RELF 2S is a modular, retractable switch, encased in metal and air-insulated, intended primary distribution of electricity. Designed for use inside, it is equipped with a double busbar system, ideal for creating complex and modern power systems, used in distribution stations in industry or the energy sector.

The advanced locking system, along with the internal spring-resistant design, provides a high level of operational safety and facilitates maintenance the switch.

RELF 2S is intended for operation under normal conditions, according to the standard (PN-EN) IEC 62271-1.

Main features:

• Isolation: by air (AIS)
• Construction: metal-clad, retractable
• They just: double
• Nominal voltage: 12 kV
• Application: indoor use
• Installation type: primary distribution
• Modularity: allows easy expansion and adaptation to complex requirements

Technical data:

• Nominal voltage: 12 kV
• Rated current (busbar and supply): 630 A / 1250 A / 1600 A / 2000 A / 2500 A
• Power frequency withstand voltage: 28 kV
• Atmospheric impulse withstand voltage: 75 kV
• Nominal frequency: 50 Hz
• Permissible short-circuit current (3 s): 31.5 kA
• Permissible peak current: 80 kA
• Internal arc resistance (1 s): 31.5 kA
• Degree of protection: up to IP4X

Cabinet dimensions:

• Width: 650 mm / 800 mm / 1100 mm (depending on configuration)
• Height: 2700 mm
• Depth: 1800 mm

Compliance with standards:

• (PN-EN) IEC 62271-1 – High-voltage switchgear and controlgear. Common specifications
• (PN-EN) IEC 62271-200 – Metal-enclosed switchgear and controlgear for voltages above 1 kV and up to 52 kV
• (PN-EN) IEC 60529 – Degrees of protection provided by enclosures (IP Code)

The RELF 2S switch is certificate from accredited bodies, which confirms its compliance with the strictest technical and safety requirements.