Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
VNA-L-10/630 Russian Load Break Switch: 10kV 630A indoor LBS with fuse, 20kA short-circuit, 2000 cycles, spring drive, visible break, Russian standard, -45°C to +40°C.
Advanced VNA-L Russian Load Break Switch Series: Premium ВНА-Л-10/630-20зп У2 load break switch designed for switching ON/OFF under load in three-phase AC circuits 50-60Hz, rated voltage 6(10)kV, featuring visible break isolation and earthing capability for disconnected sections using earthing switches, delivering 630A rated current with 20kA short-circuit capacity, arc extinguishing by gas flow released from arc-quenching chamber walls, controlled by separate mechanical spring drive using potential energy stored in manually wound spring, providing 10 switching operations at rated current (predominantly active load) or 20 operations at 5% load without revision or parts replacement, capable of two-time rated making current on short-circuit without damage.
Russian Standard Switchgear Ready: ВНА-Л-10/630 incorporates zinc-plated and powder-coated steel parts for 25-year service life, 2000 mechanical operations before overhaul, installed in complete switchgear cabinets and packaged transformer substations, suitable for -45°C to +40°C industrial atmosphere (Type П), altitudes ≤1000m, vertical installation (±5° tolerance), providing reliable Russian-standard load break switching solution for 10kV three-phase AC distribution networks.
| VNA-L-10/630 Russian Load Break Switch Specifications | Value | Unit |
|---|---|---|
| Model Number (Russian) | ВНА-Л-10/630-20зп У2 | – |
| Model Number (Latin) | VNA-L-10/630-20zp U2 | – |
| Brand | Bepto Insulation Systems | – |
| Product Type | Russian Indoor Load Break Switch with Fuse Combination | – |
| Standard | Russian Standard (GOST) | – |
| Operating Mechanism | Spring Drive (Manually Wound) | – |
| Rated Voltage | 6(10) | kV |
| Rated Frequency | 50-60 | Hz |
| Rated Current | 630 | A |
| Short-Circuit Capacity | 20 | kA |
| Rated Making Current on Short-Circuit | 2 times (without damage) | – |
| Switching Operations (Rated Current) | 10 (predominantly active load) | times |
| Switching Operations (5% Load) | 20 (predominantly active current) | times |
| Mechanical Operations Before Overhaul | 2000 | cycles |
| Service Life | 25 | years |
| Arc Extinguishing Method | Gas Flow from Arc-Quenching Chamber Walls | – |
| Visible Break | Yes | – |
| Earthing Switch | Integrated | – |
| Steel Parts Treatment | Zinc-Plated and Powder-Coated | – |
| Ambient Temperature | -45 to +40 | °C |
| Altitude | ≤1000 | m |
| Relative Humidity | 75% at 15°C, 100% at 25°C | – |
| Atmosphere Type | Industrial Atmosphere Type П | – |
| Installation Position | Vertical (±5° tolerance) | – |
| Application | Complete Switchgear Cabinets, Packaged Transformer Substations, 10kV Three-Phase AC Distribution Networks | – |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
