10kV 100A Drop-Out Fuse Cutout

10kV 100A Drop-Out Fuse Cutout

The SGFCO121-10/100 drop-out fuse cutout provides reliable protection for 10kV distribution networks and transformers. With a rated current of 100A and advanced interruption capabilities, it ensures system stability under normal loads and rapid safety response during faults. Designed for durability and low maintenance, it meets international standards, offering utilities a resilient and efficient solution for grid protection.

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Product Overview

The SGFCO121-10/100 is an advanced drop-out fuse cutout for protecting 10kV distribution systems and transformers. It combines precision engineering with robust safety to isolate faults, ensuring operational stability and system integrity. Compliant with IEC, IEEE, and ANSI standards, the device performs reliably in varied environments. With its rapid fault interruption and strong resistance to electrical and environmental stress, it is a key component for modernizing and enhancing grid reliability.

Product Features

◆Electrical Precision: Rated current of 100A with ±1% deviation, fully compliant with IEC 60282-1:2020 standards, ensuring high accuracy in load discrimination.

◆High Breaking Capacity: Capable of interrupting fault currents up to 6.3 kA.

◆Dielectric Strength: Withstands 110 kV impulse voltages (simulating lightning strikes) and 42 kV power-frequency voltages for one minute.

◆Environmental Resilience: Features a 220 mm creepage distance to prevent surface tracking and insulation degradation, per IEC 60815.

◆Safety Mechanisms: Integrates a spring-loaded tripping mechanism with a visible break indicator, achieving arc quenching within 10 ms. Proprietary silica-sand filler ensures arc extinction in ≤8.3 ms.

◆Durable Construction: Made from corrosion-resistant aluminum alloy and UV-stabilized polymer composites, operational in temperatures from -40°C to +85°C.

◆Operational Efficiency: Modular design enables tool-free fuse element replacement, while vibration-resistant structure meets IEEE C37.41 mechanical endurance standards (5,000 cycles).

Product Advantages

◆Enhanced System Safety: Combines rapid fault interruption with clear visual indication, minimizing downtime and risk.

◆Operational Reliability: High precision reduces nuisance tripping, ensuring stable performance under varying load conditions.

◆Long-Term Durability: Resilient materials and design ensure consistent functionality in harsh environmental conditions, extending service life.

◆Low Maintenance: Modular components and tool-free replacement reduce maintenance efforts and associated costs.

◆Compliance & Assurance: Adherence to IEC, IEEE, and ANSI standards ensures product quality, safety, and reliability.

Usage Scenarios

◇Protection of 10kV distribution lines and transformers in utility grids.

◇Industrial power systems requiring reliable fault isolation and operational safety.

◇Outdoor installations exposed to humidity, pollution, dust, or extreme weather.

◇Areas with high lightning activity or frequent electrical stress.

◇Applications prioritizing minimal maintenance, long service life, and compliance with international standards for sustainable infrastructure.

Technical parameters

Model number Rated voltage Rated current Breaking current Impulse voltage Power frequency withstand voltage Creepage distance
SGFCO121-10/100 10kV 100A 6.3kA 110kV 42kV 220mm

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