Specifications
Input Ratings / Characteristics
Nominal Input Voltage 100-240Vac
Input Voltage Range 85-264Vac
Nominal Input Frequency 50-60Hz
Input Frequency Range 47-63Hz
DC Input Voltage Range* 120-375Vdc
Input Current < 0.95A @ 115Vac, < 0.55A @ 230Vac
Efficiency at 100% Load > 89% @ 115Vac, > 90% @ 230Vac
Max Power Dissipation 0% load
100% load
< 0.3W @ 115Vac , < 0.5W @ 230Vac
< 6W @ 115Vac & 230Vac
Max Inrush Current (Cold Start) < 30A @ 115Vac, < 50A @ 230Vac
Leakage Current IEC/EN 60950-1 < 0.5mA @ 264Vac
(Neutral to PE terminal) IEC/EN 62368-1 < 1.0mA @ 264Vac
*Fulfills test conditions for DC input. Safety approval for DC input can be obtained upon request.
Output Ratings / Characteristics**
Factory Set Point Tolerance 24Vdc ± 2%
Output Voltage Adjustment Range 24-28Vdc
Output Current 2.1A (50W max.)
Output Power 50W
Line Regulation < 0.5% (@ 85-264Vac, 100% load)
Load Regulation < 1.0% (@ 85-264Vac, 0-100% load)
PARD*** (20MHz) < 70mVpp @ > 0°C to 70°C
< 100mVpp @ 0°C to -20°C
Rise Time < 30ms @ nominal input (100% load)
Start-up Time < 2,000ms @ 115Vac (100% load)
< 1,000ms @ 230Vac (100% load)
Hold-up Time > 20ms @ 115Vac (100% load)
> 100ms @ 230Vac (100% load)
Dynamic Response (Overshoot & Undershoot O/P Voltage) ± 5% @ 85-264Vac input, 0-100% load
(Slew Rate: 0.1A/μs, 50% duty cycle @ 5Hz to 1KHz)
Start-up with Capacitive Loads 3,000µF Max
Functional DC OK Relay Contact
(for DRS-24V50W1NR)
30V / 1A, resistive load
The relay contact are normally “ON” (closed) when the output
(Vout) is greater than 75% of its rated value and “OFF”
(opened) when the output (Vout) is less than 75% typ.
**For power de-rating from < -10°C to -20°C, and 55°C to 70°C, see power de-rating on page 3.
***PARD is measured with an AC coupling mode, 5cm wires, and in parallel with 0.1μF ceramic capacitor & 47μF electrolytic capacitor.
