RACK mounted buffer power supply unit. ROUPS 27,6V/10A RACK mounted buffer power supply unit(W=19”, H=2U, Power supply output: 1 x 9A/27,6VDC, Fuse type: glass fuse – 1x10A, Battery charging current: 1A, Efficiency: 85%). Power supply: 176÷264VAC, Technical output of the relay type: ALARM – collective failure.