RW12-12-1 12kV-15kV Fuse Cutout Porcelain Fuse Cutout

1. General Information

• Product Model: RW12-12-1
• Product Name: Outdoor High Voltage Porcelain Fuse Cutout
• Rated Voltage (Ur): 12kV (suitable for 12kV/15kV system)
• Standard Compliance: IEC 60282-1, IEC 62271, GB/T 15166.3
• Application: Used for overcurrent and short-circuit protection in 12kV/15kV overhead distribution lines, distribution transformers, and capacitor banks; also serves as an isolating switch for safe maintenance
• Insulator Type: Porcelain (high-strength electrical porcelain, corrosion-resistant and high-insulation performance)
• Mounting Type: Cross-arm Mounting, Single-phase

2. Rated Electrical Parameters

3. Structure & Material

• sứ cách điện: High-strength electrical porcelain, featuring excellent insulation performance, high temperature resistance, corrosion resistance, and good mechanical strength; suitable for long-term outdoor operation
• Fuse Tube: Flame-retardant epoxy resin tube integrated with an arc-extinguishing chamber, ensuring fast arc extinction and no reignition, matching the 8000A breaking current requirement
• Contacts: Copper or brass contacts with silver-plating / tin-plating, ensuring good electrical conductivity, oxidation resistance, and stable contact pressure, adapting to 100A/200A rated current
• End Fittings: Ductile iron with hot-dip galvanizing, corrosion-resistant and durable, ensuring stable connection with the porcelain insulator
• Mechanical Structure: Equipped with upper moving contact, lower fixed contact, and spring release mechanism; automatically drops out after fuse melting to form a visible break point, facilitating fault inspection

4. Performance Characteristics

• Automatic drop-out function after fuse melting, with clear visible break point for easy fault identification and maintenance
• Reliable arc extinguishing performance, perfectly matching the 8000A rated breaking current, effectively preventing arc reignition during breaking
• Superior insulation performance, with 110kV impulse voltage and 50kV power frequency withstand voltage, ensuring safe operation under 12kV system voltage
• Porcelain insulator with 250mm creepage distance, suitable for general pollution environments (Pollution Class II/III), waterproof and UV-resistant
• Low temperature rise during operation, stable electrical performance, long service life, adapting to 100A/200A long-term operation
• Mechanical tensile strength ≥8kN, ensuring stable mounting and operation in overhead distribution lines

5. Environmental & Installation Parameters

• Ambient Temperature: -40°C ~ +40°C
• Altitude: ≤1000m (customizable for high-altitude areas ≥3000m)
• Overall Height: ~550–650mm (varies by model, matching RW12-12-1 specification)
• Mounting Hole Distance: Customizable according to customer requirements
• Installation Direction: Suitable for horizontal or vertical mounting, adapting to cross-arm mounting requirements

6. Packing & Marking

• Packing: Each set is packed in a carton or wooden case to prevent damage to the porcelain insulator during transportation
• Marking: Each product is marked with model number (RW12-12-1), rated voltage (12kV), rated current (100A/200A), breaking current (8000A), manufacturer name, and batch number for traceability