Varistor surge protector type 2, class C, single-pole, SM20C/1-275 85101000

Electrical installation protection – reliable surge arrester

This single-pole, Type 2, Class C surge arrester from SIMTEC is a key element in protecting electrical installations from the effects of sudden voltage increases. The device effectively protects against surges caused by both lightning strikes and failures in the power grid. Installing the arrester at strategic points in the installation minimizes the risk of equipment damage and ensures uninterrupted power supply.

Construction and application

The SM20C/1-275 surge arrester is designed for mounting on a 35 mm rail (according to EN 60715 standard), which facilitates its integration with existing infrastructure. Its compact size (1 module) allows for efficient use of space in the distribution board. Class C means that the arrester is characterized by an average response speed, making it ideal for protecting circuits with devices with moderate inrush current. The rated AC voltage is 230V, and the rated discharge current is 20kA (8/20µs). The arrester has optical indication of the insert status, which facilitates quick identification of any failures.

Key features and benefits

• Effective protection: Protects the electrical installation from the harmful effects of surges, protecting connected devices.
• Versatility: Designed for use in TN networks.
• Easy installation: Quick and easy installation on a standard 35 mm rail.
• High quality: Made of durable materials, ensuring reliable operation for a long time.
• Status indication: Optical indication of the insert status facilitates diagnostics and maintenance.
• Wire cross-sections: Accepts rigid wires with a cross-section from 2.5 to 35 mm² and flexible wires from 2.5 to 25 mm².
• Safety: Has a degree of protection IP20, protecting against contact with dangerous elements.
• Compliance with standards: The product meets the requirements of applicable safety standards.

The SM20C/1-275 surge arrester is a solid and effective solution for every installer and end user looking for reliable protection of the electrical installation against surges.