DR-45 series is 45W single group output rail type industrial power supply Features. -Internationally recognized full range AC input -Protections: short circuit/overload/overvoltage/over temperature Natural air cooling -Mounting rail: TS-35/7.5 or TS-35/15 -AUTK MODEL NO DR- UL508 (Industrial Control Equipment) certified volume -LED POWER INDICATOR 100% full load aging test Switching frequency:100KHZ