
0.86
0.87
0.87
0.87
0.87
0.87
0.88
0.88
0.88
0.88
0.88
Appendix
Maximum starting current 6 x rated motor current. Maximum starting time 5 s.
Maximum starting current 2 x rated motor current. Maximum starting time 15 s.
Set overload relay in the phase lead to 0.58 x rated motor current.
η %
58
60
60
62
62
66
69
74
74
74
78
80
83
86
87
87
88
88
92
92
92
93
93
94
94
94
95
95
95
95
96
96
96
97
97
97
500 V
Rated
motor
current
A
107.0
129.0
157.0
184.0
224.0
279.0
349.0
436.0
547.0
615.0
12.1
17.4
23.4
28.9
33.0
44.0
54.0
65.0
79.0
0.17
0.25
0.33
0.48
0.70
0.90
1.20
1.50
2.1
2.9
4.0
5.3
6.8
9.0
-
-
-
Fuse
starting
D.O.L.
A
100.0
125.0
160.0
200.0
200.0
250.0
250.0
315.0
400.0
500.0
630.0
800.0
800.0
10.0
16.0
16.0
20.0
25.0
32.0
50.0
50.0
63.0
80.0
2.0
2.0
2.0
2.0
2.0
2.0
4.0
4.0
6.0
6.0
-
-
-
Y/∆
A
125
160
160
200
250
315
400
500
630
630
10
16
16
20
25
32
32
50
63
80
80
2
2
2
4
4
4
6
-
-
-
-
-
-
-
-
600 V
Rated
motor
current
A
114.0
134.0
162.0
202.0
253.0
316.0
396.0
446.0
491.0
550.0
618.0
12.6
17.0
20.9
23.8
32.0
39.0
47.0
58.0
78.0
93.0
0.12
0.18
0.24
0.35
0.50
0.70
0.90
1.10
1.5
2.1
2.9
3.8
4.9
6.5
8.8
Fuse
starting
D.O.L.
A
100.0
160.0
160.0
200.0
250.0
250.0
315.0
400.0
500.0
630.0
630.0
630.0
800.0
800.0
10.0
10.0
16.0
16.0
20.0
25.0
32.0
32.0
50.0
63.0
80.0
80.0
2.0
2.0
2.0
2.0
2.0
2.0
4.0
4.0
4.0
6.0
Y/∆
A
100
100
125
160
200
250
315
400
400
630
630
630
630
10
10
16
20
25
25
32
50
63
63
2
2
2
4
4
4
6
-
-
-
-
-
-