Surge arrester T2, T3 (C, D) - with fuse link ETITEC MF T23 300/20 4+0 002440706

Electrical installation protection with ETITEC MF T23 300/20 4+0

The ETITEC MF T23 300/20 4+0 surge protector is a reliable element protecting the electrical installation against the effects of atmospheric and switching surges. Designed to work with TN-S networks, it provides effective protection for electrical and electronic devices in residential, commercial and industrial buildings. Its varistor technology-based construction guarantees a quick response to sudden voltage increases.

Functionality and application

The device is classified as a Type T2 and T3 surge arrester, which means it effectively attenuates both strong and weaker surges. The integrated backup fuse protects against overload and short circuit, increasing safety. Optical signaling informs about the operation of the device, making it easier to identify the need for replacement. Mounting is done on a standard DIN TH-35 mm mounting rail, which facilitates installation in electrical switchboards.

Key features and benefits

• High protection efficiency: Rated discharge current up to 20 kA (8/20 μs) and maximum discharge current 40 kA provide effective protection against surges.
• Versatility: Designed for TN-S networks, but parameters allow for use in various configurations.
• Safety: Integrated backup fuse protects against overload and short circuit.
• Ease of use: Optical indication of operation facilitates diagnostics.
• Compact size: Occupies only 4 modules in the switchboard, saving space.
• Connection flexibility: Possibility of connecting wires with a cross-section of up to 35 mm² (single-/multi-stranded) and 25 mm² (flexible).
• Durability: Short-circuit strength at 50 kA ensures resistance to damage during short circuits in the installation.
• Protection level: Provides a protection level of 1.5 kV L-N and N-PE, minimizing the risk of damage to connected devices.

The ETITEC MF T23 surge arrester is a solid solution for anyone who cares about the safety of their electrical installation and protects valuable devices from damage caused by surges. It is an investment in peace of mind and the long-term reliability of the power system.