Features Compliance with BS EN/EN50155 and BS EN/EN45545-2 railway standard 1U low profile(25mm 2:1 wide input range Fanless design, half encapsulated, cooling by free air convection -40~+80℃ wide operating temperature DC output adjustable Protections: Short circuit / Overload / Over voltage / Input reverse polarity / Over temp. 4000VDC I / O isolation Half encapsulated, cooling by free air convection Operating altitude up to 5000 meters (Note.5) LED indicator for power on 3 years warranty General Specification Line regulation (max.) ± 0.5% Load regulation (max.) ± 1.0% Overload protection Range 105% ~ 135% Overload protection Type Constant current limiting 105~135% rated output power with auto-recovery Over-voltage protection 115% to 135% Shutdown O / P voltage, re-power on to recover Withstand voltage I / PO / P: 4kVDC, I / P-FG: 2.5kVDC, O / P-FG: 2.5kVDC, 1 minute Isolation resistance I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH Working temperature -40 ~ + 80°C (refer to output derating curve) Safety standards UL62368-1, IEC 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1 EMC standards EN55022 class B, EN50121-3-2, EN61000-4-2,3,4,5,6,8 Railway standard EN50155 / IEC60571 Dimension (LxWxH) (mm) 237 x 100 x 41mm Packing 1.45Kg;10pcs/15.5Kg/0.8CUFT