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60

Thermal Overload Relay 

J7TKN

Tripping Characteristics for J7TKN-E

Detailed tripping times for each range see table page 58

Tripping Characteristics for J7TKN-F

Detailed tripping times for each range see table page 58

with three-phase load

with two-pole load

Tripping time
min.   s

F.L.C. multiplication factor

Average value of 
typical tolerance 
curves from cold 
condition

Proceeding from 
service conditions 
the times decrease 
to 20-30% of the 
characteristic values

Tripping time
min.   s

K

Typical tolerance 
curve from cold 
condition

Proceeding from 
service conditions 
the times decrease 
to 70-80% of the 
characteristic values

K

=  I

max

/I

e

I

max

= max. phase current

I

e

= max. scale value

with three-phase load

with two-pole load

Tripping time
min.   s

F.L.C. multiplication factor

Average value of 
typical tolerance 
curves from cold 
condition

Proceeding from 
service conditions 
the times decrease 
to 20-30% of the 
characteristic values

Tripping time
min.   s

K

Typical tolerance 
curve from cold 
condition

Proceeding from 
service conditions 
the times decrease 
to 70-80% of the 
characteristic values

K

=  I

max

/I

e

I

max

= max. phase current

I

e

= max. scale value

Summary of Contents for J7TKN -

Page 1: ...contactor 45 55 kW F for motor contactor 75 110 kW 3 Setting range 2 Accessories for Thermal Overload Relay 1 Accessories for Thermal Overload Relay 2 SM Single mounting for J7TKN B Types 4 32 kW SU B...

Page 2: ...A 14 1 0 10 For contactors J7KN 10 to J7KN 40 0 12 0 18 manual and auto reset J7TKN B E18 1 0 14 0 18 0 27 J7TKN B E27 1 0 14 0 27 0 4 J7TKN B E4 1 0 14 0 4 0 6 J7TKN B E6 1 0 14 0 6 0 9 J7TKN B E9 1...

Page 3: ...t J7TKN F 150 1 1 5 140 220 240 380 J7TKN F 210 1 1 5 busbar sets see accessories Type Pack Weight for overload relays for contactors pcs kg pc Busbar Sets J7TKN F 150 J7KN 151 J7KN 176 J74TK SU 176 1...

Page 4: ...20 of the tripping time IA IN IA IN IA IN IA IN IA IN IA IN A A 3 4 5 6 7 2 8 J7TKN A 0 12 0 18 18 5 10 4 7 2 5 5 4 3 3 6 0 18 0 27 16 7 9 8 6 5 5 4 1 3 5 0 27 0 4 19 4 12 1 8 2 5 9 4 9 4 2 0 4 0 6 1...

Page 5: ...16 10 25 4 15 5 4 6 7 10 5 20 16 25 6 15 5 6 9 10 5 15 5 35 25 35 10 25 5 8 11 14 19 35 25 35 16 30 5 10 14 18 24 50 35 63 16 40 5 13 18 23 31 50 35 63 20 50 5 17 24 30 41 63 50 63 25 60 5 23 32 40 5...

Page 6: ...Tripping time min s K Typical tolerance curve from cold condition Proceeding from service conditions the times decrease to 70 80 of the characteristic values K Imax Ie Imax max phase current Ie max sc...

Page 7: ...ge 57 flexible mm 0 75 4 0 5 2 5 2 1 4 0 75 6 6 25 2 flexible with multicore cable end mm 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 mm 0 75 2 5 2 f...

Page 8: ...5 7 44A Dimensions Data according to CULUS Type J7TKN A J7TKN B J7TKN C J7TKN D J7TKN E Rated insulation voltage V 600 600 600 600 600 Rated current A 23 32 42 74 85 Auxiliary contacts Rated voltage s...

Page 9: ...J7KN 24 J7TKN C J7KN 32 J7KN 40 J7KNG 40 J7TKN C J7KN 50 J7TKN D J7KN 62 J7KN 74 J7KN 85 J7TKN E J7KN 110 J7KN 151 J7TKN F J7KN 176 45 35 80 M5 4 5 3 12 M3 5 M3 5 149 108 64 5 6 5 86 104 55 34 104 86...

Page 10: ...ications are subject to change without notice ALL DIMENSIONS SHOWN ARE IN MILLIMETERS Cat No J07E EN 01A Do not use install these products before having read the applicable precautions as listed in Ca...

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