Fuse link with striker VVC3 12kV/32A 442 004230512

Medium Voltage Fuse Links – Reliable Installation Protection

VV fuse links are a proven protection element in medium voltage (MV) networks. They are designed to protect electrical and power equipment, such as cables, transformers, motors, and capacitor banks, against the effects of short circuits and overloads. The construction of the fuse links ensures a quick and effective response to irregularities in the circuit, minimizing the risk of damage and downtime.

The VVC3 12kV/32A 442 fuse link is a model with a striker with a force of 50N, which indicates an emergency condition after operation. The striker extends with an initial force of approximately 50N, making it easier to identify a blown fuse link and activate the tripping mechanism of the fuse switches. A breaking capacity of 63 kA guarantees effective interruption of the short-circuit current.

Construction and Application

VV fuse links are characterized by a solid construction, using a high-strength ceramic tube and contacts protected by galvanization and coated with nickel. The fuse element is made of silver, ensuring reliable conduction of the rated current. This makes these fuse links resistant to environmental conditions and ensures long-term, trouble-free operation.

The choice between VVC3 and VVT-D3 fuse links depends on the specifics of the application. VVT-D3 fuse links are equipped with an additional thermal trigger that reacts to an increase in the fuse link body temperature to approx. 120°C, regardless of the cause of overheating. This design is particularly recommended for use in switchgear with SF6 gas.

Key Features and Benefits

• High breaking capacity (63 kA): Ensures effective protection of the installation against damage caused by short-circuit currents.
• Durable construction: Ceramic tube and galvanized contacts guarantee long-term and reliable operation.
• Operation indication: A 50N striker indicates a blown fuse link, making it easier to locate the fault and replace the element.
• Availability of different types: The ability to choose between VVC3 (standard) and VVT-D3 (with a thermal trigger) allows you to tailor the solution to specific application needs.
• Compliance with standards: ETI Polam fuse links meet stringent safety and quality standards, as confirmed by technical reports from KEMA Labs.
• Easy replacement: Improved contact cap facilitates quick and trouble-free replacement of fuse links during maintenance or repair of the installation.