High voltage fuse | 50A | 12kV | 292mm | Eti VVT-D3

Technical Specifications

Model: VVT-D3 12kV/50A
Rated Voltage: 12,000 V AC
Rated Current: 50 A
Minimum Disconnection Current Limit: 175 A
Disconnection Capacity (AC): 63 kA
Pd (Power Loss): 58 W
Indication: Temperature limiter, 80N impact force
Cold Resistance: 16.5 mΩ
Standard: IEC 60282-1
With striker: Yes
Diameter: 68 mm
Length: 292 mm
Nominal Frequency: 45-60 Hz

Application:

Transformer protection
Electric motor protection
Capacitor block protection
Mounting in ring main units
Functions:

Protects electrical networks from overloads and short circuits
Quick disconnection in case of dangerous currents
Reliable operation even under high load
Temperature limiter with visual indication
Durable and sturdy design, suitable for long-term use
Compliant with IEC standards, ensuring safety and regulatory compliance
Usage:

Industrial electrical network protection
Electrical substations
Energy distribution systems
High-power transformers and generators
Protection for electric motors and capacitor blocks
Pros and Cons
Pros:

High disconnection capacity (63kA) – effective protection from high current failures
Durability – high-quality materials and reliable construction
Wide application – suitable for various industrial fields
Standardized production according to IEC 60282-1 – guaranteed quality and reliability
Equipped with an 80N impact force striker, enabling quick identification of an activated fuse
Cons:

Cannot be used as the primary short-circuit protection – requires additional switch
Large size (292 mm length) may be inconvenient in smaller electrical distribution boxes
The ETI VVT-D3 12kV/50A high-voltage fuse is a reliable solution for electrical system protection. It provides quick and efficient protection for transformers, motors, and capacitor blocks from overloads and failures. Due to its high quality, large disconnection capacity, and resistance to extreme conditions, this fuse is an indispensable component in industrial electrical networks.