Description
1.Application
JR28 Series thermal overload relays (hereinafter abbreviated as thermal relays) are suitable for overload and phase loss protection for uninterrupted or intermittent AC motors with AC frequency of 50 Hz/60 Hz, a voltage up to 690 V, and a current of (0.1-630)A.
The thermal relays also provide temperature compensation, action indication, automatic and manual reset, stop, and testing functions. The products are characterized by stable and reliable performance. The thermal relays can be plugged into contactors or installed indepe-ndently.Compliant standards: IEC/EN 60947-4-1, IEC/EN 60947-5-1.
2. 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 |
3. Phase-losing Motion Characteristic| No | Times of the setting current | Motion time | Start condition | Ambienttemperature |
| 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) |
4. Specification| Type | Number | Setting range (A) | For contactor |
| JR28-25 | 1301 | 0.1~0.16 | CJX2-09~32 |
| 1302 | 0.16~0.25 | CJX2-09~32 |
| 1303 | 0.25~0.4 | CJX2-09~32 |
| 1304 | 0.4~0.63 | CJX2-09~32 |
| 1305 | 0.63~1 | CJX2-09~32 |
| 1306 | 1~1.6 | CJX2-09~32 |
| 1307 | 1.6~2.5 | CJX2-09~32 |
| 1308 | 2.5~4 | CJX2-09~32 |
| 1310 | 4~6 | CJX2-09~32 |
| 1312 | 5.5~8 | CJX2-09~32 |
| 1314 | 7~10 | CJX2-09~32 |
| 1316 | 9~13 | CJX2-09~32 |
| 1321 | 12~18 | CJX2-09~32 |
| 1322 | 17~25 | CJX2-32 |
| JR28-36 | 2353 | 23~32 | CJX2-09~32 |
| 2355 | 30~40 | CJX2-09~32 |
| JR28-93 | 3322 | 17~25 | CJX2-09~32 |
| 3353 | 23~32 | CJX2-09~32 |
| 3355 | 30~40 | CJX2-09~40 |
| 3357 | 37~50 | CJX2-09~50 |
| 3359 | 48~65 | CJX2-09~65 |
| 3361 | 55~70 | CJX2-09~70 |
| 3363 | 63~80 | CJX2-09~80 |
| 3365 | 80~93 | CJX2-95 |
| JR28-150 | 4365 | 80~104 | CJX2-95 |
| 4367 | 95~120 | CJX2-95~115 |
| 4369 | 110~140 | CJX2-115 |
| Type | Number | Setting range (A) | For contactor |
| JR28-150 | 5369 | 90~150 | CJX2-150 |
| JR28-200 | F5357 | 30~50 | CJX2-F115~F185 |
| F5363 | 48~80 | CJX2-F115~F185 |
| F5367 | 60~100 | CJX2-F115~F185 |
| F5369 | 90~150 | CJX2-F115~F185 |
| JR28-630 | F5371 | 132~220 | CJX2-F225~F265 |
| F7375 | 200~330 | CJX2-F225~F500 |
| F7379 | 300~500 | CJX2-F225~F500 |
| F7381 | 380~630 | CJX2-F400~F630 |
Complaint
