The Asiapower AP-RW12 Series 33kV porcelain fuse cutout is an essential outdoor high-voltage protection device. Specifically engineered for 27kV and 33kV distribution lines and transformers, it serves a dual purpose: providing robust overcurrent protection and acting as a visible isolating switch to ensure a safe working environment for maintenance crews.
Technical Specifications
| Parameters | AP-RW12-33/100A | AP-RW12-33/200A |
| Rated Voltage | 33kV | 33kV |
| Rated Current | 100A | 200A |
| Breaking Current | 8kA | 12.5kA |
| Impulse Voltage (BIL) | 170kV | 170kV |
| Power Frequency Voltage | 70kV | 70kV |
| Creepage Distance | 660mm | 660mm |
Core Advantages
Universal Compatibility: Fully interchangeable with S&C, Chance, Cooper, and ABB designs, making it the perfect choice for system upgrades or maintenance replacements.
Superior Material Quality: * Contacts: High-conductivity copper with heavy silver plating to ensure low resistance and resist corrosion.
Fuse Tube: High-strength fiberglass with a synthetic-quenching inner liner and specialized UV-resistant outer coating.
Hardware: Hot-galvanized steel and stainless steel components for maximum longevity in harsh outdoor environments.
Enhanced Safety: Provides reliable protection against low-level overloads, intermediate faults, and high-capacity fault currents.
Detailed Engineering Features
Self-Aligning Top Contact: Attached via stainless steel rivets to a galvanized steel hood, ensuring smooth operation even in severely corrosive areas.
Rugged Hinge Design: Employs large pivot areas and high-strength copper alloy castings for stable current transfer and easy “drop-in” fuse holder operation.
Advanced Fuse Holder: Features a silver-plated bronze trunnion and a link ejector with a stainless steel torsion spring to ensure rapid link ejection during fault interruption.
Arc Shortening Rod: For 200A models, an optional copper arc shortening rod is available to achieve higher interrupting capacities and maintain full voltage ratings.
Application & Installation
Application: Protection of distribution lines, transformer banks, and capacitor banks.
Mounting: Comes standard with a NEMA Heavy Duty “B” bracket. Optional Type “X” brackets are available for extended cross-arm clearance.
Looking for a drop-in replacement for Chance or ABB? Contact our engineering team for a compatibility check.
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