1. Application
JR29 series thermal overload relay is mainly suitable for A.C.electric power system with volt-age up to 660V, current up to 500A, 50/60Hz. It is generally used for the protection of overloadand phase-lacking in circuits with three-phase induce motors and is often made up electromag-netic starters with CJX8 series A.C. contactors. The product conforms to IEC60947-4-1 stardand.Noter: JR29-16 is manually reset automatic to the other.
2. Motion Characteristic: Three-phase Balance Motion Time |
No |
Times the setting current |
Motion time |
Start conidition |
Ambient temperature |
1 |
1.05 |
>2h |
cold state |
20oC±5oC |
2 |
1.2 |
<2h |
heat state (Following the No.1 test) |
3 |
1.5 |
<4min |
4 |
7.2 |
10A |
2s< TP ≤ 10S |
≤ 63A |
cold state |
10 |
4s< TP ≤ 10S |
≤ 63A | |
3. Phase-losing Motion Characteristic |
No |
Times the setting current |
Motion time |
Start condition |
Ambient temperature |
Any two phase |
Another phase |
1 |
1.0 |
0.9 |
>2h |
cold state |
20oC±5oC |
2 |
1.15 |
0 |
<2h |
heat state (Following the No.1 test) | |
4. Specification
Type |
Setting Range(A) |
For Contactor |
JR29-16
|
0.11~0.16 |
CJX8-09 CJX8-16 |
0.14~0.21 |
0.19~0.29 |
0.27~0.4 |
0.35~0.52 |
0.42~0.63 |
0.55~0.83 |
0.7~10. |
0.9~1.3 |
1.1~1.5 |
1.3~1.8 |
1.5~2.1 |
1.7~2.4 |
2.1~3 |
2.7~4 |
3.4~4.5 |
4~6 |
5.2~7.5 |
6.3~9 |
7.5~11 |
9~13 |
12~17.6 | |
|
Type |
Setting Range(A) |
For Contactor |
JR29-25
|
0.1~0.16 |
CJX8-25 CJX8-30 |
0.16~0.25 |
0.25~0.4 |
0.4~0.63 |
0.63~1 |
1~1.4 |
1.3~1.8 |
1.7~2.4 |
2.2~3.1 |
2.8~4 |
3.5~5 |
4.5~6.5 |
6~8.5 |
7.5~11 |
10~14 |
13~19 |
18~25 |
24~32 |
- |
- |
- |
- | |
|
|
|
Type |
Setting Range(A) |
For Contactor |
JR29-45 |
0.28~4 |
CJX8-37 CJX8-45 |
0.35~0.52 |
0.45~0.63 |
0.55~0.83 |
0.7~1 |
0.86~1.3 |
1.1~1.6 |
1.4~2.1 |
1.8~2.5 |
2.2~3.3 |
2.8~4 |
3.2~5.2 |
4.5~6.3 |
5.5~8.3 |
7~10 |
8.6~13 |
11~16 |
14~21 |
18~27 |
25~35 |
30~45 |
- |
- |
- | |
|
Type |
Setting Range(A) |
For Contactor |
JR29-85
|
6~10 |
CJX8-65 CJX8-85 |
8~14 |
12~20 |
17~29 |
25~40 |
35~55 |
45~70 |
60~100 |
JR29-105
|
27~42 |
CJX8-105 |
36~52 |
45~63 |
57~82 |
70~105 |
80~115 |
JR29-170
|
90~130 |
CJX8-170 |
100~160 |
140~200 |
JR29-250
|
100~160 |
CJX8-250 |
160~250 |
250~400 |
JR29-370
|
100~160 |
CJX8-370 |
160~250 |
250~400 |
310~500 | |
5. Outline and Mounting Dimension
|
|
JR29-16 Independent installation
|
|
|
JR29-25 Independent installation
|
|
|
JR29-45 Independent installation
|
|
|
JR29-85 Independent installation
|
|
|
JR29-105 Independent installation | |
|
|
|
JR29-250 Independent installation
|
|
|
6. Accessories |
Pic |
|
|
|
Description |
JR29-16 mounting base |
JR29-25 mounting base |
JR29-75 mounting base |
Application |
Assembled with JR29-16 to form acomplete set |
Assembled with JR29-25 to form acomplete set |
Assembled with JR29-75 to form acomplete set | |