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EFRD-S2257H |
1U 250W DC To DC Redundant Power Supply
N+1 Redundant Configuration
Dimension: 106(W) x 41.5(H) x 260(D) mm |
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 Features : |
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N+1 Redundant Design
High Efficiency≥80%
Power Failure Alarm
Front Access Ability
0~50℃ Working Temperature |
| General Specifications : |
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Input Range: -36V to -72VDC
Efficiency: ≧80% @ -48VDC
Short Circuit Protection
Over Current Protection
Over Voltage Protection
No load Operation
Over Temperature Protection
MTBF >100,000 Hours@25℃
Operating Temperature: 0 to 50 ℃
Operating Humidity: 20 to 90 %
EMI/RFI: CE, FCC class A
Safety: UL, CB, TUV, CCC, BSMI |
| Regulation, Ripple & Noise: |
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Output
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+3.3V
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+5V
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+12V
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-12V
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+5Vsb
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Load Regulation
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± 5%
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± 5%
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± 5%
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± 5%
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± 5%
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Line Regulation
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± 1%
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± 1%
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± 1%
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± 1%
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± 1%
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Ripple & Noise
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60mV
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60mV
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120mV
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120mV
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60mV
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| Input and Output Ratings: |
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Input
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Output
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Voltage
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Current
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Load
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+3.3V
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+5V
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+12V
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-12V
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-5V
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+5Vsb
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-36V~ -72VDC
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4-2A
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Max. Load
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20A
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20A
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20A
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0.5A
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-
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2A
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| Min. Load |
0A
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0A
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0.5A
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0A
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-
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0A
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NOTE:
- The +3.3 &+5 Volt total outputs shall not exceed 120W.
- Noise bandwidth is from DC to 20 MHz
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