Surge arrester type T1+T2, 4 poles, 230V AC, Iimp: 7.5kA (10/350), Imax: 50kA (8/20) RSP-E7.5-31 2617380

### Electrical installation protection – reliable surge arrester

This four-pole surge arrester RSP-E7.5-31 is a key element in protecting the electrical installation from the effects of sudden voltage surges. Designed to operate in 230V AC networks, it effectively protects against damage caused by both overvoltages and lightning strikes. Its plug-in design simplifies installation and replacement, which is particularly important when servicing the installation.

### Universal protection for different types of networks

This arrester combines the features of Type T1 and T2 arresters, providing comprehensive protection. It will work in TT, TN-S and TN-C systems, offering versatile applications in residential, commercial and industrial buildings. It is ideal for installation in auxiliary switchboards (SB), where surge protection is particularly important.

### Key parameters and features

* **High efficiency:** The maximum impulse current Imax is as high as 50kA (8/20), and the peak impulse current Iimp is 7.5kA (10/350) for L-N and 12.5kA (10/350) for N-PE, guaranteeing effective protection even with strong surges.

* **MOV technology:** The use of MOV (Metal Oxide Varistor) technology ensures a fast response to overvoltages and effective suppression. Additionally, the use of a potential-free contact enables remote signaling of arrester damage – information about the need for replacement is available without the need for visual inspection.

* **Compliance with standards:** The product meets the requirements of IEC/EN 61643-11:2011, IEC 60364-4-53 and IEC 62305 standards, confirming its safety and reliability. It also has a CE certificate and is RoHS compliant.

* **Status indicator:** The built-in mechanical status indicator (green/red flag) allows for a quick assessment of the device's efficiency – green indicates correct operation, and red indicates the need for replacement.

* **L-N and N-PE protection:** Provides protection for both the phase line to neutral (L-N) and neutral to protective earth (N-PE).

* **Rated discharge current:** 20kA for both L-N and N-PE configurations provides solid protection against recurring surges.

The maximum continuous operating voltage U is 275 V AC, the rated discharge current (8/20 μs) I is 20 kA, the maximum discharge current (8/20 μs) Imax is 50 kA, and the protection level U is 1.2 kV / 1.5 kV (L-N / N-PE). The response time does not exceed ≤ 25 Ns.

The RSP-E7.5-31 arrester is an investment in the safety of the electrical installation and the peace of mind of users. Its solid construction and advanced technologies guarantee reliable protection against the effects of surges for a long time.