Load Break Switch with Arc Quenching Chamber (ELBI-SP)
TECHNICAL INFORMATION
Rated Voltage (Ur)
12kV - 36kV
Rated Current (Ir)
400 / 630A
Rated Frequency (fr)
50 / 60 Hz
Rated Short-time Withstand Current (1s)
Up to 25kA
Rated Short-Circuit Making Current
Up to 16kA
Load-Breaking Device
Arc-Quenching Chamber
Rated Mainly Active Load-Breaking Current
Up to 630A
Mechanical Endurance
Up to 10.000 O-C cycles
Insulator Type
Porcelain, Epoxy Resin or Silicone Rubber
Drive Type
Manual Drive
Key Specifications
- Designed for isolating and sectionalizing portions of the MV distribution grids for maintenance, fault isolation or load management, with load breaking feature.
- Manufactured in accordance with IEC 62271-1, 62271-102 and IEC 62271-103.
- Engineered for reliable operation in harsh outdoor environments, including extreme temperatures, high humidity, heavy pollution, and high altitudes.
- Equipped with fast open-close mechanism.
- The arc-quenching chamber operates on the gas generation principle and is completely oil-free, requiring no maintenance. Its internal mechanism is constructed from non-ferrous components to ensure long-term durability in harsh environments.
- The main frame and shafts are constructed from hot-dip galvanized steel, offering superior corrosion resistance and durability.
- Equipped with porcelain, epoxy resin or silicone rubber insulators featuring minimum creepage distances of 20 mm/kV, in compliance with IEC 60815 pollution class requirements.
- Fixed and moving contacts are machined from electrolytic copper, silver- or nickel-plated, to maintain low and stable contact resistance throughout the service life.
- Suitable for installation and operation in both horizontal and vertical mounting orientations.
- Custom configurations available on request.