Surge arrester T2 (C) ETITEC C T2 275/20 1+0 002440393

Electrical installation protection with ETITEC C T2 275/20 1+0

This class T2 surge protector is a key element in protecting electrical installations from the effects of lightning strikes and overvoltages in the network. Designed by ETI Polam, the ETITEC C T2 275/20 1+0 model effectively protects electrical and electronic devices in residential and commercial buildings. Its compact size – only 1 module – makes it easy to mount on a TH-35 mm DIN rail, saving valuable space in the distribution board.

Functionality and application

This surge protector is designed to work with TN and TT networks, providing versatile applications in various types of installations. Its task is to limit the voltage to a safe level of 1.5 kV, protecting connected devices from damage. Optical signaling informs about the device's operation, which facilitates diagnosis and a quick response in the event of an overvoltage. The rated discharge current of 20 kA (8/20 µs) guarantees effective protection even during strong discharges.

• Versatility: Compatible with TN and TT network systems.
• Fast response: Optical status indication facilitates identification of damage.
• Compact size: Occupies only 1 module on a TH-35 mm DIN rail, which is particularly important in crowded distribution boards.
• High efficiency: Rated discharge current of 20 kA provides protection against strong surges.
• Compliance with standards: Meets the requirements of the latest PN-EN 61643-11 standard, which confirms its safety and reliability.
• Universal wire cross-section: Supports wires with a cross-section of up to 35 mm² (solid/stranded) and 25 mm² (flexible), ensuring compatibility with various types of cabling.

Installation and parameters for professionals

The installation of the ETITEC C T2 surge protector is simple and intuitive thanks to the standard mounting on a TH-35 mm DIN rail. Remember to select the appropriate wire cross-section (maximum 35 mm² for solid and stranded wires and 25 mm² for flexible wires). The device does not have a remote signaling contact or an integrated backup fuse, which affects its simple construction and reliable operation. The rated AC voltage is 230 V, and the highest AC continuous operating voltage is 275 V. It is worth paying attention to the protection level of 1.5 kV – this is a key value determining the effectiveness of protection against overvoltages.