B Series Type 2 Surge Panel, 480 VAC, Three Phase Delta, Max Surge Current Rating of 65kA per Mode/130kA per Phase, 200kA Short Circuit Current Rating (SCCR), 20kA I-nominal (l n ) Rating, NEMA 4X Rated Enclosure, Thermally Protected MOVs, VPR Performance Data = L-G: 1800, L-L: 1800, Maximum Continuous Operating Voltage (MCOV): 550V, Plastic Enclosure, LED Status Monitoring, Audible Alarm, UL 1449 Listed, UL 1283 EMI/RFI Filtering, Approximate Lead Length = 18"