Fuse link with striker VVC3 24kV/10A 004250007

Reliable medium voltage protection – VVC3 fuse links

VVC3 fuse links are proven solutions for protecting medium voltage (MV) electrical and power equipment. Designed to protect cables, conductors, transformers, motors and capacitor banks from the effects of short circuits and overloads. The construction of these fuse links ensures a quick and effective response in the event of a failure, minimizing the risk of damage and downtime in the installation.

Construction and application

VVC3 fuse links are characterized by a solid construction with a high-strength ceramic tube and galvanically protected contacts. The fuse element made of silver guarantees reliable operation in a wide range of working conditions. Equipped with a striker with a force of 50N, they provide clear indication of operation and allow for quick replacement. They are particularly recommended for use in SF6 gas switchgear, thanks to a temperature-sensitive element that does not react to short-term overloads.

Key features and benefits

• High short-circuit interrupting capacity: up to 63 kA – ensures effective protection even in the event of high short-circuit currents.
• Precise operation: rated current of 10A allows the fuse link to be adapted to specific application needs.
• Reliability and durability: the use of high-quality materials guarantees long life and stable operating parameters.
• Fast fault indication: striker facilitates identification of a blown fuse link and speeds up the replacement process.
• Versatility: suitable for protecting various MV devices, such as transformers, motors and cables.
• Environmental resistance: a reliable sealing system protects against moisture and corrosion.
• Compliance with standards: meet the requirements of IEC, confirming their safety and quality.

Technical parameters in practice

It is worth paying attention to a few key parameters: cold resistance at 230 mΩ affects power losses of 25.5 W at the rated current. The minimum I²t pre-arcing integral is 165 A²s, and the maximum 1450 A²s – these values are important when selecting the appropriate fuse link for a specific circuit and ensuring optimal selectivity with other protective devices. The rated AC voltage is 24kV at a frequency of 50/60Hz, making it a universal solution for most MV installations. The minimum breaking current is 42A, which means that the fuse link will only operate when this value is exceeded.