COOPER BUSSMANN BSPH2A24D24LVR Low Voltage SPD 24V, Hybrid, Remote. More details: Surge Protection Device, Type 4, Location Type Type 3, Nominal Discharge Current 1kA, Voltage 24VAC/24VDC, Phase 1, Wire 6, Number of Poles 2, Max. Surge Current Per Phase 1kA, Max. Surge Current Per Mode 2kA, Max. Continuing Operating Voltage 30VAC/30VDCModes of Protection L-N/L/N-Gnd, Mounting Style DIN-RailEnclosure Type IP20Wire Gauge 12-18AWGLength 3.93, Width 0.71, Depth 2.56, Standards UL 1449 3rd Edition, IEC 61643-1, cUL, CSA, KEMA