Surge arrester T1 25 KA 3P 412282

Protection of electrical installations and devices

Surge protector T1 25kA 3P is a key element in protecting the electrical installation from the effects of lightning strikes and overvoltages in the network. It provides protection against the harmful effects of voltage impulses that can damage connected devices. This is particularly important in areas prone to frequent thunderstorms or in installations powering sensitive electronic equipment.

This three-phase surge protector, designed for use with TN-C, TN-C-S and TN networks, is characterized by high efficiency thanks to the rated discharge current of 25 kA (8/20). The design based on a spark gap allows for a quick reaction to sudden voltage increases, minimizing the risk of damage. This surge protector is ideal for installation in main distribution boards, where it provides comprehensive protection for the entire installation.

Features and application

This surge protector finds application in residential, commercial and industrial buildings. Its versatility makes it suitable for both new and modernized installations. Mounting is done on a standard DIN TH-35 mm rail, which facilitates integration with existing distribution apparatus. The width of 6 modules allows for efficient use of space in the switchgear cabinet.

• High efficiency: Rated discharge current of 25 kA guarantees effective protection against strong surges.
• Optical indication: Built-in optical indicator informs about the status of the insert – green means efficiency, red – the need for replacement.
• Remote indication: The possibility of connecting to a remote status indication system enables monitoring of the surge protector's operation and a quick response in the event of a failure.
• Versatility: Designed for use with various network systems (TN-C, TN-C-S, TN).
• Safety: Provides a protection level of 1.5 kV, protecting against high impulse voltages.
• Mounting: Easy mounting on a standard DIN TH-35 mm rail.
• Wires: Supports wires with a cross-section of up to 35 mm², ensuring compatibility with most installations.

The surge protector has a degree of protection of IP20, which means protection against touching with a finger and solid objects larger than 12.5 mm. The maximum AC continuous operating voltage is 350 V. The integrated contact for remote signaling allows integration with electrical installation status monitoring systems.