Varistor surge protection device type 2, class C, four-pole, SM20C/4-275 85102000

Protection of electrical installations with SIMTEC surge arrestors

This four-pole, Class C, Type 2 surge arrester from SIMTEC is a key element in protecting electrical installations in residential and commercial buildings. Its function is to protect against the effects of surges that can damage sensitive electronic and electrical equipment. The device is designed to work with TN networks and provides effective protection against both impulse and gradual voltage increases.

The SM20C/4-275 surge arrester is characterized by a fast response time (less than 25 ns), allowing for almost instantaneous surge limitation. A protection level of 1.2 kV guarantees the safety of connected devices. Mounting is done on a standard 35 mm rail, which facilitates integration with existing electrical infrastructure. Optical signaling of the insert status informs about the need for replacement after activation.

Key features and benefits:

• Versatile application: The arrester is designed for TN networks, ideal for both home and industrial installations.
• Fast response: A response time of less than 25 ns minimizes the risk of damage to devices sensitive to surges.
• High efficiency: A protection level of 1.2 kV provides effective protection against harmful surges.
• Easy installation: Mounting on a standard 35 mm rail facilitates installation and replacement.
• Visual status control: Optical signaling of the insert status facilitates monitoring and maintenance.
• Four-pole construction: Provides comprehensive protection for polyphase circuits.
• Impulse current 20kA: Allows absorption of large surges without damaging the device.

This arrester is indispensable wherever high reliability and protection against the effects of disturbances in the electrical network are required. Thanks to its design and technical parameters, it constitutes a solid protective barrier for connected devices, ensuring their long-term and trouble-free operation. For installers, this means confidence in performing a correct installation in accordance with applicable standards and customer satisfaction resulting from ensuring the safety of their property.