Product Overview
The SGFCO121 Drop-Out Fuse Cutout is a key protective device used in electrical distribution systems to ensure operational safety and reliability. It automatically disconnects circuits during overload or short-circuit conditions, isolating faults to protect transformers and distribution lines from damage. Engineered for durability and consistent performance, it plays a vital role in maintaining grid stability and preventing extended power outages.
Product Features
◆Precision-engineered fuse mechanism for reliable fault interruption.
◆Robust construction designed to withstand electrical and environmental stress.
◆User-friendly, intuitive design for straightforward installation and operation.
◆Easy-to-reset or replace drop-out fuse assembly.
◆Clear visual indication of operation status.
Product Advantages
◇High Reliability: Consistently performs under demanding conditions, reducing unexpected failures.
◇Quick Fault Isolation: Helps minimize downtime and limits damage to connected equipment.
◇Low Maintenance: Simple design ensures easy inspection, replacement, and servicing.
◇Cost-Effective: Extends equipment lifespan and lowers overall system maintenance costs.
◇Wide Compatibility: Suitable for integration in various distribution network configurations.
Usage Scenarios
Ideal for overhead distribution lines, pole-mounted transformers, and substation applications in utility, industrial, and commercial power networks. Commonly used in rural and urban distribution systems for overload and short-circuit protection, especially where reliable, economical, and easy-to-maintain fault protection is required.

Technical parameters
| Model number | Rated voltage | Rated current | Breaking current | Impulse voltage | Power frequency withstand voltage | Creep distance |
| SGFCO121-12/100 | 12kV | 100A | 6.3kA | 110kV | 42kV | 220mm |
| SGFCO121-12/200 | 12kV | 200A | 8.0kA | 110kV | 42kV | 220mm |
| SGFCO121-15/100 | 15kV | 100A | 6.3kA | 125kV | 45kV | 320mm |
| SGFCO121-15/200 | 15kV | 200A | 8.0kA | 125kV | 45kV | 320mm |
| SGFCO121-24/100 | 24kV | 100A | 6.3kA | 150kV | 65kV | 440mm |
| SGFCO121-24/200 | 24kV | 200A | 8.0kA | 150kV | 65kV | 440mm |
| SGFCO121-33/100 | 33kV | 100A | 6.3kA | 170kV | 70kV | 660mm |
| SGFCO121-33/200 | 33kV | 200A | 8.0kA | 170kV | 70kV | 660mm |
| SGFCO121-36/100 | 36kV | 100A | 6.3kA | 170kV | 70kV | 720mm |
| SGFCO121-36/200 | 36kV | 200A | 8.0kA | 170kV | 70kV | 720mm |
| SGHFCO121-12/100 | 12kV | 100A | 6.3kA | 110kV | 42kV | 380mm |
| SGHFCO121-12/200 | 12kV | 200A | 8.0kA | 110kV | 42kV | 380mm |
| SGHFCO121-24/100 | 24kV | 100A | 6.3kA | 150kV | 65kV | 540mm |
| SGHFCO121-24/200 | 24kV | 200A | 8.0kA | 150kV | 65kV | 540mm |
| SGHFCO121-33/100 | 33kV | 100A | 6.3kA | 170kV | 70kV | 720mm |
| SGHFCO121-33/200 | 33kV | 200A | 8.0kA | 170kV | 70kV | 720mm |











