24kV 630A Indoor SF6 Gas Insulated Load Break Switch – FLN36-12D for RMU

Product Description

The SF6 Load Break Switch series is a high-performance switchgear component designed for medium-voltage distribution networks. Utilizing SF6 gas as the insulation and arc-extinguishing medium, it ensures efficient closing and breaking of load currents, overload currents, and no-load currents for transformers and capacitor banks. Its compact size, maintenance-free design, and ease of installation make it an ideal choice for Ring Main Units (RMU), cable distribution boxes, and switching substations in both urban and rural environments.

Features

• Three-Position Operation: Features a rotary movable contact structure with three distinct operating states: Closing, Opening, and Earthing.

• Superior Insulation: The main circuit is sealed within an epoxy resin housing, ensuring conductive functions remain unaffected by external environmental factors.

• Enhanced Safety: The housing includes an internal structural “weak point” to safely release overpressure in the event of internal arcing, protecting the cabinet and personnel.

• Flexible Mechanisms: Available with a K-type single spring mechanism (FLN36-12D) or an A-type double spring mechanism (FLRN36-12D) that can be equipped with fuse combinations for comprehensive protection.

• Reliable Performance: Engineered for high efficiency, safety, and a long mechanical life of up to 5,000 operations.

• Standard Compliance: Satisfies international and national standards including IEC94, GB3804, and GB16926.

• Power Supply & Substations: Serving as a reliable protecting and control device.

• Secondary Distribution: Optimized for Ring Main Units (RMU) and cable distribution boxes.

• Industrial Networks: Suitable for urban and rural medium-voltage switchgear distribution networks.

Normal Working Environment

• Altitude: ≤ 1000m (standard) up to 2000m.

• Ambient Temperature: -40°C to +40°C.

• Relative Humidity: Daily average ≤ 95%, Monthly average ≤ 90%.

• Earthquake Intensity: ≤ 8 degrees.

• Conditions: Free from significant corrosive or flammable gas, vapor, and recurrent severe vibration.