The 1210-3S-230 is a heavy-duty, three-pole Surge Protective Device (SPD) designed to protect high-risk electrical service entrances and branch panels. It operates on 220/380 V and 240/415 V AC systems with a maximum continuous operating voltage of 275 V. This device provides robust protection with a maximum discharge current (Imax) rating of 100 kA and a nominal discharge current (In) of 20 kA. Key features include a UL 60691 compliant thermal disconnector, remote signalling capability, and a visual fault indicator, all within a compact, DIN rail-mountable housing ideal for installations with limited space.