JR29 (T)
Model Reference
T25
T45
T370
Application
- JR29(T) 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(B) series A.C. contactors. The product conforms to IEC60947-4-1 stardand.
- Noter: JR29-16(T16) is manually reset, automatic to the other.
Motion Characteristic: Three-phase Balance Motion Time
| No | Times of the setting current | Motion time | Start condition | Ambient temperature | ||
| 1 | 1.05 | >2h | Cold state | 20±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 | ||||
Phase-losing Motion Characteristic
| No | Times of the setting current | Motion time | Start condition | Ambient temperature | |
| Any two phases | Another phase | ||||
| 1 | 1.0 | 0.9 | >2h | Cold state | 20±5oC |
| 2 | 1.15 | 0 | <2h | Heat state(Following the No.1 test) | |
Technical Data
| Type | Setting Range(A) | Applied Contactor |
| JR29-16 (T16) |
0.11~0.16 | B9 B16 |
| 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) | Applied Contactor |
| JR29-25 (T25) |
0.1~0.16 | B25 B30 |
| 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) | Applied Contactor |
| JR29-45 (T45) |
0.28~4 | B37 B45 |
| 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) | Applied Contactor |
| JR29-85 (T85) |
6~10 | B65 B85 |
| 8~14 | ||
| 12~20 | ||
| 17~29 | ||
| 25~40 | ||
| 35~55 | ||
| 45~70 | ||
| 60~100 | ||
| JR29-105 (T105) |
27~42 | B105 |
| 36~52 | ||
| 45~63 | ||
| 57~82 | ||
| 70~105 | ||
| 80~115 | ||
| JR29-170 (T170) |
90~130 | B170 |
| 100~160 | ||
| 140~200 | ||
| JR29-250 (T250) |
100~160 | B250 |
| 160~250 | ||
| 250~400 | ||
| JR29-370 (T370) |
100~160 | B370 |
| 160~250 | ||
| 250~400 | ||
| 310~500 |
Dimensioned
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