200A Fuse Cut Out Fused Circuit Breaker / High Voltage Drop Fuse Cut Out
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Overview and Operating Principle
The high-voltage drop-out Fuse cutout is a protective electrical device designed to interrupt power in the event of overloads or short circuits. It operates by incorporating a metal fuse element in series with the circuit. When excessive current flows, the element heats up and melts, breaking the circuit and preventing damage to equipment. These devices are known for their simple construction, ease of maintenance, and wide application across power distribution systems, industrial installations, and household electrical networks.
Model: HRW3-10kV Drop-Out Fuse Cutout
| Parameter | HRW5-40.5/100 | HRW5-40.5/200 |
|---|---|---|
| Rated Voltage (kV) | 40.5 | 40.5 |
| Rated Current (A) | 100 | 200 |
| Breaking Capacity (VA), Upper Limit | 400 | 800 |
| Breaking Capacity (VA), Lower Limit | 10 | 30 |
| Power Frequency Dry Withstand (kV) | 105 | 105 |
| Power Frequency Wet Withstand (kV) | 185 | 185 |
| Max Temperature Rise (excluding live parts) (℃) | 60 | 60 |
Classification of High Voltage Fuse Cutouts
Fuse cutouts can be categorized based on voltage levels into high-voltage and low-voltage types. Additionally, they can be classified according to the protection application:
Transformer protection fuses
General-purpose fuses for electrical equipment
Fuses for voltage transformers
Capacitor bank protection fuses
Semiconductor circuit protection fuses
Motor and household appliance fuses
From a structural perspective, fuse cutouts can be grouped into open type, semi-enclosed type, tube type, and jet type variants.
