| Model | DRT-480-24 | DRT-480-48 | |
| OUTPUT | DC Voltage | 24V | 48V |
| Rated Current | 20A | 10A | |
| Current Range | 0 ~ 20A | 0 ~10A | |
| Rated Power | 480W | 480W | |
| Ripple & Noise (max.) Note.2 | 80mVp-p | 80mVp-p | |
| Voltage Adj. Range | 24 ~ 28V | 48 ~ 55V | |
| Voltage Tolerance Note.3 | ±1% | ±1% | |
| LINE REGULATION | ±0.5% | ±0.5% | |
| LOAD REGULATION | ±0.5% | ±0.5% | |
| Setup, Rise Time | 1200ms, 40ms/400VAC 800ms, 40ms/500VAC at full load | ||
| Hold Up Time | 16ms/400VAC 35ms/500VAC at full load | ||
| INPUT | Voltage Range Note.5 | Three-Phase 340 ~ 550VAC (Dual phase operation possible) 480 ~ 780VDC | |
| FREQUENCY RANGE | 47~63Hz | ||
| AC Current | 1.7A/400VAC 1.3A/500VAC | ||
| Efficiency | 89% | 90% | |
| Inrush Current | COLD START 50A | ||
| LEAKAGE CURRENT | <3.5mA /530VAC | ||
| PROTECTION | Over Load | 105%~150% rated output power | |
| Protection type: Constant current limiting, recovers automatically after fault condition is removed | |||
| Over Voltage | 30 ~ 36V | 59 ~ 66V | |
| Protection type : Shut down o/p voltage, re-power on to recover | |||
| OVER TEMPERATURE | 110°C±5°C(TSW1) detect on heatsink of power switch | ||
| Protection type : Shut down o/p voltage, recovers automatically after temperature goes down | |||
| ENVIRONMENT | Working Temp., | -20°C~+70°C; (Refer to “Derating Curve”) | |
| WORKING HUMIDITY | 20 ~ 90% RH non-condensing | ||
| Storage Temp., Humidity | -40°C~+85°C; 10%~95%RH | ||
| Temp. Coefficient | ±0.03%/°C(0~50°C) | ||
| Vibration | 10~500Hz, 2G 10min./1cycle, period for 60min, each along X, Y, Z axes | ||
| SAFETY | Withstand Voltage | I/P-O/P:3KVAC I/P-FG:1.5KVAC O/P-FG:0.5KVAC | |
| Isolation Resistance | I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25°C / 70% RH | ||
| EMC EMISSION | Compliance to EN55011, EN55022 (CISPR22) Class B, EN61000-3-2,-3 | ||
| EMC IMMUNITY | Compliance to EN61000-4-2, 3, 4, 5, 6, 8, 11, EN55024, EN61000-6-2, EN61204-3, heavy industry level, criteria A | ||
| OTHERS | MTBF | 91.1K hrs min. MIL-HDBK-217F (25°C ) | |
| DIMENSION | 227*125.2*100mm (W*H*D) | ||
DRT 480W 48V computer switching power supply
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