33kV 35kV 36kV Polymer Fuse Cutout

1. General Information

• Product Name: Outdoor High Voltage Polymer Fuse Cutout
• Rated Voltage (Ur): 33kV (suitable for 33kV/36kV system)
• Standard Compliance: IEC 60282-1, IEC 62271, GB/T 15166.3
• Application: Used for overcurrent and short-circuit protection in 33kV/36kV overhead distribution lines, distribution transformers, and capacitor banks; also serves as an isolating switch for safe maintenance
• Insulator Type: Polymer (HTV Silicone Rubber + FRP Core Rod)
• Mounting Type: Cross-arm Mounting, Single-phase

2. Rated Electrical Parameters

3. Structure & Material

• Insulator: HTV silicone rubber umbrella skirt with FRP (Fiber Reinforced Plastic) core rod, featuring excellent anti-pollution, anti-aging, and impact resistance; lightweight and unbreakable
• Fuse Tube: Flame-retardant epoxy resin tube integrated with an arc-extinguishing chamber, ensuring fast arc extinction and no reignition
• Contacts: Copper or brass contacts with silver-plating / tin-plating, ensuring good electrical conductivity, oxidation resistance, and stable contact pressure
• End Fittings: Ductile iron with hot-dip galvanizing, corrosion-resistant and durable
• 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

4. Performance Characteristics

• Automatic drop-out function after fuse melting, with clear visible break point for easy fault identification
• Reliable arc extinguishing performance, effectively preventing arc reignition during breaking
• Superior anti-pollution performance, suitable for severe pollution environments (Pollution Class IV)
• Waterproof, UV-resistant, and maintenance-free, adapting to harsh outdoor working conditions
• Low temperature rise during operation, stable electrical performance, long service life
• Mechanical tensile strength ≥10kN, ensuring stable mounting and operation

5. Environmental & Installation Parameters

• Ambient Temperature: -40°C ~ +40°C
• Altitude: ≤1000m (customizable for high-altitude areas ≥3000m)
• Overall Height: ~600–700mm (varies by model)
• Mounting Hole Distance: Customizable according to customer requirements
• Installation Direction: Suitable for horizontal or vertical mounting

6. Packing & Marking

• Packing: Each set is packed in a carton or wooden case to prevent damage during transportation
• Marking: Each product is marked with model number, rated voltage, rated current, breaking current, manufacturer name, and batch number for traceability