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LCRV5-A External Bypass Soft Starter - Reliable Heat Dissipation from China Suppliers and Factory
Product overview
External bypass soft starter itself is not integrated bypass contactor, so it need to configure an additional external AC contactor matching the rated current of motor. When the motor reaches the rated speed, it will through the relay control the running of bypass contactor to replace the thyristor that has completed the startup task, and provide full voltage for the normal operation of the motor to reduce the heat loss of thyristor. This type of bypass soft starter is relatively cheap, but the installation and wiring are relatively complex, secondary complete equipment cost is high, and requires more space in the cabinet. Its advantage is that it can flexibly choose different specifications of bypass contactor according to the actual needs, and can realize the operation of many motors controlled by one bypass soft starter.
Specification of LCRV5-A External Bypass Soft Starter
| No. | Specification | Package weight/kg | Size information/mm |
|---|---|---|---|
| 1 | I-V5-22A | 2.85 |
Frame I Product: 280*145*160 Installation: 240*120 Package: 335*195*220 Carton: 2 or 4pcs/ctn Frame II Product: 410*260*235 Installation: 375*228 Package: 500*275*320 Carton: 1pc/ctn Frame III Product: 460*300*255 Installation: 425*266 Package: 560*340*330 Carton: 1pc/ctn Frame IV Product: 510*400*275 Installation: 475*352 Package: 630*460*370 Carton: 1pc/ctn Open size of panel: H112*W88 |
| 2 | I-V5-30A | 2.85 | |
| 3 | I-V5-37A | 3.4 | |
| 4 | I-V5-45A | 3.4 | |
| 5 | I-V5-55A | 3.4 | |
| 6 | I-V5-75A | 3.5 | |
| 7 | II-V5-90A | 17.15 | |
| 8 | II-V5-115A | 17.3 | |
| 9 | lI-V5-132A | 17.35 | |
| 10 | II-V5-160A | 17.6 | |
| 11 | II-V5-185A | 17.6 | |
| 12 | II-V5-200A | 17.6 | |
| 13 | II-V5-220A | 17.6 | |
| 14 | III-V5-250A | 21 | |
| 15 | III-V5-280A | 21.35 | |
| 16 | III-V5-320A | 21.6 | |
| 17 | III-V5-350A | 21.6 | |
| 18 | IV-V5-400A | 35.4 | |
| 19 | IV-V5-450A | 36 | |
| 20 | IV-V5-500A | 36.5 |
Frequently Asked Questions
Q
Does the external bypass soft starter have an integrated bypass contactor?
No, the external bypass soft starter itself does not integrate a bypass contactor. It requires an additional, external AC contactor configured to match the rated current of the motor.
Q
How does the external bypass contactor work during motor startup?
Once the motor reaches its rated speed, a relay triggers the external bypass contactor to take over from the thyristor. This provides full voltage for normal motor operation and reduces the thyristor's heat loss.
Q
What are the main advantages of this type of soft starter?
The main advantages are its lower purchase price, the flexibility to choose different contactor specifications based on actual needs, and the ability to control multiple motors with a single bypass soft starter.
Q
What are the disadvantages of using an external bypass soft starter?
The installation and wiring are relatively complex, the cost of the secondary complete equipment is higher, and it occupies more space within the cabinet compared to integrated models.
Q
How many frame sizes are available for the LCRV5-A series?
The LCRV5-A series is available in four frame sizes (Frame I, Frame II, Frame III, and Frame IV) covering different current ratings from 22A up to 500A.