Yueqing long road electric co.,Ltd
JR28 Series Thermal Relay
Product Detail:
1.Application
JR28 series thermal relay is suitable for using in the circuit rated voltage up to 660V, ratedcurrent 93A AC 50/ 60Hz, for over-current protection of AC motor. The relay has the differentialmechanism and temperature compensation and can plug in CJX2 series AC contactor. Theproduct conforms to IEC60947-4-1 stardand.
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 | CJX2-09~32 | |
| 3357 | 37~50 | CJX2-09~32 | |
| 3359 | 48~65 | CJX2-09~32 | |
| 3361 | 55~70 | CJX2-09~32 | |
| 3363 | 63~80 | CJX2-09~32 | |
| 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 |
6. Accessories
| Pic |   |
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| Description | JR28-25 mounting base | JR28-36 mounting base | JR28-93 mounting base |
| Application | Assembled with JR28-25 to form a complete set | Assembled with JR28-36 to form a complete set | Assembled with JR28-93 to form a complete set |
