Thermal Overload Relay J7TKN OMRON
Thermal Overload Relay J7TKN OMRON
Ngan Anh Phat Co., Ltd specializes in providing genuine products Thermal Overload Relay J7TKN OMRON from the manufacturer Omron, originating from Japan, to the Vietnamese market.
Outstanding features of the Thermal Overload Relay J7TKN OMRON
Thermal Overload Relay
• Direct and separate mounting
• Single phasing sensivity according to IEC 947-4-1
• Finger proof (VBG 4)
Accessories
• Busbar sets
• Set for single mounting
Specifications
Relays With Standard Tripping Characteristic
| Setting Range A |
Tripping time depending on the multiple of the current setting from cold condition (tolerance ±20% of the tripping time) |
|||||
|---|---|---|---|---|---|---|
| IA/IN 3 |
IA/IN 4 |
IA/IN 5 |
IA/IN 6 |
IA/IN 7,2 |
IA/IN 8 |
|
| J7TKN-A-... | s | s | s | s | s | s |
| 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 | 18,7 | 11,2 | 8 | 6 | 4,9 | 4,1 |
| 0,6 - 0,9 | 19,7 | 11,6 | 8,1 | 6,1 | 4,9 | 4,2 |
| 0,8 - 1,2 | 22,9 | 13,6 | 10 | 7,3 | 6 | 5,2 |
| 1,2 - 1,8 | 22,2 | 13,2 | 9,2 | 7,6 | 5,8 | 5,3 |
| 1,8 - 2,7 | 23 | 13,7 | 9,3 | 7,6 | 5,7 | 5,1 |
| 2,7 - 4 | 24 | 14,4 | 9,9 | 7,8 | 5,9 | 5,1 |
| 4 - 6 | 24,7 | 13,8 | 9,9 | 7,3 | 5,6 | 4,8 |
| 6 - 9 | 22 | 13,4 | 8 | 5,7 | 4,1 | 3,5 |
| 8 - 11 | 17,4 | 9,2 | 5,9 | 4,1 | 2,9 | 2,3 |
| 10 - 14 | 26,4 | 12,9 | 7,6 | 5,2 | 3,5 | 2,8 |
| 13 - 18 | 14,7 | 7,7 | 4,8 | 3,2 | 2,3 | 1,7 |
| 17 - 23 | 16,2 | 8,4 | 5 | 3,6 | 2,4 | 1,8 |
| 22 - 30 | 16,8 | 8,5 | 5 | 3,6 | 2,3 | 1,9 |
| J7TKN-C-42 | s | s | s | s | s | s |
| 28 - 42 | 25,2 | 13,3 | 8 | 5,5 | 4 | 3,1 |
| J7TKN-D-... | s | s | s | s | s | s |
| 40 - 52 | 18,3 | 9,2 | 5,6 | 3,9 | 2,8 | 2,2 |
| 52 - 65 | 17,8 | 8,7 | 5,2 | 3,4 | 2,5 | 1,9 |
| 60 - 74 | 19,5 | 13,5 | 11 | 10 | 9,5 | 8,5 |
| J7TKN-E-... | s | s | s | s | s | s |
| 60 - 90 | 19,5 | 13,5 | 11 | 10 | 9,5 | 8,5 |
| 80 - 120 | 18 | 11 | 10 | 9 | 8,5 | 8 |
| J7TKN-F-... | s | s | s | s | s | s |
| 100 - 150 | 34 | 26 | 24 | 20,5 | 19 | 18 |
| 140 - 210 | 30 | 24 | 21 | 18,5 | 17 | 16 |
When selecting a standard overload, refer to the tripping curve.
Determine the values of the starting current ratio IA/IN and the time tE which is marked on the label of the motor. The overload must trip within the tE time, which means that the tripping curve from cold condition must be (20% due to tolerance) below the coordination point IA/ IN and the time tE.
IA= Starting current of motor
IN = Rated current of motor
tE = tE-time of motor
All tripping times of overload relays J7TKN-A are shorter than the minimum values of the tE time for motors of protection degree EEx e acc. to EN 50019 and therefore are suitable for all motors of protection degree EEx e. For these overload relays the selection on basis of tripping curves is thereby not necessary.
Labels of tripping curves for each setting range, sized 148 x 105mm (self-adhesive) are available on request.
Specify type and setting range.
Fuses for J7TKN-A; J7TKN-B; J7TKN-C; J7TKN-D; J7TKN-E; J7TKN-F Type Setting Range Max. Fuse Size According
| Type | Setting Range | Max. Fuse Size According to Coordination-type | Fuse UL A |
||||
|---|---|---|---|---|---|---|---|
| DOL A |
Star Delta A |
"2" *1 quick A |
slow, gL(gG) A |
"1" *1 slow, gL(gG) A |
aM A |
||
| J7TKN-A J7TKN-B |
0.12 - 0.18 | - | 0.5 *2 | 0.5 *2 | 25 | - | 15 |
| 0.18 - 0.27 | - | 1.0 *2 | 1.0 *2 | 25 | - | 15 | |
| 0.27 - 0.4 | - | 2 | 2 | 25 | - | 15 | |
| 0.4 - 0.6 | - | 2 | 2 | 25 | - | 15 | |
| 0.6 - 0.9 | - | 4 | 4 | 25 | - | 15 | |
| 0.8 - 1.2 | - | 4 | 4 | 25 | 2 | 15 | |
| 1.2 - 1.8 | - | 6 | 6 | 25 | 2 | 15 | |
| 1.8 - 2.7 | - | 10 | 10 | 25 | 4 | 15 | |
| 2.7 - 4 | - | 16 | 10 | 25 | 4 | 15 | |
| 4 - 6 | 7 - 10.5 | 20 | 16 | 25 | 6 | 15 | |
| 6 - 9 | 10.5 - 15.5 | 35 | 25 | 35 | 10 | 25 | |
| 8 - 11 | 14 - 19 | 35 | 25 | 35 | 16 | 30 | |
| 10 - 14 | 18 - 24 | 50 | 35 | 63 | 16 | 40 | |
| 13 - 18 | 23 - 31 | 50 | 35 | 63 | 20 | 50 | |
| 17 - (23)24 | 30 - (40)41 | 63 | 50 | 63 | 25 | 60 | |
| (22)23 - (30)32 | (38)40 - (52)55 | 80 | 63 | 80 | 35 | 70 | |
| J7TKN-C | 28 - 42 | 48 - 73 | 100 | 80 | 150 | 50 | 110 |
| J7TKN-D | 40 - 52 | 70 - 90 | 160 | 100 | 150 | 63 | 200 |
| 52 - 65 | 90 - 112 | 160 | 125 | 150 | 80 | 250 | |
| 60 - 74 | 104 - 128 | 160 | 125 | 150 | 80 | 250 | |
| J7TKN-E J7TKN-F |
60 - 90 | 104 - 156 | For short circuit protecting overload relays with current transformer use fuse according to the 7contactor of the combination. |
300 | |||
| 80 - 120 | 140 - 207 | - | |||||
| all ranges | - | ||||||
*1. Coordination-type according to IEC 947-4-1:
„2“: Light contact welding accepted. Thermal overload relay must not be damaged.
„1“: Welding of contactor and damage of the thermal overload relay allowed.
*2. Miniature fuse
Thermal Overload Relays
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 Ui *1 | 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 | 10 A | 10 A | 10 A | 10 A | 20 | 20 | |||
| Cable cross- section |
main con- nector |
solid or stranded |
mm2 | 0.75-6 + 0.75-2.5 *2 |
0.75-6 | 0,75-10 | 4-35 *2 | *3 | *4 |
| 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 con- nector |
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 Ui *1 |
same potential | V~ | 690 | 690 | 690 | 690 | |||
| different potential | V~ | 440 | 440 | 250 | 440 | ||||
| Utilization category AC15 |
Rated opera- tional current Ie |
24V | A | 5 | 3 | 4 *5 | 5 | ||
| 230V | A | 3 | 2 | 2.5 | 3 | ||||
| 400V | A | 2 | 1 | 1.5 | 2 | ||||
| 690V | A | 0.6 | 0.5 | 0.6 | 0.6 | ||||
| Utilization category DC13 |
Rated opera- tional current Ie |
24V | A | 1.2 | 1 | 1.2 | 1.2 | ||
| 110V | A | 0.15 | 0.15 | 0.15 | 0.15 | ||||
| 220V | A | 0.1 | 0.1 | 0.1 | 0.1 | ||||
| Short circuit protection (without welding 1kA) |
highest fuse rating |
gL (gG) | A | 6 | 4 | 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 | - | ||
*1. Suitable for: earthed-neutral systems, overvoltage category I to III, pollution degree 3 (standard-industry: Uimp =
4 kV (at 440 V), 6 kV (at 690 V).
Data for other conditions on request.
*2. Maximum cable cross-section with prepared conductor
*3. Without terminals, suitable for bushing one connector 70 mm2 (stranded) per phase
*4. Busbar sets see accessories Catalog.
*5. Switching capacity of the start contact: AC 15 300 VA, max. 1.5 A, DC 13 (max. 220 V) 30 W, max. 1.5 A
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 | ||||||
| same potential | V AC | 600 | 600 | 600 | 600 | 600 | |
| different potential | V~ | 150 | 150 | 150 | 150 | 150 | |
| Switching capacity | AC | VA | 500 | 500 | 600 | 600 | 600 |
| of aux. contacts | A | 4 | 2 | 4 | 4 | 4 | |
Temperature Compensation
In case of higher ambient temperature use the following formula:
(Ambient temperature - 20) x 0.125 = correction factor in % of the full load motor current
Example:
Ambient temperature 70°C, full load motor current 7 A
(70 - 20) x 0.125 = 6.25%
Setting value: 7 A + 6,25% = 7.44 A
- D3, Dong Khoi, Group 23, Quarter 35, Tam Hiep Ward, Dong Nai Province, Vietnam
- (+84) 2513 857 563
- info@ngananhphat.com, sales@ngananhphat.com
- www.ngananhphat.com
Giấy phép đăng ký kinh doanh số : 3600955737 do Sở Kế Hoạch & Đầu Tư Tỉnh Đồng Nai cấp ngày 19/11/2007.