Mersen 83230128

The SPD Type 2+3, configured with a maximum discharge current of 20kA per phase, is designed to provide effective voltage surge protection in compliance with EN/IEC 61643-11 standards. This device functions optimally as the final stage of protection in electrical panels equipped with upstream Type 2 devices, such as the STP T2 40 SPDs. It is crucial to install the SPD as close to the protected equipment as possible to ensure maximum efficacy.

With a nominal discharge current of 10kA per phase and a combined voltage pulse rating of 10kV, the SPD supports various nominal operating voltage ratings, including 230/400V and 277/480V. Additionally, it features a short circuit withstand rating of 25kA and a response time of 25 ns, ensuring rapid reaction to surge events. The device utilizes a housing made from PA66 CT1 material and is rated to operate in AC systems.

The configuration supports rigid wire types from 6 to 35mm² and stranded wire types from 6 to 25mm², accommodating various installation requirements. The replacement plugs for the device are designated as SP23-20K320V for L-N and SP23-20K-N for N-Pe. The system configuration is TT, and it is imperative that the device is installed in accordance with the specified electrical standards.