Surge protector SPCT2-280/4 167596

Surge protection in electrical installations

The Eaton SPCT2-280/4 surge protector is a key element protecting electrical installations from the effects of both direct and indirect lightning strikes, as well as switching surges. The device effectively reduces voltage, protecting connected devices from damage and potential failures. Installing a surge protector is particularly important in residential, commercial and industrial buildings, where protection against surges translates to safety and continuity of installation operation.

Features and application

The SPCT2-280/4 surge protector is a 4-pole device designed for mounting on a TH-35 mm DIN rail. Its construction based on varistors ensures a quick response to voltage increases, reducing it to a safe level for receivers. It has optical indication of operating status – green indicates correct operation, and red indicates the need to replace the insert. The device complies with IEC 61643‑1+A1 standard for Class I+II protection and finds application in electric vehicle charging stations, battery energy storage systems, photovoltaic inverters on the AC side and heat pumps. It is a universal solution for 3-phase receivers requiring strong but sensitive protection.

Key parameters and benefits

The surge protector is characterized by an AC rated voltage of 280 V, which ensures compatibility with most standard electrical installations. Its maximum energy absorption capacity during surges is 40 kA (maximum discharge current (8/20)), and the rated discharge current (8/20) is 20 kA, providing effective protection against frequent surges. The protection level of 1.4 kV minimizes the risk of damage to connected devices. Optical indication facilitates quick identification of a damaged insert and the need for replacement, and mounting on a DIN rail ensures easy and quick installation in the switchgear cabinet. Compatibility with various network systems (TN, TN-S, TN-C-S and others) increases application flexibility, and the ability to connect wires with a cross-section of up to 35 mm² (flexible) and 25 mm² (rigid) provides a wide range of applications.

The SPCT2-280/4 surge protector constitutes an additional layer of protection, typically mounted in sub-distribution boards behind main Type 1 surge protectors. Its presence minimizes the risk of damage caused by surges, ensuring stable and safe operation of the electrical installation. It is worth remembering to regularly check the condition of the inserts and replace them if necessary, which guarantees continuous protection against the effects of unforeseen events.