Product Overview

The SGFCO122-12/100 porcelain fuse cutout is designed to be a resilient and durable protection device for 12kV distribution feeders and transformer circuits. It is specifically built to withstand the rigors of harsh outdoor and industrial environments where conventional polymeric devices may degrade. Its primary role is to provide dependable overcurrent protection, creating a visible break for safe maintenance. Manufactured with a focus on mechanical strength and long-term environmental resistance, it serves as a cornerstone of protection in challenging network locations.

Product Features

◆ Durable Porcelain Housing: High-strength glazed porcelain provides excellent mechanical and thermal shock resistance, with long-term stability in UV and wide temperature ranges (-40°C to +75°C).

◆ Pollution-Resistant Insulation: Extended 320mm creepage distance prevents surface tracking, ensuring reliability in humid, dusty, salt-fog, or polluted environments.

◆ 6.3kA Fault Interruption: Safely interrupts fault currents to effectively isolate downstream equipment like transformers.

◆ High Dielectric Strength: Withstands 125kV impulse and 45kV power-frequency voltages for one minute, offering a high safety margin.

◆ Visible Fault Indication: Drop-out mechanism with clear visual indicator allows quick confirmation of operation for easier maintenance.

◆ Simple & Reliable Design: Focuses on field-proven, straightforward mechanics for easy installation and service.

Product Advantages

◆ Superior Environmental Durability: Inert porcelain housing resists weathering, corrosion, and UV, ensuring decades of stable performance.

◆ Reliable in Harsh Conditions: Extended creepage and robust build reduce insulation failure risk in wet or polluted areas, minimizing outages.

◆ Low Lifetime Maintenance: Durable materials and simple design lower upkeep needs and extend service life, reducing total cost.

◆ Certified Safety & Compatibility: Complies with IEC 62271 and ANSI C37.42 standards for safe, interoperable use in global 12kV systems.

◆ Easy Field Maintenance: Clear visual indicator and accessible design enable quick inspection and safe fuse replacement.

Usage Scenarios

◇ Coastal & High-Humidity Sites: Ideal for substations near coasts, rivers, or in foggy/rainy regions.

◇ Industrial & Polluted Zones: Protects feeders to chemical plants, mines, wastewater facilities, and other contaminated areas.

◇ Extreme Temperature Regions: Suitable for deserts (hot days/cold nights) or mountainous areas with large seasonal swings.

◇ Critical Overhead Lines: Ensures long-term reliability for essential 12kV distribution feeders under environmental stress.

◇ Legacy System Upgrades: A durable, reliable replacement for aging fuse cutouts in existing infrastructure.

Technical parameters

Model number	Rated voltage	Rated current	Breaking current	Impulse voltage	Power frequency withstand voltage	Creepage distance
SGFCO122-12/100	12kV	100A	6.3kA	125kV	45kV	320mm