Surge arrester for high-voltage applications, T1+T2, 400V AC, Iimp: 22kA (10/350), Imax: 100 kA, Uc: 440V AC RSP-EH25/100-440-30 2617375

Surge protection for high-voltage installations

This T1+T2 surge arrester is designed to protect electrical installations from the effects of overvoltages, including lightning strikes. It is a key element in protecting power systems, especially in areas exposed to high risk, such as building entrances or areas with frequent atmospheric discharges. The device's design allows for effective protection against both direct and indirect lightning strikes.

This arrester is designed for three-phase 3+0 networks with a rated voltage of 400V AC, and its versatility makes it suitable for various facilities – from residential buildings to industrial plants. It provides not only protection against overvoltages but also device status signaling, allowing for a quick response in the event of a failure.

Construction features and functionality

The device uses VT (Voltage Triggered) technology with a potential-free contact. This solution enables remote signaling of arrester failure, which is particularly important in monitoring and remote control systems. A width of 36mm per pole facilitates mounting in standard distribution boards. The plug-in design allows for quick and easy replacement of the device if necessary.

The arrester is characterized by high impulse current withstand parameters – Iimp 22kA (10/350) – which guarantees its reliability in extreme conditions. The maximum discharge current Imax is as high as 100kA, and the rated discharge current is 25kA. These values demonstrate the high protection efficiency offered by the device. This makes these arresters ideal for places requiring solid surge protection.

Application and benefits

• Protection against lightning strikes: Effectively protects electrical installations from damage caused by direct or nearby lightning strikes.
• Remote failure signaling: VT technology with a potential-free contact enables quick detection of failures and taking appropriate repair actions.
• Easy installation: Compact dimensions (36mm per pole) and plug-in design facilitate installation and replacement of the device.
• High reliability: Parameters such as Iimp 22kA and Imax 100kA guarantee effective protection even in the most demanding conditions.
• Versatility: Intended for three-phase 3+0 networks with a voltage of 400V AC, these arresters can be used in a wide range of applications.