Calibrated insert STV D02 Insert D02 50A 002243013

Calibrated inserts for fuses – reliability and selectivity in installations

STV D02 50A calibrated insert is an element dedicated to STV D02 disconnectors, used to precisely adjust the protection characteristics to the needs of a specific electrical installation. Its main task is to ensure selective cooperation with other protective elements, such as circuit breakers, minimizing the risk of unnecessary circuit tripping. Therefore, in the event of a failure, only the damaged part of the installation is disconnected, while the remaining circuits remain in operation.

Functionality and application

The calibrated insert allows you to adjust the rated current of the protection in the range of 2 to 63A without the need to replace the entire disconnector. This solution is particularly useful in installations where flexibility and the ability to quickly respond to changing operating conditions are required. Replacing the insert is simple and intuitive, and its design ensures safety during installation – no possibility of touching live parts. Additionally, a disconnector with a fuse link enables selective cooperation with overcurrent circuit breakers.

Key features and benefits

• Precise adjustment: The ability to choose an insert with the appropriate rated current (in this case 50A) allows for perfect matching of the protection to the load.
• Selectivity: Ensures effective selectivity with other protective elements, minimizing the risk of unnecessary tripping.
• Easy replacement: Replacing the insert is quick and easy, which translates to minimal installation downtime.
• Safety: The design of the insert ensures safety during installation and replacement.
• Versatility: Compatible with STV D02 disconnectors, allowing the use of different inserts in one device.
• Solid construction: The product of the ETI Polam brand is characterized by high quality and durability.
• Possibility of sealing: Provides additional protection against unauthorized access and manipulation.

It is important to choose the correct calibrated insert for a specific application to ensure optimal protection of the electrical installation and avoid unnecessary downtime.