FCO (Polymer) Eaton

The Drop-out Fuse Cutout (FCO) is a traditional yet highly effective protective device widely used in medium-voltage networks, particularly at branch points, distribution transformer stations, or overhead lines. In the event of an overcurrent fault, the fuse link melts and the fuse holder automatically “drops” out of its support. This provides a rapid circuit disconnection, isolating the fault and ensuring the safety of the rest of the system.

Impressive Technical Specifications of the Drop-out Fuse Cutout

Key Features:

• The Drop-out Fuse Cutout (FCO) helps isolate fault currents immediately upon the occurrence of an overcurrent or short circuit, limiting damage from spreading to critical equipment such as transformers and main lines. The “drop-out” mechanism allows for visual identification of the fault location from the ground, helping to shorten troubleshooting time and minimize the scope of power outages.
• The product utilizes insulation materials that meet the IEC 61109 standard, featuring the ability to withstand harsh weather, UV resistance, and high humidity. Its simple yet robust mechanical structure ensures stable operation over a long period with minimal maintenance requirements, making it particularly suitable for installation on outdoor poles or in hard-to-reach areas.
• The S9DAP1A/S9D2P1A drop-out fuse cutouts are manufactured according to IEC and ANSI standards—the two leading and most prestigious standard systems in the power industry. The product has passed rigorous tests at the DEKRA – VEIKI (STL) laboratory, ensuring high reliability for practical application.

Practical Applications

The drop-out fuse cutout is commonly applied in various medium-voltage systems:

• Protection of medium-voltage distribution transformers at 22/24/27kV.
• Protection of overhead lines in urban and rural areas.
• Branch points of the medium-voltage distribution network
• Substations in industrial zones and residential areas
• Solar power systems connected to the medium-voltage grid.
• Electrical projects requiring simple and effective protection solutions.

Why choose MPCo. as your equipment supplier?

MPCo. is a professional partner in the field of supplying medium and low-voltage electrical equipment, while also serving as a leading technical consultant and implementation unit for SCADA – DAS automation solutions in Vietnam. When choosing MPCo., you are guaranteed:

• Authentic products
• Full CO/CQ certifications
• Dedicated technical support from consultation and selection to installation
• Competitive prices and clear after-sales policies

The Eaton’s Cooper 27kV drop-out fuse cutout is a fundamental yet indispensable protection device in medium-voltage electrical systems. With its robust design, reliable circuit-breaking capability, and compliance with international standards, the product delivers high operational efficiency, ease of maintenance, and low investment costs—making it the ideal choice for electrical projects ranging from urban to rural areas.