Fuse link with striker VVC3 12kV/16A 004230008

Reliable medium voltage protection

VVC3 12kV/16A fuse link is a proven protective element in medium voltage installations. Designed to protect electrical and power equipment of MV – lines, cables, transformers, motors or capacitor banks – against the effects of short circuits and overloads. Its construction ensures a quick and effective response in the event of a failure, minimizing the risk of damage and downtime.

Construction and application

The VV fuse link is characterized by a solid construction with a high-strength ceramic tube and contacts protected by galvanization. The fuse element made of silver guarantees precise operation. The use of a striker with a force of 50N indicates the operation of the fuse link, facilitating the location of the fault and the activation of the fuse disconnectors. This is particularly important in SF6 gas switchgear, where reliability and precision are required.

Key features and benefits

• High short-circuit breaking capacity (63 kA): ensures effective protection even in the event of high short-circuit currents.
• Rated minimum breaking current (56 A): guarantees correct operation under various working conditions.
• Reliable sealing system: protects against moisture, which extends the life of the fuse link and ensures stable operating parameters.
• Easy replacement: improved contact cap facilitates and speeds up the replacement process during maintenance or repair.
• Wide range of rated voltages (6/12 kV): allows adaptation to different installation configurations.
• Cold resistance (70 mΩ) and power loss (23 W): allow for optimization of the energy parameters of the installation.
• Compliance with standards: the product meets the requirements of IEC standards, confirming its safety and reliability.

Technical parameters in practice

It is worth paying attention to the I²t characteristic, which determines the amount of thermal energy flowing through the fuse link during operation. The minimum pre-arcing integral I²t is 320 A²s, and the maximum 5200 A²s – these values are crucial when selecting the appropriate fuse link for a specific application and ensuring optimal protection of the installation. In addition, the cold resistance at 70 mΩ affects the power loss of 23 W, which is important when designing energy-efficient electrical installations.