VOLTALUME VL-LBS-G1 Series Load Break Switch — Full-range isolation from light industrial to heavy-duty power distribution.
The VOLTALUME VL-LBS-G1 covers one of the widest current ranges in our switching portfolio — 63A to 3200A — for industrial and enterprise power distribution equipment. Rated up to AC 660V (440V DC), it is built for infrequent making/breaking of circuits and reliable electrical isolation, to IEC 60947-3 and GB/T 14048.3, across construction, power, and petrochemical sectors.
Key Features
- Full 12-step current range: 63A to 3200A in one series
- Rated insulation voltage up to 1000V, impulse withstand up to 12kV
- Use categories AC-21/22/23 for general, capacitive, and motor-load switching
- Rated short-circuit making capacity up to 70kA, withstand up to 50kA
- Mechanical life up to 10,000 operations
Technical Specifications
| Parameter | 63–250A | 400–630A | 1000–3200A |
|---|---|---|---|
| Rated insulation voltage Ui | 750V | 750–1000V | 1000V |
| Rated impulse withstand voltage Uimp | 6–8kV | 8kV | 12kV |
| Rated operational voltage Ue | AC 400/600V | AC 400/600V | AC 400/600V |
| Rated frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Use category | AC-21/22/23 | AC-21/22/23 | AC-21/22/23 |
| Rated short-circuit making capacity Icm | 10–17kA | 24–40kA | 70kA |
| Rated short-time withstand current Icw | 3–10kA | 12–20kA | 50kA |
| Mechanical life | 10,000 | 5,500 | 3,000–4,000 |
| Electrical life | 1,000 | 600 | up to 300 |
| Operating torque | 3.5–10 N·m | 15 N·m | 27–60 N·m |
Applications
Industrial and enterprise power distribution equipment, construction/power/petrochemical automation systems, general-purpose isolation across the full current spectrum.
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.

