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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
Why does the LCRV5-A soft starter require an external AC contactor?
The LCRV5-A is an external bypass soft starter, meaning it does not have an integrated bypass contactor. It requires an external AC contactor matching the motor's rated current to bypass the thyristor once the motor reaches its rated speed, reducing heat loss.
Q
What are the primary advantages of an external bypass soft starter?
It is generally more cost-effective and offers high flexibility. You can choose different specifications of bypass contactors based on your actual application needs, and it allows one soft starter to control multiple motors.
Q
What are the drawbacks of using this external bypass setup?
The installation and wiring configuration are more complex compared to built-in bypass models. Additionally, the secondary complete equipment cost is higher, and it requires more physical space inside the cabinet.
Q
How many frame sizes are available for the LCRV5-A series?
There are four distinct frame sizes (Frame I, Frame II, Frame III, and Frame IV) to accommodate different current ratings, unit weights, and cabinet space requirements.
Q
What is the required panel cutout size for installation?
The open panel installation size required for the LCRV5-A series control panel is H112mm by W88mm.