Square D PBLD36400GNU31X Busway Plug-In Square D/Schneider Electric Busway Plug-In features a current rating of 400 amps with a voltage rating of 600 v. It has an interrupt rating of 25 kA 240 V AC, 18 kA 480 V AC, 14 kA 600 V AC. Specifications: Manufacturer: Square D/Schneider Electric Cat. No: PBLD36400GNU31X Alternate Part No: PBLD36400GNU31X Product Type: Busway Plug-In Trip Unit Type: Electronic, Standard, Micrologic 3.3, LI Frame Type: PBQ/LDP Type: PBLD Number Of Poles: 3 Phase: 3 Wire: 4 Voltage Rating: 600 V Amperage Rating: 400 A Interrupt Rating: 25 kA 240 V AC, 18 kA 480 V AC, 14 kA 600 V AC AWG Gauge: AWG 2/0 500 kcmil 2 phase, AWG 1/0 600 kcmil 2 neutral, AWG 6 300 kcmil 1 ground Size: 17.40 Inch H x 36.46 Inch W x 14.45 Inch D Mounting: Plug-in Approval: CSA, UL Brand: Square D[R] Authentic Square D/Schneider Electric Product