Product Overview

The SGFCO123-33/100 is a ceramic-based fuse cutout designed for mediumto high-voltage power systems operating at 33kV. As a critical protective device, it ensures safe and stable operation of distribution networks by providing reliable overload and short-circuit protection. Featuring advanced electrical and mechanical properties, it complies with international standards such as IEC 60282-1 and IEEE C37.40, making it suitable for a wide range of demanding operational environments.

Product Features

◆Rated voltage: 33kV with a rated current of 100A.

◆Breaking capacity: 6.3kA (RMS symmetrical) for effective fault interruption.

◆Impulse withstand voltage: 170kV (1.2/50μs lightning impulse).

◆Power frequency withstand voltage: 70kV (1-minute dry withstand).

◆Creepage distance: 660mm for anti-pollution design in harsh environments.

◆High-grade ceramic insulators with exceptional mechanical strength (≥120 MPa) and dielectric properties (≥12 kV/mm).

◆Dual-element fuse link for coordinated overload and short-circuit protection.

Product Advantages

◆Enhanced reliability through compliance with IEC and IEEE standards.

◆Superior dielectric and mechanical properties ensure durability in demanding conditions.

◆Effective fault isolation minimizes equipment damage and grid disruptions.

◆Anti-pollution design reduces contamination-induced flashover risks.

◆Coordinated protection characteristics ensure selective coordination with downstream devices.

Usage Scenarios

◇Industrial power distribution for factories, mining facilities, and heavy industrial plants.

◇Public infrastructure including substations, grid hubs, and transmission nodes.

◇Renewable energy systems such as wind farms and photovoltaic plants.

◇Applications requiring reliable protection under harsh environmental conditions.

Technical parameters

Model number	Rated voltage	Rated current	Breaking current	Impulse voltage	Power frequency withstand voltage	Creepage distance
SGFCO123-33/100	33kV	100A	6.3kA	170kV	70kV	660mm