VOLTALUME VL-MCCB-M1L Series Residual Current MCCB — Combined overload, short-circuit, and leakage protection for power distribution networks.
The VOLTALUME VL-MCCB-M1L is mainly suitable for power distribution networks at AC 50/60Hz, rated voltage 400V, with rated current up to 800A. It provides indirect-contact protection for personnel and helps prevent fire hazards caused by equipment insulation damage and ground fault current, while also distributing electrical energy and protecting circuits against overloads and short circuits. The rated residual operating current and maximum disconnection time are field-adjustable, the leakage protection module remains functional even when phase voltage drops to 50V, and the unit supports leakage alarm output.
Key Features
- Integrated overload, short-circuit, and residual-current (leakage) protection
- Field-adjustable rated residual operating current and disconnection time
- Functions down to 50V phase voltage; leakage alarm output supported
- Three breaking-capacity tiers per frame: L, M, H
- IEC 60947-2 / GB/T 14048.2 compliant
Technical Specifications
| Parameter | 125A frame | 250A frame | 400A frame | 630–800A frame |
|---|---|---|---|---|
| Rated current range | 10–125A | 125–250A | 225–400A | 400–800A |
| Poles | 2/3/4 | 2/3/4 | 3/4 | 3/4 |
| Rated insulation voltage Ui | 800V | 800V | 800V | 800V |
| Rated working voltage | 400V | 400V | 400V | 400V |
| Rated impulse withstand voltage | 8000V | 8000V | 8000V | 8000V |
| Ultimate breaking capacity Icu (L/M/H, 400V) | 35/50/85kA | 35/50/85kA | 50/65/100kA | 50/65/100kA |
| Operating breaking capacity Ics (400V) | 26/35/50kA | 26/35/50kA | 35/50/65kA | 35/50/65kA |
| Rated residual operating current I△n | 30/100/300/500mA* | 30/100/300/500mA* | 30/100/300/500mA* | 30/100/300/500mA* |
| Operational performance (total) | up to 10,000 | up to 8,000 | up to 5,000 | up to 5,000 |
Applications
Power distribution networks requiring combined overload, short-circuit, and leakage/fire protection — commercial and industrial buildings with indirect-contact safety requirements.
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.
