Thermal Overload Relay
J7TKN
61
Position of Terminals
Thermal Overload Relays
J7TKN-A
J7TKN-B
J7TKN-C; J7TKN-D
Data according to IEC 947-4-1, IEC 947-5-1, VDE 0660, EN 60947-4-1, EN 60947-5-1
Type
J7TKN-A
J7TKN-B
J7TKN-C
J7TKN-D
J7TKN-E
J7TKN-F
Rated insulation voltage U
i
*1
*1) Suitable for: earthed-neutral systems, overvoltage category I to III, pollution degree 3 (standard-industry: U
imp
= 4kV (at 440V), 6kV (at 690V).
Data for other conditions on request.
V~
690
690
690
690
750
690
Permissible ambient temperature
operation
open
°C
-25 to +60
storage
°C
-50 to +70
Trip class according to IEC 947-4-1
10A
10A
10A
10A
20
20
Cable cross-section
main connector
solid or stranded
mm² 0.75-6 +
0.75-2.5
*2
*2) Maximum cable cross-section with prepared conductor
0.75-6
0,75-10
4-35
*2
*3
*3) Without terminals, suitable for bushing one connector 70mm² (stranded) per phase
*4
*4) Busbar sets see accessories page 57
flexible
mm² 0.75-4 +
0.5-2.5
*2
1-4
0,75-6
6-25
*2
flexible with multicore cable end
mm² 0.5-2.5 +
0.5-1.5
0.75-4
0.75-6
4-25
Cables per clamp
number
1+1
2
2
1
auxiliary connector
solid
mm²
0.75-2.5
*2
flexible
mm²
0.5-2.5
*2
flexible with multicore cable end
mm²
0.5-1.5
Cables per clamp
number
2
Auxiliary contacts
Rated insulation voltage U
i
*1
same potential
V~
690
690
690
690
690
690
different potential
V~
440
440
250
250
440
440
Utilization category AC15
Rated operational current I
e
24V
A
5
3
4
*5
*5) Switching capacity of the start contact: AC15 300VA, max. 1.5A, DC13 (max. 220V) 30W, max. 1.5A
4
*5
5
5
230V
A
3
2
2.5
2.5
3
3
400V
A
2
1
1.5
1.5
2
2
690V
A
0.6
0.5
0.6
0.6
0.6
0.6
Utilization category DC13
Rated operational current I
e
24V
A
1.2
1
1.2
1.2
1.2
1.2
110V
A
0.15
0.15
0.15
0.15
0.15
0.15
220V
A
0.1
0.1
0.1
0.1
0.1
0.1
Short circuit protection
(without welding 1kA)
highest fuse rating
gL (gG)
A
6
4
6
6
6
6
Setting range
A
to 23
all
28-42
52-65
all
-
Power loss per current path (max.)
minimum setting value
W
1.1
1.1
1.3
2.9
1.1
-
maximum setting value
W
2.3
2.3
3.3
4.5
2.5
-
