RSP-2L-48
The Relpol RSP-2L-48 is dC surge arrester for protecting data/signal lines. Protection for 2 individual lines. Rated operating voltage 48 V DC. Surge protection response time: Line-line ≤ 1 ns, Line-PG ≤ 100 ns. Maximum continuous operating voltage for DC: 55 V, for AC 38.5 V.
The protection capability of RSP-2L-48 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.