VL-ATS-Q7 — Residential / Small-Distribution Automatic Transfer Switch
The THYCQ7 dual power automatic transfer switch is designed for emergency power supply systems. It automatically switches between the main and backup power sources when the main power fails, ensuring continuous and reliable power for residential and small distribution applications.
This series is suitable for AC 50/60Hz systems, with a rated voltage up to AC 400V and a rated current range of 25–100A. Featuring a compact structure, fast switching, and reliable performance, it is ideal for applications where power continuity is critical.
The switch can be operated automatically or manually via the controller and complies with IEC 60947-6-1 and IEC 60947-3 standards.
Key Features
- Compact structure with fast, reliable switching for 10A–100A circuits
- Automatic or manual operation via controller
- Rated conditional short-circuit current 50kA (with RT16-00-63A fuse)
- 2-pole and 4-pole versions, IEC 60947-6-1 and IEC 60947-3 compliant
- Transfer times under 50ms across contact, operating, return and off states
Technical Specifications
| Parameter | Specification |
|---|---|
| Rated current Ie | 10 / 16 / 20 / 25 / 32 / 40 / 50 / 63 / 80 / 100A |
| Insulation voltage Ui | AC 690V |
| Rated voltage Ue | 2P: AC 230V · 4P: AC 400V |
| Grade | PC — able to make and withstand, not to break short-circuit current |
| Use category | AC-33iB |
| Poles / Weight | 2P: 0.68kg · 4P: 0.91kg |
| Mechanical / Electrical life | 5,000 / 2,000 |
| Rated conditional short-circuit current Iq | 50kA (with SCPD fuse RT16-00-63A) |
| Rated impulse withstand voltage | 8kV |
| Control circuit | AC 220V, 50Hz, 85–110% Us |
| Auxiliary circuit | AC 220V / AC 110V, 50/60Hz |
| Contact / operating / return transfer time, off-time | all < 50ms |
| Temperature range | -5°C to +40°C (24h average ≤35°C) |
Applications
Residential and small commercial/industrial distribution boards needing automatic or manual dual-power transfer, per IEC 60947-6-1 & IEC 60947-3.
Downloads
Technical documentation for this product (datasheet, type-test report, CAD drawing) is being finalized and will be published here shortly. Need it sooner? Contact us via the Request a Quote form and our team will send it directly.
Packaging & Logistics
Packaging details, minimum order quantity, lead time and HS code for this product are being finalized and will be published here shortly. Need this information sooner? Contact us via the Request a Quote form.

