Product Overview

The RLS-24B is an advanced indoor high-voltage SF6 load switch designed for 12kV/24kV power distribution systems. Utilizing SF6 gas as both an arc-extinguishing and insulation medium, it integrates three contactors (switching-on, switching-off, and grounding) in a compact, easy-to-install design. The RLS-24B and its variant, the RLS-12/24B (load switch + fuse combination), provide reliable protection and control for power supply equipment and substations, making them ideal for ring main units (RMUs), cable branch cabinets, and switching substations.

Compliant with GB3804-1990, IEC60256-1:1997, GB16926, and IEC60420, this switchgear ensures high performance in diverse electrical environments.

Key Features

• SF6 Gas Technology– Superior arc-extinguishing and insulation properties

• Compact & Lightweight– Space-saving design for easy installation

• Triple Contactor System– Switching-on, switching-off, and grounding in one unit

• High Adaptability– Suitable for harsh environments with minimal maintenance

• Fuse Combination Option (RLS-12/24B)– Enhanced protection for transformers and cables

Product Advantages

• Reliable Performance– SF6 ensures stable operation with minimal wear
  
  

• Easy Operation– Simple mechanism reduces maintenance needs
  
  

• Versatile Protection– Fuse-compatible model prevents overload damage
  
  

• Wide Compliance– Meets GB, IEC, and international standards
  
  

• Robust Construction– Resists humidity, altitude (up to 2500m), and mild corrosive conditions

Application Scenarios

• Ring Main Units (RMUs)– Secure switching in urban power grids
  
  

• Cable Branch Cabinets– Reliable power distribution for industrial zones
  
  

• Switching Substations– Safe load control in medium-voltage networks
  
  

• Transformer Protection– Fuse-integrated model prevents fault escalation

Environmental Specifications

• Operating Temperature: -5°C to +40°C

• Humidity Tolerance: Daily avg. 90% / Monthly avg. 95%

• Max. Altitude: 2500m

Technical data

Matching dimension of SF6 load break switch-fuse combination Fig 1) SF6 load break switch without upper cubicle

Outline dimension & installation sizes