Screened surge limiter (COUPLING) for 20kV line field for connection to RSTI, Raychem / TE Connectivity TE-CS3111 RSTI-CC-68SA1810

Medium Voltage Network Protection – Raychem / TE Connectivity Surge Arrester

This shielded surge arrester, designed to work with 20kV line fields and RSTI systems, is a key element in protecting medium voltage installations. Its task is to protect 15kV networks from the effects of overvoltages, ensuring continuity and reliability of power supply. This device is particularly important in places exposed to lightning strikes or network disturbances.

The arrester is intended for parallel connection to the same phase, allowing for effective protection against overvoltages. The construction based on a T-connector and screw connection ensures easy and secure mounting, and the shielding minimizes the impact of electromagnetic interference. The possibility of using wires with a cross-section from 35 to 800 mm² makes it a universal solution for various installations.

Features and application

• Shielding: Provides reduction of electromagnetic interference, which translates to more stable system operation.
• Rated voltage: Adapted to operate in 8.7/15 (17.5) kV networks – standard voltage in many medium voltage installations.
• Wire cross-section: Wide range of permissible cross-sections (35-800 mm²) allows use with various types of cables and wires.
• Mounting: Screw connection ensures a solid and durable electrical connection, and the T-connector facilitates integration with existing RSTI infrastructure.
• Indoor application: Designed for indoor mounting, which increases its safety and durability.
• Three-core: Designed to operate in three-phase circuits, providing comprehensive protection for the entire installation.

This arrester finds application wherever protection against overvoltages is required in medium voltage networks – from transformer stations to industrial plants and public buildings. Its solid construction and high quality of workmanship guarantee long-term and trouble-free operation.