Fuse cut-out with striker VVT-D3 12kV/80A 004232016

Reliable medium voltage protection

VVT-D3 12kV/80A fuse link is a component designed to protect medium voltage (MV) electrical and power equipment from the effects of overloads and short circuits. The use of a fuse link provides protection for wires, cables, transformers, motors, and capacitor banks. The design with a striker ensures a quick response and indication of operation, which is crucial for minimizing downtime and ensuring continuity of supply.

Characteristics and application

The VVT-D3 fuse link is distinguished by the presence of a thermal trigger, which activates an 80N striker when the fuse body reaches a temperature of approximately 120°C – regardless of the heat source. This solution is particularly important in SF6 gas switchgear, where traditional overload detection methods may be less effective. The breaking capacity of 63kA guarantees effective circuit interruption in the event of a serious short circuit. The rated current of the fuse link is 80A at a rated voltage of AC 6/12kV and a frequency of 50/60Hz.

Advantages for the installer and end user

• High reliability: VV fuse links are subjected to rigorous type tests (KEMA Labs reports), which confirms their high quality and compliance with standards.
• Overheat protection: The thermal trigger protects against damage caused by prolonged overload, not just short-term current surges.
• Fast indication: The 80N striker immediately indicates the operation of the fuse link, making it easier to locate and repair damage.
• Durable construction: A high-strength ceramic tube and galvanically protected contacts ensure long life and resistance to environmental conditions.
• Easy replacement: The improved contact cap facilitates and speeds up the replacement of the fuse link during maintenance or repair.
• Safety: The silver fuse element and high short-circuit breaking capacity provide effective protection of the electrical installation.
• Compatibility: Fuse bases with or without an operation indicator (microswitch) are available, increasing application flexibility.
• Reliable sealing system: Protects against moisture, which extends the life of the fuse link and ensures stable operation.