Relay>>JRS5 Series Thermal Relay
1.Application
JRS5 thermal relay is suitable for overload protection of AC motor operated on 8-houres dutyor uninterupted duty. The overload protected AC motor with frequency 50Hz, voltage up to660V, current up to 105A. Several functions provided by these relays are: phase-failure protection,temperature compensation, ON/OFF indication and manual/automatic reset. The product con-forms to IEC60947-4-1 stardand.
2. Motion Characteristic: Three-phase Balance Motion Time
No |
Times of thesetting current |
Motion time |
Start condition |
Ambienttemperature |
||
1 |
1.05 |
>2h |
Cold state |
20±5˚C |
||
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 of the setting current |
Motiontime |
Start condition |
Ambient temperature |
|
Any two phases |
Another phase |
||||
1 |
1.0 |
0.9 |
>2h |
Cold state |
20±5˚C |
2 |
1.15 |
0 |
< 2h |
Heat state(Following the No.1 test) |
|
4. Specification
Type |
Setting range(A) |
Forcontactor |
JRS5-12/Z |
0.2~0.28 |
S-K10 S-K11 S-K12 S-K18 S-K20 S-K21 |
0.4~0.6 |
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0.55~0.85 |
||
0.7~1.1 |
||
1~1.6 |
||
1.4~2 |
||
1.7~2.5 |
||
2~3 |
||
2.8~4.4 |
||
4~6 |
||
5.2~8 |
||
7~11 |
||
9~13 |
||
JRS5-20/F |
0.2~0.28 |
S-K18 S-K20 S-K21 S-K25 S-K35 |
0.28~0.42 |
||
0.4~0.6 |
||
0.55~0.85 |
||
0.7~1.1 |
||
1~1.6 |
||
1.4~2 |
||
1.7~2.5 |
||
JRS5-20/F |
2~3 |
S-K18 S-K20 S-K21 S-K25 S-K35 |
2.8~4.4 |
||
4~6 |
||
5.2~8 |
||
7~11 |
||
9~13 |
||
12~18 |
||
16~22 |
||
18~26 |
||
24~34 |
||
30~40 |
||
JRS5-60/F |
12~18 |
S-K50 S-K65 S-K80 S-K95 |
16~22 |
||
18~26 |
||
24~34 |
||
30~40 |
||
34~50 |
||
43~65 |
||
54~80 |
||
65~93 |
||
85~105 |