AC Fuse Base
This AC fuse base is designed to protect electrical circuits from overload and short-circuits. It is constructed with high-quality materials for safe and reliable usage.
Technical Specifications
Product Overview
High-Performance AC Fuse Base
This AC fuse base series is engineered for robust electrical protection in transmission and distribution systems, supporting rated voltages up to 690V and currents up to 125A. It provides reliable defense against overloads and short circuits for electrical circuits, semiconductor devices, and electric motors. Built with high-strength porcelain or epoxy glass and a flame-retardant resin shell, it ensures safe operation and easy installation in diverse industrial environments.
Technical Ratings
Key Performance Metrics
690 V
Max Rated Voltage
125 A
Max Rated Current
100 kA
Breaking Capacity
Ingress Protection
IP20
- Rated Frequency
- 50 Hz
Compliance & Standards
- International Standards
- IEC 60269GB13539.1GB/T13539.2
Application Scope
Protection Categories
- gG/gL: General purpose cable and line protection
- aR/gR/gs/gtr: Semiconductor device protection
- aM: Electric motor short-circuit protection
Construction Features
Material Composition
- Fuse Body: Pure copper, copper wire, or silver
- Fusion Tube: High-strength porcelain or epoxy glass cloth pipe
- Arc Extinguishing Medium: High-purity processed quartz sand
- Casing: High-temperature resistant flame-retardant resin
- Design Advantages
- Flame RetardantHigh Temperature ResistantInsulated ShellFirm CoreEasy Installation
Model Specifications
Model Parameter Reference
| Common Model (gG) | Fast Model (aR) | Voltage (V) | Current (A) | Size D×L (mm) |
|---|---|---|---|---|
| NK52 | NKS52 | 250 | 0.5~20 | 5×20 |
| RT18-63X | - | 690 | 63 | 14×51 |
