Fusible insert with striker VVT-D3 24kV/6.3A 004252006

Reliable medium voltage protection

VVT-D3 24kV/6.3A fuse link is a component designed to protect medium voltage (MV) electrical and power equipment against the effects of overloads and short circuits. It is used to protect cables, transformers, motors, and capacitor banks. The design with a thermal trigger provides additional protection against uncontrolled temperature increases, which is particularly important in specific operating conditions.

Characteristics and application

VVT-D3 type fuse links are equipped with a thermal trigger, which activates the striker with a force of 80N when the fuse body reaches a temperature of approximately 120°C – regardless of the heat source. This solution guarantees a quick and effective response to the threat, minimizing the risk of damage to protected equipment. The switching capacity at 63kA ensures safety even in the event of high short-circuit currents. The minimum breaking current is 25A, which means that the fuse will only operate effectively when this value is exceeded.

Advantages and benefits

• High reliability: VV fuse links are characterized by proven reliability, supported by test reports from KEMA Labs.
• Thermal protection: The thermal trigger protects against the effects of prolonged overheating, which is particularly important in applications exposed to slow temperature increases.
• Fast response: The 80N striker ensures quick disconnection of the circuit in the event of a short circuit or overload.
• Durable construction: The high-strength ceramic tube and galvanized contacts guarantee 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 element made of silver ensures stable operation and predictable behavior in emergency situations.
• Versatility: Availability of fuse bases with or without a tripping indicator (microswitch) allows you to tailor the solution to the specific needs of the installation.

The VVT-D3 fuse link is a solid and proven protective element that finds wide application both in new installations and during the modernization of existing power systems. Its technical parameters and design provide effective protection of MV equipment against the effects of overloads and short circuits, minimizing the risk of downtime and costly repairs.