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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 (FAQ)
Q
Why does an external bypass soft starter require an additional AC contactor?
Because it does not have an integrated bypass contactor, it must be configured with an external AC contactor that matches the rated current of the motor to take over once the motor reaches rated speed.
Q
How does the bypass contactor reduce the heat loss of the thyristor?
When the motor reaches the rated speed, the soft starter controls the bypass contactor via a relay to replace the thyristor. This provides full voltage for the normal operation of the motor and stops the thyristor from generating heat.
Q
What are the advantages of using an external bypass soft starter?
It is relatively cheaper, allows you to flexibly choose different specifications of the bypass contactor based on actual needs, and can realize the operation of multiple motors controlled by a single bypass soft starter.
Q
What are the limitations of this type of soft starter?
The installation and wiring are relatively complex, the secondary complete equipment cost is higher, and it requires more space inside the cabinet.
Q
What is the package weight of the LCRV5-A Frame I models?
The package weight for Frame I models (from I-V5-22A to I-V5-75A) ranges between 2.85 kg and 3.5 kg, depending on the specific model.
Q
What are the dimensions and installation size for Frame IV models?
For Frame IV models, the product size is 510*400*275 mm, the installation size is 475*352 mm, and the package size is 630*460*370 mm.