Fuse link with striker VVT-D3 12kV/16A 004232008

Reliable medium voltage protection

VVT-D3 12kV/16A fuse link is a component designed to protect medium voltage (MV) electrical and power equipment against the effects of short circuits and overloads. It is used to protect cables, transformers, motors and capacitor banks. Its construction based on proven technology ensures reliable operation in demanding conditions.

Characteristics and application

Fuse links from the VV series, and in particular the VVT-D3 model, are distinguished by the presence of a thermal release. This solution allows reaction not only to sudden current surges, but also to a gradual temperature increase inside the fuse link. The release activates a striker with a force of 80N, signaling operation and allowing disconnection of the circuit. This design is particularly recommended for use in switchgear with SF6 gas.

The rated current value of 16A at a voltage of 6/12kV makes it a suitable choice for various applications in medium voltage networks. The breaking capacity at the level of 63kA guarantees effective short-circuit interruption, minimizing the risk of damage and downtime. Additionally, the fuse link has a cold resistance of 70mΩ and a power loss of 23W under rated current load.

Construction and advantages

The VVT-D3 fuse link has been designed with durability and reliability in mind. A high-strength ceramic tube protects the internal components from mechanical damage and environmental influences. Galvanically protected contacts and contact caps made of nickel-plated electrolytic copper ensure excellent electrical connections and corrosion resistance.

Key advantages of this product include:

• Thermal release: Reaction to temperature, not just current, increases safety and precision of operation.
• High breaking capacity: 63kA ensures effective short-circuit interruption even at high fault currents.
• Reliable sealing system: Protects against moisture and corrosion, extending the life of the fuse link.
• Improved contact cap: Facilitates replacement and minimizes the risk of errors during assembly.
• Silver fuse element: Ensures stable operating parameters and high protection efficiency.
• Technical reports from KEMA Labs tests: Confirm compliance with standards and a high level of product quality.
• 80N striker: Effectively signals the operation of the fuse link and activates the tripping mechanism of power fuses.