Mersen 83230123

The SPD Type 2+3, rated at a maximum discharge current of 20kA per phase, is engineered to effectively discharge voltage surges while ensuring a high level of voltage protection as per EN/IEC 61643-11. It serves as the final stage of protection in electrical panels equipped with upstream Type 2 protection devices, such as the STP T2 40 SPDs. For optimal performance, installation should occur as close as feasible to the protected equipment.

This device supports nominal operating voltages of 230/400V and 277/480V, and features a backup fuse rating of 63 A gG. The surge protective device is classified under Type 2+3/Class II+III standards, providing a response time of 25 ns and a short circuit withstand rating of 25 kA. Notably, the device features a combined voltage pulse of 10 kV and a maximum discharge voltage rating of 320 V, with a torque rating of 35.4 lb-in.

The housing is constructed from PA66 CT1 material, meeting V-0 flammability standards, and is compatible with rigid wires ranging from 6…35mm² and stranded wires from 6…25mm². This SPD is part of the Surge-Trap® Pluggable STPT23 Series - 20kA, designed for AC applications, ensuring reliability and compliance in surge protection.