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Load Break Switches (LBS) – Safe Switching & Isolation for Medium Voltage Systems

Reliable switching for medium voltage distribution and control.
Our Load Break Switches (LBS) are specially engineered to interrupt current safely under load, enabling maintenance, fault isolation, or sectionalizing without compromising operator safety. Built for 12kV to 36kV systems, they’re a critical component in power networks for industrial, commercial, and utility applications.

Available Types of Load Break Switches:

1. Manual Load Break Switches

• Hand-operated with mechanical lever
• Ideal for installations where remote operation isn’t required
• Cost-effective and easy to maintain

2. Motorized / Remote-Controlled Load Break Switches

• Equipped with electric motors for automated or remote switching
• Suitable for SCADA systems or substations
• Enables quick fault isolation without manual intervention

3. Air-Insulated Load Break Switches (AIS)

• Uses air as the insulation medium
• Common in indoor switchgear or panel installations
• Simple design and low maintenance

4. Gas-Insulated Load Break Switches (GIS)

• Filled with SF₆ or eco-friendly insulating gas
• Compact and arc-proof — suitable for outdoor or space-limited environments
• High dielectric strength and long lifespan

5. Fused Load Break Switches

• Combines LBS with high-voltage fuses
• Provides both switching and short-circuit protection
• Common in transformer protection applications

The Features:

• Rated voltage up to 12kV / 24kV / 36kV
• Rated current up to 1250A
• Short-circuit withstand up to 25kA (1 sec)
• Visible break for safe disconnection
• Arc suppression technology ensures long contact life
• Compliant with IEC 62271-103, IEC 60265, and other international standards

🛠️ Applications:

• Transformer switching
• Ring main units (RMUs)
• Industrial plants
• Renewable energy systems (solar/wind)
• Utility substations
• Building distribution boards

What’s Included:

• Load Break Switch unit (type selected)
• Operating mechanism (manual handle or motorized actuator)

Installation manual and mounting accessories