Mean Well Power Switch Mode Power Supply. High-efficiency up to 88% Long life and high reliability Low profile is1U High power density Auxiliary power is 5V/0.5A Built-in dual fans DC OK signal Remote sense Remote ON-OFF control Current sharing up to 3000W (2+1) LED indicator for power on Easy installation, input screw terminals and output 2xM4 bolts (supplied) Adjustable output voltage (±10%) Short circuit protection Overload protection Overvoltage and over temperature protection. EN 60950-1 UL 60950-1 TUV approved CB approved UL approved EN 61000-3-2 (harmonic current) EN 55022 class B (EMC) EN55032 (CISPR32) class B EN61000-3-2,-3 GB9254 class B GB17625.1 EN55024 EN61000-6-1 Criteria A.