RSP-T1T2-DC 9/3P
The Relpol RSP-T1T2-DC 9/3P is surge arrester for DC installations, type T1+T2, number of poles 3. Peak current Iimp: 9kA (10/350), total current Itotal: 18 (10/350), rated discharge current In: 20kA (8/20), maximum discharge current Imax: 50kA, Uc: Maximum continuous operating voltage 1000VDC.
The protection capability of RSP-T1T2-DC 9/3P is defined by the surge-current, operating-voltage, pole and class/type values stated above. Those exact ratings should be matched to the protected AC installation and its required lightning/surge protection level.