Surge arrester T2 40kA 3P+N 412247

Protection of electrical installations and devices

Surge protector T2 40kA 3P+N is a key element in protecting the electrical installation from the effects of overvoltages, which can damage sensitive equipment. It is a Class 2 device (formerly Class C), recommended for use in distribution boards, especially in installations with higher power. Its task is to discharge excess energy to the ground, protecting connected receivers from damage.

Construction and application

The construction based on a varistor and spark gap ensures effective protection against overvoltages in 230/400 V~, 50/60 Hz power networks. This surge protector is designed to work with various network configurations – TT, TN-C, TN-C-S and TN. Mounting is done on a standard DIN TH-35 mm rail, which facilitates integration with the existing electrical infrastructure. Four modules occupied by the device allow for its convenient placement in a standard distribution board.

Key features and benefits

• High efficiency: Rated discharge current of 20kA (peak value) and the ability to discharge pulses with a current of up to 40kA/pole guarantee effective protection against overvoltages.
• Versatility: Possibility of use in various network configurations (TT, TN-C, TN-C-S, TN) increases the scope of its use.
• Status indicator: Optical status indicator allows for quick assessment of the surge protector's efficiency – green color indicates correct operation, orange indicates the need for replacement.
• Safety: L-N protection levels of 1.7 kV and N-PE 1.5 kV provide a high level of safety for connected devices.
• Compatibility: Possibility of connecting wires with a cross-section of up to 35 mm² (stranded) and 25 mm² (flexible) ensures compatibility with various types of installations.
• Compliance with standards: Meets the requirements of IEC/EN 61643-11 standards, which confirms its quality and safety of use.

Surge protector T2 is an investment in the safety and reliability of the electrical installation, which can prevent costly failures and downtime of equipment. This is especially important for sensitive electronic receivers, such as computers, televisions or home automation systems.