Advanced Energy NGB250S48C Open Frame, Low Power AC-DC Power Supply (48 V; 5.2 A ; 250 W)

ELECTRICAL SPECIFICATIONS

Input

Input range: 85 to 264 VAC, 47 to 63 Hz, 1Ø

Input current: 2.6 A max at 115 VAC, 1.3 A max at 230 VAC

Inrush current: 75 A max., cold start @ 264 VAC input

Input fuses: 6.3 A, 250 VAC fuse provided in both line & neutral

Leakage current

+ Earth leakage current: <500 μA @ 264 VAC, 60 Hz, NC

+ Patient leakage current: <100/500 μA @ 264 VAC, 60 Hz, NC/SFC

Efficiency: >90% typical

No load input power :<0.5 W

Isolation voltage

+ Input/Ground: 2000 VAC (1 MOPP)

+ Input/Output: 4400 VAC (2 MOPP)

+ Output/Ground: 2000 VAC (1 MOPP)

Output

Output Voltage: 48 V

Output Current (fan)1: 5.2 A

Output Power (fan)1: 250 W

Output Current (convection /conduction): 3.6 A

Output Power (convection / conduction): 175 W

Terminations:

+ Input: 3 pin (pin 2 removed); 0.156 Ctr Connector (Class II)

+ Output: 6 pin Header 0.156 Ctr Connector

Ripple and noise: 1% of Vout on all models

Load regulation: 2%

Line regulation: 1%

Total regulation: 5%

Minimum load: Not required

Capacitive load: 1000 μF

Adjustment range: 5%

Initial set point tolerance: ±1 %

Overshoot: <3% overshoot at turn-on, <1% overshoot at turn-off, under all conditions

Monotonic waveform: PSU have monotonic wave forms on the main output at start up, shut down and fault (OVP, OCP, OTP, OPP, SCP) triggered shutdown.

Transient response: 500 μs response time for return to within 0.5% of final value for any 50% load step over the range of 25% to 100% of rated load, ∆i/∆t<0.2 A/μs. Max. voltage deviation is ±3.5% of final value.

Reliability

MTBF: >500K hrs per Telcordia 332, Issue 6, 25°C, full rated load at 110 VAC input.

Electrolytic capacitor lifetime: All specified electrolytic capacitors will exceed 10 year life based on operating at 25°C ambient temp., 24 hrs/day, 365 days/year.

Protection

Overvoltage protection: 115% to 155% of nominal output voltage. Requires AC recycle to reset.

Short circuit protection: Short across the output terminals will not cause damage to the unit. Hiccup mode.

Thermal protection: Will shutdown upon an over temperature condition. Auto-recovery mode.

Overload protection: 130% to 180% of rated output current value. Hiccup mode.

Datasheet